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Showing impact case studies 1 to 3 of 3
Submitting institution
The University of Leicester
Unit of assessment
7 - Earth Systems and Environmental Sciences
Summary impact type
Environmental
Is this case study continued from a case study submitted in 2014?
No

1. Summary of the impact

Professor Page’s peatland carbon and greenhouse gas (GHG) emissions research drove global government and NGO policies to protect carbon rich peatlands and rainforests, better understand the environmental impacts of peatland agriculture and palm oil production, enhance the sustainability of pulpwood production, and develop methodologies to limit climate change. Government and policy/advisory bodies—including the Indonesian and UK governments, and the United Nations—have adopted Page’s data on peatland GHG emissions and recommendations on emissions mitigation, which has transformed worldwide peatland management policies. Page’s research contributed to renewable energy directives, including the EU Parliament’s and Norway Government’s bans of palm oil-based biofuels.

2. Underpinning research

Peatlands are globally important carbon stores but when drained (e.g. for agriculture or plantations), the peat degrades, and stored carbon is released to the atmosphere as greenhouse gases (GHGs). Drainage also increases the risks of peatland fires, which in Southeast Asia cause significant deteriorations in public health and associated premature mortalities, and of peat subsidence, resulting in flooding which may ultimately preclude agricultural land use.

Page’s research on the 1997 Indonesian peatland fires [ R1, G1] determined the scale of peat carbon loss and GHG emissions arising from this source and was the initial research to draw attention to this issue. Page’s continuing research brought public and policy-makers’ attention—again, for the first time—to the scale of land use changes on SE Asian peatlands and the carbon losses arising from drainage-driven peat degradation [ R2], showing that emissions from peatland drainage in Southeast Asia were contributing the equivalent of 1.3% to 3.1% of global CO2 emissions from the combustion of fossil fuels.

Page’s 2011 research established the extent and magnitude of the tropical peatland carbon store [ R3, G2], demonstrating that Southeast Asian peatlands contain 77% of tropical peat carbon stocks. In 2011, Page also published two studies, funded by the International Council on Clean Transportation (ICCT) identifying the scale of GHG emissions arising from large-scale oil palm plantations on peatland [ R4] along with their current and modelled future spatial extent in Southeast Asia.

Page undertook consultancy-funded research through Deltares (2008-2010) to establish the consequences of drainage on peatland subsidence and flood risk in Southeast Asian plantation landscapes (2012) [ R5] and demonstrated that rapid initial subsidence over the first five years accounted for surface lowering of around 1 metre, with longer term lowering of 5 cm per year. Whilst peat subsidence was already a recognised feature of drained peatlands in the temperate zone, this was the first large-scale study to quantify subsidence in tropical peatlands. The results demonstrated that within only a few decades, subsidence would bring the peat surface down to levels at which drainability and flooding would become increasingly problematic, eventually resulting in extensive loss of productive land.

In 2018, Page and team discovered vast, previously undocumented peatlands in the Republic of Congo driven by their research (2018-2023 NERC-funded) in Central Africa [ R6, G3]. A combination of fieldwork and remote sensing analysis revealed the world’s largest extent of tropical peatland, covering 145,500 km2 and storing 30.6 billion tonnes of carbon. This increased Page’s previous best estimate of total tropical peatland carbon stocks [ R3] by 36%.

Page’s Defra and NERC-funded research on lowland peatlands in the Fens of eastern England established the GHG emissions factors for UK lowland peat under agricultural management [ G4]. This research confirmed that lowland peats in England and Wales under crops and grassland are amongst the largest sources of GHG emissions from the UK land-use sector. The study formed the basis of further NERC- and Defra-funded studies on opportunities for GHG mitigation through agricultural management and restoration measures [ G5, G6].

3. References to the research

[R1]. Page, S.E., Siegert, F., Rieley, J.O., et al. (2002). The amount of carbon released from peat and forest fires in Indonesia during 1997. Nature 420, 61-65.

[R2]. Hooijer, A., Page, S.E., et al. (2010) Current and future CO2 emissions from drained peatlands in Southeast Asia. Biogeosciences 7, 1505-1514.

[R3]. Page, S. E., Rieley, J.O. & Banks, C.J. (2011) Global and regional importance of the tropical peatland carbon pool. Global Change Biology 17, 798-818.

[R4]. Page, S.E., Morrison, R. & Malins, C. (2011) Review of peat surface greenhouse gas emissions from oil palm plantations in Southeast Asia. Indirect Effects of Biofuel Production 15, 1–77. (ICCT White Paper. Washington: International Council on Clean Transportation).

[R5]. Hooijer, A., Page, S.E. & Jauhiainen, J. (2012) Subsidence and carbon loss in drained tropical peatlands. Biogeosciences 9, 1053–1071.

[R6]. Dargie, G., Lewis, S., Lawson, IT, Page, S.E., et al. (2017) Age, extent, and carbon storage of the central Congo Basin peatland complex. Nature 542, 86-90.

Relevant grants

[G1]. Prof. Susan Page (Co-I) (PI, University of Nottingham), via EUTROP: Natural resource functions and biodiversity of tropical peatlands in SE Asia. Funder: European Commission. Dates: 1/10/1998 – 30/9/2002. Value : GBP41,439. UoL grant number: RM48GPE.

[G2]. Prof. Susan Page (PI), via CARBOPEAT: Carbon-climate-human interactions in tropical peatlands. Funder: European Commission. Dates: 1/1/2007 – 31/10/2009. Value : GBP102,750. UoL grant number: RP13G0020.

