Poster's note: includes an Antarctica project? Many others are proposed or
cancelled

https://www.geoengineeringmonitor.org/2021/01/geoengineering-activities-on-the-african-continent/

GEOENGINEERING ACTIVITIES ON THE AFRICAN CONTINENT
JAN 12 2021

by Anja Chalmin

The interactive geoengineering map, generated by ETC Group and the Heinrich
Böll Foundation, documents geoengineering projects and experiments
worldwide. An analysis of the data shows that on the African continent the
topic „Geoengineering“ has received little attention so far. Nevertheless,
about 70 geoengineering projects, 5 % of the total documented projects,
were executed on the African continent. The majority of these projects are
research projects and have been initiated and funded by public and private
donors from North America, Europe and Australia. Very few programs are
known to have been launched by African institutions, and very few
researchers stationed in Africa participate in geoengineering discussions.
In recent years, the number of active geoengineering projects on the
African continent has declined. In contrast, interest in African land for
geoengineering activities has grown. This article describes the various
geoengineering projects on the African continent and their backers. It also
looks at proposals from the Global North to use African territories and
resources for future large-scale geoengineering projects as well as the
risks of such projects and the risks of climate change for the African
continent.

Climate change in the African context

Africa is not a significant source of greenhouse gas emissions, but the
continent the most vulnerable to the impacts of climate change. Sub-Sahara
Africa is producing less than 4% of the global emissions and the per capita
greenhouse gas emissions in Sub-Sahara Africa are more then five times
lower compared to the emissions in the USA. Although the entire African
continent emits less carbon than the U.S. or Japan, Africa is likely to
experience the impacts of climate change sooner and more intensely than
other regions. Some African regions are already experiencing warming at
more than twice the global rate. Despite these severe consequences of the
climate crisis on the African continent, African scientists are not well
presented in the climate debate, e.g., in the four IPCC assessment reports
published between 1990 and 2007, they make up only 3.1 % of the IPCC
authors in total.

Marine geoengineering: Tanzania, Morocco and South Africa

The Climate Foundation (TCF), an US-American organization, has made two
attempts to establish artificial upwelling projects in Tanzania’s coastal
areas. The first project was announced for 2017 and planned to use
wave-powered upwelling technology along the shores of Zanzibar. The second
project aimed to establish artificial upwelling in Tanzanian marine waters
in cooperation with the Medical Care Development’s International division.
Both project proposals were cancelled, because funding could not be secured.

In 2019, the Australian Ocean Nourishment Foundation Ltd (ONF) announced
plans to fertilize the ocean in Moroccan waters and shared, that the
addition of nutrients to the ocean was discussed with local fishermen. ONF
aims to “demonstrate to the fishermen of El Jadida in Morocco the
techniques of injecting new nutrients into surface waters of the deep
oceans”. The project seems to be pending – there have been no further
reports on the progress of the project since 2019.

In 2004, the European Iron Fertilization Experiment (EIFEX) was conducted
by 53 scientists from seven European countries and South Africa. During the
experiment, 13 tons of FeSO4 have been released into the Southern Atlantic
Ocean. The experiment was led by the German Alfred Wegner Institute and
financed by the European Union.

Enhanced Weathering in Tanzania, Botswana and South Africa

The Dutch ‘The Olivine Foundation’ proposed a field trial with olivine in a
Tanzanian mining area. Olivine-rich mineral rock was to be crushed and
spread onto surrounding rice fields in order to chemically react with and
fix atmospheric CO2. The project has not been implemented, probably due to
a lack of funding.

In Botswana, the Project Minera was conducted at two diamond mines from
2015 to 2019. Both mines, Orapa in north-eastern and Jwaneng in
south-central Botswana, are owned by the De Beers Group – the world’s
largest diamond producer and trader, headquartered in London – and the
government of Botswana. Project Minera aimed to examine options to store
CO2 in kimberlite rock, a mine tailing from diamond mining. The project was
run in cooperation with scientists from five Canadian and Australian
universities and funded by the British Natural Environment Research
Council. The research programme covered laboratory trials as well as field
trials at mines in Botswana, Canada and South Africa. In South Africa, the
Venetia Mine, also owned by the De Beers Group, was chosen for the
laboratory-scale and field trials. The Minera research project was
completed in 2019.

BECCS in Tanzania, CCUS in South Africa

The Swedish ethanol company SEKAB planned to commission six larger ethanol
production facilities in the Rufiji area in Tanzania. SEKAB aimed to
capture CO2 at the plants’ smokestacks and to burry the captured CO2 in a
nearby geological formation. The project was never realized, because it was
not economically viable.

In 2017, the US-based company LanzaTech signed a Memorandum of
Understanding with the South African engineering company Swayana to
collaborate on commissioning a commercial-scale CCUS facility, in
Mpumalanga province, South Africa. The project planned to capture CO2 from
waste gases produced in the ferroalloy and titanium smelting sectors and
convert the captured CO2 into fuel ethanol. A pilot fermentation unit was
shipped to South Africa in 2017/18. The commissioning of the
commercial-scale unit was scheduled for 2020, but there are no recent
updates – the project activities seem to have ceased.

CCS in Algeria and South Africa

In 2004, a joint venture of BP, Statoil and Sonatrach, announced a Carbon
Capture and Storage (CCS) project in Algeria at industrial scale, aiming to
inject 17 million tons of CO2 in the saline Krechba Formation in central
Algeria. The CO2 was captured in the nearby In-Salah-Oil-Field. Of the 17
million tons planned, only 3.8 million tons were injected into the saline
formation. In 2011, the project was abandoned, because the storage site was
no longer considered safe, after a surface uplift over all three injection
wells had been detected. CO2-leakage from a nearby well was found too. The
United States Department of Energy (US-DOE) and the European Union
supported the project with funding.