[G3]. Prof. Susan Page (Co-I), Dr Arnoud Boom (Co-I) (PI, University of Leeds), via CongoPeat: Past, present and future of the peatland of the central Congo basin. Funder: NERC. Dates: 01/09/2018 – 31/08/2023. Value: GBP148,996. UoL grant number: RP13G0359.

[G4]. Prof. Susan Page (Co-I), Dr Joerg Kaduk (Co-I) (PI, CEH). Lowland peatland systems in England and Wales: evaluating GHG fluxes and carbon balances. Funder: Defra (SP1210). Dates: 1/4/2012 – 31/3/2016; Value: GBP158,565. UoL grant number: RP13G0199. Final report on project SP1210 (2017): Lowland peatland systems in England and Wales – evaluation of greenhouse gas fluxes and carbon balances. Defra. http://sciencesearch.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=0&ProjectID=17584

[G5]. Prof. Susan Page (Co-I), Dr Joerg Kaduk (Co-I) (PI, CEH). Managing agricultural systems on lowland peat for reduced GHG emissions. Funder: Defra (SP1218). Dates : 1/2/2019 – 31/3/2022; Value: GBP55,312. UoL grant number: RP13GO425. Initial reports: i) An assessment of the potential for paludiculture in England and Wales; ii) An assessment of the societal impacts of water level management on lowland peatlands in England and Wales. Both available at: https://lowlandpeat.ceh.ac.uk/outputs

[G6]. Prof. Susan Page (Co-I), Dr Joerg Kaduk (Co-I) (PI, University of Bangor). Supporting long-term ecosystem function in lowland organic soils (SEFLOS). Funder: NERC. Dates : 1/3/2017 – 31/1/19; Value: GBP40,024. UoL grant number: RP13G0327.

4. Details of the impact

Policies on greenhouse gas (GHG) emissionsSince 2014, Page’s research [ R1, R2, R5] led to the first methodologies for calculating specific GHG emissions factors for peat oxidation and fire for degraded tropical peatlands [ E1a-d]. The Indonesian Ministry of Environment and Forestry report (2015) [ E1a] extensively implemented Page’s methodologies to support the Government of Indonesia and United Nations Framework Convention on Climate Change (UNFCCC) initiative to reduce GHG emissions under REDD+ [ E1c]. The Indonesian government incorporated Page’s methodologies into two schemes for international emissions projection estimates (2015): INCAS [ E1a] and UNFCCC [ E1b] – now the standard methodology for assessment of GHG emissions from forests and peatlands in Indonesia. Page’s peatland emissions research was used in the 2017 UNEP Emissions Gap Report, providing estimates to reduce global GHG emissions by 2030 [ E1d].

Policies on biofuels derived from palm oil Page’s research on carbon emissions from Indonesian peat fires [ R1] contributed to the European Parliament’s 2017 vote to ban biofuels made from vegetable oils, including palm oil, by 2020 [ E2a]. The Rainforest Foundation, Norway, drew upon Page’s findings on GHG emissions from peat oxidation and fire [ R3, R4], leading to a total ban on the public procurement and use of palm oil-based biofuel in Norway (June 2017)—the first country ban by a public entity on palm oil biofuel use [ E2b,c,d]. Page’s data [ R4] drove the European Parliament Environment Committee (ENVI) to phase out biodiesel from vegetable oils by 2030, with accelerated phasing-out of palm oil biofuel use in Europe by 2021 [ E2e].

Global, sustainable peatland and forest management policies

Transforming paper production practice in IndonesiaPage co-developed the Independent Peatland Expert Working Group (IPEWG) to inform sustainable forest and peatland management by APRIL, one of Indonesia’s largest pulpwood plantation industries [ E3a-h]. Page is an IPEWG member, and further co-developed APRIL’s Peatland Roadmap (2017) [ E3a]. Page’s research [ R1 – R5] provided strategic evidence for responsible peatland operations, including supporting APRIL’s appointment of a peatland Science Team.With inputs from Page and IPEWG, the Science Team undertook research that developed APRIL’s knowledge in three critical peatland science areas: the net flux of greenhouse gases, water-table management and subsidence. This included establishing four eddy covariance flux towers (2017–2020), which measure the land-atmosphere exchange of carbon dioxide and methane, and provide critical data on their exchange in natural, plantation and mixed-use peatland (2019) [ E3b]. In 2019, IPEWG and the Science Team evaluated the effect of APRIL’s plantation management on peat subsidence, which provided guidance to APRIL on best peatland management and water table regulation practices [ E3c].

Policies to manage peatland drainagePage et al’s research connecting peatland drainage to subsidence, flooding, GHG emissions, and fire risk [ R1, R2, R4, R5] provided substantial evidence for three Wetlands International (WI) peatland management recommendations, supporting the Indonesian government’s 2016 commitment to restore 2 million ha of degraded peatland [ E4a]. Page’s findings on peatland subsidence rates [ R5] and SE Asia’s peat forest losses [ R2] informed WI 2015 (Malaysia) flooding projections and recommendations for sustainable peatland development [ E4a]. Page’s subsidence data [ R5] informed WI 2015 (Indonesia) projections that “within 25, 50 and 100 years, 71%, 83% and 98% of the existing plantation area [will] experience . . . flooding” without immediate action [ E4b]. WI 2016 also used these data [ R5] to identify Indonesia’s existing peatland management system as “unsustainable and irresponsible”, and to demand the phasing out of drainage in most of Indonesia’s peatlands. [ E4c].

Sustainable palm oilPage’s research [ R2, R4, R5] and advisory role with the Roundtable on Sustainable Palm Oil (RSPO) contributed to its Best Management Practice (2016) [ E5a] and Drainability Assessment Guidance (2019) [ E5b], to reduce GHG emissions from oil palm plantations on peatland and mitigate risks of flooding from subsidence.

Congo Basin and global peatland protectionAs Co-I of a GBP3.1M NERC-funded research project [ R6, G3], Page and team discovered a vast area of tropical peatland in the Congo Basin (2018). This peatland occupies 145,500 km2—an area slightly larger than England—and stores 30 billion tonnes of carbon: equivalent to three years’ worth of global GHG emissions. These findings spurred the Brazzaville Agreement (2018) [ E6a] to conserve Congolese peatlands, signed by the governments of Republic of Congo, Democratic Republic of Congo, Peru, and Indonesia, under the auspices of the UN Environment Programme (UNEP) and the International Union for Conservation of Nature (IUCN) [ E6a]. It further motivated the 2018 establishment of the UNEP Global Peatlands Initiative, a cooperation of 28 organisations, including Page/University of Leicester, to promote best practices in peatland management [ E6b-c] .

UK environment and emission policiesPage’s Defra-funded research (2012-2016) on GHG emissions from peatland under intensive agricultural management in eastern England [ G4] informed the recommendation of the UK Parliament Environmental Audit Committee’s report on Soil Health (2016) that the Government should take tougher action to tackle land use practices that degrade peat [ E7a]. The UK government’s reporting to UNFCCC (published by BEIS) used Page’s data [ G4] as evidence for Tier 2 reporting on GHG emissions from agricultural lowland peatlands [ E7b].

5. Sources to corroborate the impact

Policies on Greenhouse Gas emissions

[E1a]. Indonesian National Carbon Accounting Scheme INCAS

[E1b]. INCASReport-1501E- AnnualGHG https://tinyurl.com/y6loasvg

[E1c]. Indonesian Government submission to United Nations ‘National forest reference emissions level for REDD+’ (2015): https://tinyurl.com/y3jx2bne

[E1d]. United Nations Environment Programme report ‘Sectoral greenhouse gas emission reduction potentials in 2030’ (2017): https://tinyurl.com/ya2yudgv

EU and European Government policies on biofuels derived from palm oil[E2a]. ENVI MEPs vote biodiesel ban palm oil 2017 https://tinyurl.com/y3ys4gh3

[E2b]. Norway government ban on palm-oil derived biofuels: [E2c]. Norway Parliament palm oil ban For-peats-sake https://tinyurl.com/y4b57xdx

[E2d]. Norway Parliament palm oil-biodiesel ban-news2017 https://tinyurl.com/y4pam4sb

[E2e]. European Parliament ban on palm-oil derived biofuels: https://tinyurl.com/mprc8g4

Sustainable Land and Forest Management Policies[E3a]. IPEWG road map and working plans: https://tinyurl.com/yyvuz76b

[E3b]. APRIL reports. Methane: https://www.rekoforest.org/carbon-measurement. [E3c]. APRIL reports. Subsidence: https://tinyurl.com/y274wu8l [E3d]. APRIL 2019 Sustainability news

[E3e]. APRIL 2019 Sustainability Report

[E3f]. APRIL-IPEWG Phase1 Update 2018

[E3g]. APRIL Peatland Management 2015

[E3h]. APRIL-SustForestMan Policy 2015

Global policies to manage peatland drainage

[E4a]. Wetlands International report 2015: Flooding projections from elevation and subsidence models for oil palm plantations in the Rajang Delta peatlands, Sarawak, Malaysia, 2015. https://tinyurl.com/y4lmsglo

[E4b]. Wetlands International report 2015: Assessment of impacts of plantation drainage on the Kampar Peninsula peatland, Riau. https://tinyurl.com/yxhzhgjh

[E4c]. Wetlands International report 2016: Can Peatland Landscapes in Indonesia be Drained Sustainably? An Assessment of the ‘eko-hidro’ Water Management Approach. https://tinyurl.com/yxpy77xw

RSPO[E5a]. RSPO Manual on Best Management Practices (BMPs) for Existing Oil Palm Cultivation on Peat: https://tinyurl.com/y28f3blc [E5b]. RSPO Drainability Assessment Procedure: https://tinyurl.com/y5t7dpur

Congo Basin and global peatland protection[E6a]. The Brazzaville Agreement, 28 March 2018: https://tinyurl.com/y5mcskb6 [E6b]. The Global Peatlands Initiative: https://www.globalpeatlands.org/ [E6c]. UNEP feature on the Global Peatlands Initiative: https://tinyurl.com/y5xppds8

UK land management policies

[E7a]. UK Parliament Environmental Audit Committee’s report on Soil Health: https://tinyurl.com/yyhmh9br

[E7b]. Emission factors for UK peatlands (BEIS): https://tinyurl.com/sz3m42y

Submitting institution
The University of Leicester
Unit of assessment
7 - Earth Systems and Environmental Sciences
Summary impact type
Technological
Is this case study continued from a case study submitted in 2014?
No

1. Summary of the impact

Dr David Holwell’s research led to new, geologically targeted ore-exploration strategies and mining procedures for four mining and exploration companies in the UK, Greenland, and Zambia. This research contributed a total GVA of GBP408,804,900 to these companies and to regional economies by enabling mergers, accelerated productivity, and reduced capital expenditure; by leveraging regional investment; and through the creation of c. 500 jobs in an economically deprived region of Zambia.