In 2010, the South African Council for Geoscience and the Petroleum Agency
of South Africa published the “Atlas on Geological Storage of Carbon
Dioxide in South Africa” and identified approximatively 150 gigatons of
potential storage in deep saline formations, unmineable coal seams and
depleted oil and gas reservoirs. SACCCS, the South African Centre Carbon
Capture Storage, has been mandated by the South African Department of
Energy to explore the technical potential of CCS in South Africa. The
SACCCS intends to develop a full-scale CCS deployment beyond 2025. The
first CO2 injections were announced for 2017 and later-on postponed to
2020. At the time being a decision regarding the CCS project site has not
yet been taken.

DECIMALS Fund – Research on Solar Radiation Management (SRM)

Since 2011, the Solar Radiation Management Governance Initiative (SRMGI)
organized workshops on SRM, e.g., in Senegal and Kenya, with the objective
to expand the discussion on SRM around the globe. The SRMGI is coordinated
by The Royal Society (UK), Environmental Defence Fund (USA) and The World
Academy of Sciences (TWAS, Italy) and financed, inter alia, by Bill Gates’
FICER fund. In 2018, SRMGI and TWAS launched the DECIMALS Fund (Developing
Country Impacts Modelling Analysis for SRM) to support research on SRM in
the Global South. A total grant of US$ 0,43 million, provided and
administered by TWAS, was shared between eight research teams, based in
Argentina, Bangladesh, Benin, Indonesia, Iran, Ivory Coast, Jamaica, and
South Africa. The program runs for at least two years and research teams
are expected to publish their findings by the end of 2020. In South Africa,
DECIMALS is hosted by the African Climate and Development Initiative, a
university-wide initiative based at the University of Cape Town. The
researchers study the impacts of solar radiation management on droughts by
modelling climate simulations. In Ivory Coast, the researchers, hosted at
the University of Félix Houphouët-Boigny, in Abidjan, study the impacts of
SRM on West and Central Africa, by modelling the effects of SRM on
temperatures, precipitation and water resources. In Benin, researchers
study the impacts of SRM on West African rainfall, temperature and river
discharges by modelling injections of aerosols into the atmosphere. The
project is hosted at the ICMPA-UNESCO Chair (International Chair in
Mathematical Physics and Applications) and conducted in cooperation with
the University of Abomey-Calavi, in Cotonou, Benin.

Biochar

Biochar projects account for more than 50 % of the documented projects on
the African continent. The interactive geoengineering map currently
documents 37 biochar activities in various African countries. Most of these
projects (32) were completed between 2010 and 2015 and conducted within the
framework of research projects. With few exceptions, these research
projects were financed by institutions in Northern America, Europe and
Australia. The only known ongoing research project is led and financed by
the Norwegian Geotechnical Institute (NGI). The NGI program combines
laboratory work in Norway and field trials abroad, e.g., in Zambia, and
aims to investigate the potential of biochar to sequester carbon and to
improve soil quality.

The EU-funded Biochar PLUS was conducted from 2014 to  2017. This project
initiated the African Biochar Partnership in 2016. The partnership is based
in Cape Verde. The website highlights completed biochar projects, e.g., the
Biochar for Sustainable Soils (B4SS) project or Agricultural and
environmental Benefits from Biochar use in ACP Countries (BeBi) and gives
no information on new developments.

The Biochar Initiative of Nigeria (BIN) was founded in 2015 and organized
annual conferences and exchange meetings on biochar in Nigeria until 2018.
BIN didn’t report on new developments in 2019 & 2020 and its website
stopped working.

Proposals for large-scale geoengineering measures from the Global North

Scientists and companies from the Global North propose large areas of
African land for geoengineering measures, such as covering almost 20
million square kilometers of desert area with reflective plastic sheets,
aiming to reflect more sunlight back to space to lower surface
temperatures. Another proposals suggests large-scale Direct Air Capture in
combination with Carbon Storage (DACCS) in the Maghreb region of North
Africa – thus the region would bear the risks associated with the
underground “storage” of CO2. Further geoengineering proposals such as
BECCS or Biochar require large amounts of biomass and land area and could
lead to land grabbing and the cultivation of monocultures. Already now,
natural resources are being overexploited in many areas to meet the demand
for raw materials in the Global North, for example due to the export of
charcoal from Somalia. IBI, the International Biochar Initiative stated in
it’s September 2020 Newsletter that “the African region has abundant
biomass resources which are available almost throughout the year”,
proposing the use of crop residues for biochar production. The Soil Atlas
of Africa and FAO reports draw a very different picture. Many African
agricultural soils are at risk and suffer from severe degradation.
Returning sufficient biomass to such soils is an important tool to improve
soil structure, e.g., to enhance water storage capacity and nutrient
supply. A shortage of biomass through BECCS and Biochar would therefore
jeopardise the supply of food on many levels.

Countries in the Global North are also discussing the use of SRM to
mitigate climate impacts. SRM measures in the Global North may have
unintended consequences in other regions – they could lead to severe
droughts in Africa, cut monsoon rains by up to 7 %, affecting the water and
food supplies of more than two billion people. Researchers also warn that
SRM measures cannot be stopped once they are started – the so-called
‘termination effect’ would lead to a sudden warming if SRM measures were
halted.

Further Information:

Geoengineering Monitor: “What is geoengineering”,
http://www.geoengineeringmonitor.org/what-is-geoengineering/

ETC Group and Heinrich Böll Foundation, “Geoengineering Map”,
https://map.geoengineeringmonitor.org/

Posted in Africa, Carbon Dioxide Removal / Greenhouse Gas Removal, Solar
Radiation Management

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