In particular, the research facilitated the closed Munali Nickel Mine, Zambia, to reopen in 2019, producing 3,600 tonnes of nickel annually by December 2020, worth GBP37,546,750. It enabled ASX-listed Conico to purchase Longland Resources, Greenland, in October 2020, worth GBP1,760,000.

2. Underpinning research

Since 2009, Dr David Holwell’s research has focused on developing new, strategic, geological search methodologies for reducing economic and energy costs in the mining industry. Mineral exploration is essentially a search-area-reduction exercise, with the aim of discovering a mineral resource. Making exploration more efficient in terms of generating targets, and reducing the search space in this ‘needle-in-a-haystack’ exercise saves the minerals industry millions of dollars (a typical exploration drilling programme is c. USD1,000,000 – 2,000,000). Through collaboration with industry at every stage, Holwell has applied a multi-technique approach that utilises a classic ‘source-pathway-sink’ scientific framework. Predicting where to explore for the ‘sink’ (ore deposits) relies on understanding the processes of source and pathway and being able to fingerprint them [ R1-R5].

In Greenland, the publication of work on newly discovered mineralisation and the identification of high potential for discovery of new copper-palladium and gold ore deposits [ R1, R2] illustrates this multi-technique approach. The publication [ R1] outlines the ‘fingerprints’ of a pathway, with confirmation that many of the source characteristics are there, and thus provides strong evidence of a sink (deposit). In addition, the discovery of the first gold mineralisation in east Greenland [ R2] has generated an exploration strategy to develop this deposit. Longland Resources (now Conico), set up on the basis of these findings [ R1, R2], is currently actively exploring the area for such deposits.

Holwell’s research at the Munali mine in Zambia [ R3- R5] revealed that different parts of the orebody have varying metallurgical characteristics, including a copper-rich zone [ R5]. Howell’s methodology has developed a new mineral exploration technique for nickel deposits [ R7]. Magnetite is a common mineral in many rock types, including those that host nickel deposits. But Holwell’s research showed that magnetite associated with nickel sulfide deposits is chemically distinct from other sources [ R7]. Thus, Holwell discovered that magnetite in soils can be used to trace the possible presence of hidden nickel deposits. Holwell’s novel research process defined a new exploration ‘fertility indicator’ for nickel mineralisation that can be picked up from surface soil. The results instigated a regional soil-sampling programme by Consolidated Nickel Mines (CNM) around the Munali Mine, Zambia (2015-present), which in one are identified magnetite with strong fertility indicators.

The application of automated mineralogy to informing mineral processing [ R6] has been applied at the Kitumba Copper Project in Zambia, where ongoing research since 2018 with ZEISS and CMI is providing key new information on the nature of a copper orebody that had been discovered, but had yet to be exploited.

3. References to the research

[R1]. Holwell, D.A., Abraham-James, T.H., Keays, R.R. and Boyce, A.J. 2012. “The nature and genesis of marginal Cu- PGE-Au sulphide mineralisation in Palaeogene Macrodykes of the Kangerlussuaq region, east Greenland”. Mineralium Deposita, 47, 3–21.DOI: https://doi.org/10.1007/s00126-010-0325-4

[R2]. Holwell, D.A., Jenkin, GRT, Butterworth, KG, et al. 2013. “Orogenic gold mineralisation hosted by Archaean basement rocks at Sortekap, Kangerlussuaq area, east Greenland”. Mineralium Deposita, 48, 453-466. DOI: https://doi.org/10.1007/s00126-012-0434-3

[R3]. Holwell, D.A., Michell, C.L., Howe, G.A., et al. 2017. “The Munali Ni sulfide deposit, southern Zambia: A multi-stage, mafic-ultramafic, magmatic sulfide-magnetite-apatite-carbonate megabreccia”. Ore Geology Reviews, 90, 553-575. DOI: https://doi.org/10.1016/j.oregeorev.2017.02.034

[R4]. Blanks, D.E., Holwell, D.A. and Barnes, S.J. 2017. “Magmatic sulphide mineralisation of the Munali nickel deposit: evidence for immiscible sulphide-carbonate-phosphate-silicate melts?” Proceedings of the 13th Biennial Society for Geology Applied to Mineral Deposits Meeting 2017, Quebec City, Canada, Volume 2, 415-418. http://hdl.handle.net/102.100.100/88107?index=1

[R5]. Blanks, D.E., Holwell, D.A., and Barnes, S.J. 2018. “Carbonate-rich magmatic Ni-Cu-PGE mineralisation at Munali: a new style of magmatic sulfide deposit?” Abstract volume, 13th International Platinum Symposium, Polokwane, South Africa.

[R6]. Holwell, D.A., Adeyemi, Z, Ward, L.A. Ward, et al, 2017. “Low temperature alteration of magmatic Ni-Cu-PGE sulfides as a source for hydrothermal Ni and PGE ores: A quantitative approach using automated mineralogy”. Ore Geology Reviews, 91, 718-740,

DOI: https://doi.org/10.1016/j.oregeorev.2017.08.025

[R7]. Ward, L.A., Holwell, D.A., Barry, T.L., et al, 2018. The use of magnetite as a geochemical indicator in the exploration for magmatic Ni-Cu-PGE sulfide deposits: a case study from Munali, Zambia. Journal of Geochemical Exploration, 188, 172–184. DOI: https://doi.org/10.1016/j.gexplo.2018.01.018

4. Details of the impact

Legacy mineral exploration techniques and extraction methods require significant resource, time, and cost. Dr David Holwell’s research methodologies [ R1- R7] informed new exploration strategies and mining procedures in Greenland and Zambia, directly and indirectly contributing GVA GBP408,804,900 to four mining and exploration companies in the UK, Greenland, and Africa; and to local economies in Zambia through investment and c. 500 jobs [ E1-E5].

Transforming business strategies worth GBP3,300,000 in GreenlandHolwell’s research methodologies [ R1-R5, R7] changed exploration and mining strategies for two companies: Longland Resources (Longland – now Conico), Greenland. Holwell’s accurate geological predictive geological capability contributed to GBP3,300,000 in economic growth for both companies through leveraged investment, accelerated productivity lead-time through strategic, surface-level exploration, and company mergers [ E1, E2].

The Mineral Systems Approach (MSA) methodology increased the value of the Ryberg exploration project, Greenland, by GBP1,750,000 following their purchase by ASX-listed Conico [ E2]. Holwell’s MSA research in Greenland (2008-2014) [ R1] identified indicators of mineral resources, and pinpointed likely targets within a vast region. Longland Founder/Director and now Conico CEO (TAJ) confirmed that Holwell’s research “ highlighted significant potential for the discovery of a large nickel, copper and palladium deposit, which provided the basis for the decision… to set up the company [and] increase the licence area from 299km² to 3,889km²” [ E1]. Furthermore, the discovery of gold reported in [ R2] is of particular interest to Conico, who are currently exploring the site [ E1].

Holwell’s methodology [ R1] equipped Longland with the research evidence and strategic viability required to raise GBP1,580,000 investment [ E1] for exploration for both copper-palladium, and gold deposits in summer 2020. Longland applied Holwell’s strategic, targeting methods [ R1] to apply electromagnetic geophysical surveys, in order to generate focused targets to reduce drilling time and costs [ E1].

Howell’s “ significant research contributions . . . resulted in [Longland’s] credibility to gain the interest of an acquirer” – CEO Conico [ E1]. In October 2020, Australian ASX-listed company, Conico, merged with Longland, which increased trading share prices by 11.5% by 4 November 2020 [ E2]. This acquisition was “The most significant and tangible measure of the impact [from Holwell’s] research, with the result that Longland has increased its value by GBP1,750,000” [ E1].

Transforming mining and employment in Zambia worth c. USD540,000,000

(c. GBP405,504,900 21 December 2020)

Resurrecting the Munali Nickel MineThe Munali Nickel Mine in Southern Province, Zambia (Munali) was placed on care and maintenance in 2011 by then-operator Albidon, in part due to “ using the wrong geological model, hence the wrong mining method . . . leading to uneconomic operations” [ E5]. The mine was taken over by Consolidated Nickel Mines (CNM), who approached Holwell (2015-present) to help develop their geological and metallurgic understanding [ R2], leading to the Munali Mine Mineralisation Model (MMMM) [ E3]. Holwell’s MMMM and strategic protocols for understanding ore nature and continuity; and ore zone predictability [ R3, R4] improved Munali’s exploration indicators and their core logging, data gathering, mineralisation classification protocol [ E3]. Munali specifically used Howell’s magnetite research [ R7] as an exploration indicator to define their exploration drill targets, and to contribute to better understanding of an orebody’s predictable ‘shoots’ of nickel, copper, cobalt and platinum group elements [ R3, R4, E3]. The former CNM CEO (2013-2020) confirmed that, by applying strategies informed by Holwell's research [ R2- R4], CNM were able to extend the viability of the mine to target Munali’s resources. He stated: “By changing understanding in this way, CNM have been able to redesign the mining operations and brought the mine back into production in 2019”, and exports of nickel and platinum concentrates began in May 2020. [ E4]. He further stated: “With the assistance of Dr Holwell’s research, Munali was able to begin producing nickel and platinum concentrates in April 2020, producing an annual 3,600 [tonnes] rising to 4,800 tonnes per annum of nickel in concentrate, valued, depending on nickel price, [at] USD40,000,000 – 60,000,000 per annum” (04-2020, c. GBP37,546,750 12-2020) [ E4, E5].

Munali’s Superintendent of Geological Services stated that Holwell’s research was “of phenomenal importance to our understanding of the Geology of Munali Mine” [ E3]. Munali is now able to give “much needed assurance to investors” by providing “improved mining services, consistent feed to the processing plant [and] better understanding of the variability of the resource model” [ E3]. “Dr Holwell’s work [also potentially] increased the Life of Mine (LOM) of about 20 to 30 percent” [ E3]. The former CNM CEO further stated: “The increased capacity from Holwell’s research directly impacted on jobs at Munali Mine, which now employs more than 400 people with a 99% Zambian workforce” [ E4, E5].

Transformed processing strategies for significant capital savings at KitumbaHolwell’s research [ R6]—which he has applied since 2018 at The Kitumba Copper Project, Kitumba, Zambia, and in partnership with CMI and ZEISS—has changed CMI’s understanding of ore processing techniques, leading to significant economic benefits for CMI [ E4]. This research highlighted a critical misidentification in the mineralogy from previous work on the deposit. The results of the research enabled CMI to design and optimise their mineral processing strategy for the ores to minimise mining costs and maximise revenue from the copper resource. By confirming this feasibility, Holwell’s research reinforced CMI’s plans to develop the project, and changed CMI’s proposed processing technique. CMI’s CEO stated that Holwell’s research showed that “the ore will respond much more favourably to the extraction technique (acid leaching) than previously thought. This change in practice equates to a reduction in the capital costs required to develop the project from c. USD450million to a more financeable USD220million”, saving the company 51% in capital costs worth USD230M (12-2020) [ E4].

Economic impact in a deprived region of Zambia

CMI’s CEO stated: “The increased capacity and production that Holwell’s research enabled at both Munali and Kitumba [ R1- R7] has brought more than USD60million in investment into Zambia, with a further USD220million planned in 2021 from the UK and China” (12-2020) [ E4]. As of December 2020, CMI has brought both direct and indirect employment for c.500 people in the economically deprived Southern and Central provinces region of Zambia. Furthermore, CMI has worked with the Zambian and British governments to bring an additional USD100million (12-2020) in investments into Zambian SMEs as part of its contribution to its sustainable development goals [ E4].

5. Sources to corroborate the impact

[E1]. Testimonial letters from Founder/Director of Longland relating to Longland / Mount Ridley Mines / Conico, February and November 2020.

[E2]. Compiled Longland/MRM/Conico merger news and market reports.

[E3]. Testimonial letter from Mabiza Resources Superintendent of Geological Services, Munali Nickel Mines.

[E4]. Testimonial letter from CEO of CMI/CNM, 14 December 2020.

[E5]. Compiled Consolidated Nickel Mines/Munali materials: CNM Brochure, April 2019; CNM Factsheet, February 2020; Mining Technology News feature; Munali Nickel Mines website.

Submitting institution
The University of Leicester
Unit of assessment
7 - Earth Systems and Environmental Sciences
Summary impact type
Technological
Is this case study continued from a case study submitted in 2014?
No

1. Summary of the impact

Climate change is one of the most significant global threats in the 21st Century. The Kyoto Protocol and subsequent Paris Agreement have sought to reduce greenhouse gas (GHG) emissions across the world to limit global warming. Scrutiny of global progress and political response is dependent on independent and accurate monitoring of these emissions.

The Leicester Greenhouse Gas Remote Sensing Group (GGRSG) has redefined monitoring methods, protocols and processes providing significantly improved accuracy and reliability of satellite-derived GHG data. Their research has enabled international environmental and space programmes to provide governments and space agencies with resources and recommendations to facilitate monitoring and verification. GGRSG researchers are now playing a leading role in the first-ever purpose-built European CO2 Monitoring satellite mission and were instrumental in devising the European operational system, which meets the political and delivery needs for monitoring and verification of carbon emissions.

2. Underpinning research

The University of Leicester is a world leader in remote sensing of greenhouse gases (GHGs) from space with over a decade of successful intensive research across three broad areas: development of fundamental methods for reliable CO2 and CH4 measurement from space, specification of new space-based concepts for GHG sensing and linking space-based data to surface GHG fluxes (both emissions and uptake). For more than a decade, the team has played a key role in interpreting data from the ENVISAT SCIAMACHY instrument (launched 2002), the Japanese Greenhouse gases Observing SATellite (GOSAT, launched in 2009) and NASA Orbiting Carbon Observatory (OCO-2, launched in 2014). This research has been supporting the fundamental scientific development of retrieving CO2 and CH4 concentrations (or columns) from space-based observations and the subsequent scientific analysis methods of these data, as used by today’s satellite GHG missions. The key steps in the research were the demonstration of accurate retrievals of CH4 and CO2 from space-borne sensors and to demonstrate the feasibility of robustly estimating surface fluxes from space-borne data using atmospheric inverse methods. As one of the first groups in Europe to conduct research into GHG retrievals from satellites, they discovered the need to include suitable a priori information within existing retrieval methods (Weighting Function Modified Differential Optical Absorption Spectroscopy WFM-DOAS) in order to minimize the errors on the retrieved CO2 columns from the SCIAMACHY instrument. This led to the development of Full Spectral Initiation (FSI) WFM-DOAS which generates a reference spectrum for each individual observation using the estimated properties of the atmosphere and surface at the time of the measurement [R1].

Boesch and GGRSG, with collaborators from NASA Jet Propulsion Laboratory, have developed and demonstrated the application of further advanced retrieval methods adopting optimal estimation techniques to GHG retrievals from satellites **[**e.g. R2]. A critical step was the application to the first dedicated GHG satellite GOSAT and to show the feasibility of space-borne GHG observations with an agreement of better than 0.25% against reference measurements [R3]. Implicitly, this research has been crucial in overcoming the technical and scientific challenges and in characterising and understanding the retrieval uncertainties in remote sensing of GHGs which led to the development of new techniques for GHG data analysis from satellites with improved accuracy and significantly reduced errors [R3, R4]. These datasets are now underpinning major initiatives such as the European Space Agency’s Climate Change Initiative (http://www.esa\-ghg\-cci.org/\) and the Copernicus Climate Change Service ( https://cds.climate.copernicus.eu/#!/home) [R5] and national programmes such as the NERC GAUGE (Greenhouse gAs Uk and Global Emissions) and NERC MOYA (Methane Observations and Yearly Assessments) projects. Collaborative research within the National Centre for Earth Observation (with Uni. Edinburgh) and with Uni. Bristol and LSCE, France, has shown the robustness and consistency of the techniques for surface fluxes which have been significant research challenges in evaluating carbon budgets [R6]. The success of these research techniques has facilitated the first country-scale (India) verification of methane emissions from space [R7] and also means that GHG satellite instruments are now being designed with much more confidence than a decade ago.

The group’s expertise is recognised internationally and their input valued highly. For example, since 2011, Boesch has been a member of the European Space Agency (ESA) Mission Advisory Group (MAG), providing scientific advice for the ESA Earth Explorer 8, CarbonSat and in 2018 for the Copernicus Anthropogenic CO2 Monitoring CO2M missions. In these roles, he directly provides scientific advice to ESA for the development of missionsThe CO2M activities are directly linked with the recent increase in ESA subscriptions to fund satellites to enable the Copernicus CO2 Monitoring Service. GGRSG expertise is also crucial in the development of the first-ever European CO2 Monitoring satellite mission, the joint CNES/UKSA satellite, MicroCarb: Boesch is a member of the Microcarb Science team.

3. References to the research

R1. Barkley, M. P., Frieß, U., and Monks, P. S. ‘Measuring atmospheric CO2 from space using Full Spectral Initiation (FSI)’ WFM-DOAS, Atmos. Chem. Phys., 6, 3517-3534, https://doi.org/10.5194/acp\-6\-3517\-2006, 2006.

R2. Boesch, H.; Baker, D.; Connor, B.; Crisp, D.; Miller, C. Global Characterization of CO2 Column Retrievals from Shortwave-Infrared Satellite Observations of the Orbiting Carbon Observatory-2 Mission. Remote Sens., 3, 270-304, 2011.

R3. Cogan, A. J., H. Boesch, R. J. Parker, L. Feng, P. I. Palmer, J.‐F. L. Blavier, N. M. Deutscher R. Macatangay, J. Notholt, C. Roehl, T. W arneke, D. Wunch, ‘Atmospheric carbon dioxide retrieved from the Greenhouse gases Observing SATellite (GOSAT): Comparison with ground‐based TCCON observations and GEOS‐Chem model calculations’, J. Geophys. Res., 117, D21301, doi:10.1029/2012JD018087, 2012.

R4. Connor, B., Bösch, H., McDuffie, J., Taylor, T., Fu, D., Frankenberg, C., O'Dell, C., Payne, V. H., Gunson, M., Pollock, R., Hobbs, J., Oyafuso, F., and Jiang, Y.: Quantification of uncertainties in OCO-2 measurements of XCO2: simulations and linear error analysis, Atmos. Meas. Tech., 9, 5227–5238, https://doi.org/10.5194/amt\-9\-5227\-2016, 2016.

R5. Buchwitz M, Reuter M, Schneising O, Boesch H, Guerlet S, Dils B, Aben I, Armante R, Bergamaschi P, Blumenstock T, et al., The Greenhouse Gas Climate Change Initiative (GHG-CCI): Comparison and quality assessment of near-surface-sensitive satellite-derived global CO2 and CH4 data sets. Remote Sensing of Environment 162:344-362 01 Jun 2015.

R6. Chevallier, F., P. I. Palmer, L. Feng , H. Boesch, C. W. O’Dell, and P. Bousquet, Towards robust and consistent regional CO2 flux estimates from in situ and spaceborne measurements of atmospheric CO2, Geophys. Res. Lett., 41, 1065–1070, doi:10.1002/2013GL058772, 2014.

R7. Ganesan, A.L., Rigby, M., Lunt, M.F. R. J. Parker, H. Boesch, N. Goulding, T. Umezawa, A. Zahn, A. Chatterjee, R. G. Prinn, Y. K. Tiwari, M. van der Schoot, Paul B. Krummel ‘Atmospheric observations show accurate reporting and little growth in India’s methane emissions’. Nat Commun 8, 836, doi:10.1038/s41467-017-00994-7, 2017.

4. Details of the impact

On June 27th 2019 the UK became the first major economy in the world to make a legislative commitment to achieving net zero GHG emissions by 2050. This builds on the global objectives outlined in the 2015 Paris Agreement to limit global warming to well below 2°C compared to pre-industrial levels. Success in demonstrating these commitments is dependent upon the ability of governments to measure and monitor GHG emissions.

The first dedicated European GHG Mission: MicroCarb

GGRSG research directly affected the UK Space Agency’s decision to invest into the MicroCarb mission. MicroCarb will be the first dedicated European CO2 satellite, due to launch in 2022. The mission will allow scientists to track the exchange of carbon between the surface and atmosphere, necessary to understand the response of natural carbon pools to climate change and quantify human CO2 emissions. MicroCarb will also have capability for a ‘City Mapping Mode’ with higher resolution [E1]. MicroCarb represents an important step towards a longer-term operational European monitoring system coordinated by the Copernicus program, and it is demonstrating the UK’s commitment to tackling climate change by integrating UK science and engineering communities [E2].

The results of GGRSGC research have demonstrated the importance of rigorous, scientifically-based algorithms, quality calibration, and capable data processing for successful CO2 measurements with the accuracy needed for operational monitoring. As stated by the UK Space Agency’s Head of Earth Observation and Climate: “ the scientific work by NCEO [at UoL and Edinburgh] researchers has shown to the UK Space Agency that satellite observations of CO2 and CH4 have now reached a sufficiently high level of maturity’ and that ‘based on the scientific work carried out by NCEO, UKSA is now convinced that space based GHG monitoring capability is a high priority for the UK” [E3] . As an immediate step, the UK government (BEIS via the UK Space Agency), made the strategic decision to invest GBP10,000,000 into the MicroCarb mission to ensure the UK was fully involved in CO2 measuring missions. The long term need for climate security meant it was vital that industry undertook key roles and that investment built on the UK space sector commitment to climate data from space for climate services as a growth area for industry [E3, E4]. As stated in [E3], this “decision to invest in the MicroCarb mission has been a direct result of research carried out by NCEO [at UoL and Edinburgh] as part of the ‘Bilateral Carbon Mission’ Study and the associated business case” . The study has been led by Boesch who also developed substantial parts of the business case submitted by UK Space Agency to the Treasury [E4, E5].

The investment into MicroCarb has directly contributed to the growth of the space sector in the UK in key priority areas including ground segment, information services and ground calibration. UK companies involved in MicroCarb include world leaders in space systems design Thales Alenia, aerospace technology solutions company GMV UK, global leaders in measurement solutions the National Physical Laboratory and Research and Development company RAL Space [E1]. Thales Alenia, a key partner in project delivery, emphasised the importance of the project, saying that MicroCarb will be “Ultimately helping decision makers to develop the best policies to make the world a better place” [E6].

Driving European climate change commitments

The work of GRSG has resulted in decisions far beyond the immediate collaboration on MicroCarb. ESA was given the go ahead in 2019 by the ESA Council of Ministers, including the UK, to build two operational CO2 monitoring missions (CO2M) to be launched under the Copernicus Programme [E7]. The UK increased its contribution by an additional £200 million to the ESA Earth Observation programme [E3]. As stated in [E3], ‘this decision was driven by a strong commitment to monitoring climate from space including the future space-based CO2 monitoring system of the Copernicus program (CO2M) informed by knowledge from the research carried out by NCEO [at UoL and Edinburgh]’.

CO2M provides a unique and independent source of information for policy makers to assess the effectiveness of policy measures aimed at climate change mitigation and to track their impact towards the goals of the Paris Agreement. According to the Head of the Copernicus Unit at the European Commission, CO2M “ is the largest environmental space programme ever designed in Europe to monitor our dynamic Earth. This CO2 initiative constitutes a significant positive step towards climate change mitigation and will further consolidate Europe’s leading position on the global stage in this policy field of utmost and critical importance for mankind” [E8].

The work carried out by GGRSG and international collaborators has given UK and European governments the confidence to invest in an operational monitoring system [R2, R3, R4]. The cumulative scientific work of GGRSG led by Boesch, has “demonstrated to ESA that satellite observations of CO2 and CH4 have reached a sufficiently high level of maturity to be implemented as satellite instrument, as evidenced in many peer-reviewed publications” [E9].

Building on extensive work by Boesch on earlier missions [ E10, E11], Boesch has helped to advance the fundamental methods on CO2 remote sensing to the level required for CO2M. Through ESA projects, Boesch’s GGRSG team has provided key insights into instrumental and retrieval uncertainties and how they impact the mission performance. As stated by ESA: “ Boesch’s outstanding contributions significantly supported the identification and formulation of specific mission requirements for observing greenhouse gases and the science studies provided ESA with the required detailed justification” [E9].

The decision for CO2M has also had a significant economic impact. The contract for the build of the first two satellites has been signed between ESA and the consortium lead OHB, Germany, with a total contract value of EUR445,000,000 [E12]. UK space industry (Thales Alenia Space) has been contracted to develop payload components worth EUR42,000,000. The design of the spacecraft build by industry is directly dictated by the ESA Mission Requirements Document (MRD) which formulates and justifies the specific mission requirements for CO2M [E13]. The work of GGRSG has significantly contributed to the formulation of the MRD and Boesch, as a member of the international CO2M Mission Advisory Group, drafted, reviewed and endorsed the MRD [E11].

Through direct collaboration with EUMETSAT, the European operational satellite agency for monitoring weather, climate and the environment from space, Boesch’s research has also influenced the design and architecture of the operational CO2M processing ground-segment [E14] that will generate the primary operational data stream of the CO2 monitoring service.

5. Sources to corroborate the impact

E1. Space4climate Webpage: http://www.space4climate.com/microcarb-satellite/

E2. UK Space Agency, Press Release, 2017.

https://www.gov.uk/government/news/uk-space-agency-and-cnes-join-forces-to-curb-climate-change

E3. Testimony: Head of Earth Observation and Climate, UKSA.

E4. MicroCarb Business Case “The Bilateral Carbon Mission, Supporting the Business Case, Version 5.2” CONFIDENTIAL.

E5. Final Report, UKSA Bilateral Carbon Mission Project.

E6. UK Space Agency, Press Release, 2017.

https://www.gov.uk/government/news/thales-alenia-space-signs-contract-with-the-uk-space-agency-to-work-on-climate-change-mission

E7. BBC news article: https://www.bbc.co.uk/news/science-environment-50594831

E8. Copernicus, Press Release, 2018 ‘Helping countries verify their CO2 emission reductions’. Article covering CO2M Mission

E9. Testimony:CO2M Mission Scientist, Head of Atmospheric Section, ESA.

E10. CarbonSat Mission Selection Report, available from: https://esamultimedia.esa.int/docs/EarthObservation/SP1330-1_CarbonSat.pdf

E11. Algorithm Theoretical Basis Documents ATBD for the NASA OCO-2 mission, available from: https://disc.gsfc.nasa.gov/information/documents?title=OCO-2%20Documents

E12. OHB Press Release, 2020.

https://www.ohb.de/en/news/2020/ohb-and-esa-sign-contract-for-copernicus-atmospheric-co2-monitoring-mission

E13. Copernicus CO2M Mission Requirements Document

E14. Testimony from Greenhouse Gas and CO2M project scientist and Head of Remote Sensing and Products Division, EUMETSAT.

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