mongabay.com logo About  |   Contact  |  Mongabay on Facebook  |  Mongabay on Twitter  |  Free newsletter
Rainforests | Tropical fish | Environmental news | Blog | For kids | Madagascar | Photos | Non-English languages | Tropical Conservation Science
SHARE:
print


Global warming will increase likelihood of civil war in Africa by 55 percent
Jeremy Hance
mongabay.com
November 23, 2009



There have been many warnings by policymakers that rising temperatures in Africa could lead to civil conflict, however a new study in Proceedings of the National Academy of Sciences is the first to uncover empirical evidence for these warnings and quantify them. The results—that higher temperatures increased the likelihood of civil war in sub-Saharan Africa by over 50 percent—took aback even the researchers.

"We were definitely surprised that the linkages between temperature and recent conflict were so strong," Edward Miguel, professor of economics at the University of California (UC), Berkeley and faculty director of UC Berkeley's Center for Evaluation for Global Action, told his university. "But the result makes sense. The large majority of the poor in most African countries depend on agriculture for their livelihoods, and their crops are quite sensitive to small changes in temperature. So when temperatures rise, the livelihoods of many in Africa suffer greatly, and the disadvantaged become more likely to take up arms."

The researchers compared data on civil wars in sub-Saharan Africa with rainfall and temperature records. Between 1980 and 2002, civil conflict was far more likely in warmer years. The researchers found that an increase in temperature by a single degree in Celsius raised the likelihood of civil conflict by almost 50 percent.


AK-47 among other household items in a Turkana hut. The Turkana live in a hostile desert environment in Northern Kenya. Photo by Rhett A. Butler.
With this data in hand the researchers turned to the future. Using predictions of future temperature and precipitation in the region from 20 different global climate models, the researchers found that the likelihood of civil wars in sub-Saharan Africa in 2030 jumped by 55 percent. If these conflicts prove as destructive as recent ones, the death toll could be near 400,000 people.

"On average, the models suggest that temperatures over the African continent will increase by a little over 1 degree Celsius by 2030," explained David Lobell, study co-author and assistant professor of environmental earth systems science at Stanford, to UC Berkley. "Given the strong historical relationship between temperature rise and conflict, this expected future rise in temperature is enough to cause big increases in the likelihood of conflict."

Lobell added that the researchers strenuously tested their results: "no matter what we tried - different historical climate data, different climate model projections, different subsets of the conflict data - we still found the same basic result."

The researchers say that even in a warmer world there are ways to stem the likelihood of civil conflict. African farmers should be provided with drought-resistant crops, irrigation should be expanded, and farmers should have access to innovative insurance in case of crop failure, according to the study.

"Our findings provide strong impetus to ramp up investments in African adaptation to climate change by such steps as developing crop varieties less sensitive to extreme heat and promoting insurance plans to help protect farmers from adverse effects of the hotter climate," explains Marshall Burke, the study's lead author and a graduate student at the UC Berkley's Department of Agricultural and Resource Economics.

Even as the chances of a robust and binding climate agreement from the Climate Change Summit in Copenhagen appear to have stalled, the researchers say that their study should influence policy-makers at the summit.

"If the sub-Saharan climate continues to warm and little is done to help its countries better adapt to high temperatures, the human costs are likely to be staggering," warns Burke.

Civil conflict has ravaged parts of sub-Saharan Africa over the last few decades, including Rwanda, Somalia, Sierra Leone, and the Democratic Republic of Congo. According to a press release from UC Berkley, the International Rescue Committee estimates that at least 5.4 million people have died from civil war—due to violence, starvation, and disease—in the Democratic Republic of Congo in the past decade alone. The civil war in the Democratic Republic of Congo is the world's deadliest conflict since World War II.



CITATION: Marshall B. Burke, Edward Miguel, Shanker Satyanath, John A. Dykema, and David B. Lobell. Warming increases the risk of civil war in Africa. Proceedings of the National Academy of Sciences. www.pnas.org_cgi_doi_10.1073_pnas.0907998106.







Related articles

Holding the Global North Responsible for Climate Change: What Would Lord Russell Do?

(11/16/2009) If Lord Bertrand Russell were still alive today, he would most likely be appalled by the Global North’s glaring inaction on climate change. One of the twentieth century’s most eminent philosophers, Russell was also an outspoken critic of war and irrationality. In 1966, just as the United States was ramping up the war in Vietnam, Russell helped to establish a novel legal tribunal which condemned war crimes committed in South East Asia.


Nations vulnerable to global warming present demands: carbon levels below 350ppm and billions in aid

(11/10/2009) A group of nations especially vulnerable to the effects of climate change have released a declaration calling for developed countries to keep CO2 emission below 350 parts per million (ppm) and to give 1.5 percent of their gross domestic product to aid developing nations in adapting to the myriad impacts of climate change.


Climate change will challenge US military

(08/11/2009) US military intelligence analysts claim that climate change will present significant strategic issues around the world. The increased occurrences and severity of storms, droughts, resource shortages, and the spread of disease are all linked to climate change.


NASA study shows global warming will diminish rainfall in East Africa, worsening hunger

(08/06/2008) A new NASA-backed study has found a link between a warming Indian Ocean and reduced rainfall in eastern and southern Africa. The results suggest that rising sea temperatures could exacerbate food problems in some of the continent's most famine-prone regions.


Global warming to hurt agriculture in world's poorest regions

(01/31/2008) Global warming wil cause severe crop losses in some of the poorest parts of Africa and Asia by 2030, reports a study published in tomorrow's issue of the journal Science.


Past climate change triggered wars, population decline

(11/21/2007) Long-term climate change may lead to wars and population decline according to a study published in the journal Proceedings of the National Academy of Sciences (PNAS). The research looked at the cool period known as the Little Ice Age and found that the number of wars increased, famine occurred and the population declined.






CITATION:
Jeremy Hance
mongabay.com (November 23, 2009). Global warming will increase likelihood of civil war in Africa by 55 percent. http://news.mongabay.com/2009/1123-hance_civil.html


Tags:
africa dr congo democratic republic of congo Democratic Republic of the Congo congo global warming mitigation impact of climate change agriculture jeremy hance green environment Climate Modeling climate change climate change politics climate science disasters drought east africa environmental politics farming famine governance greenhouse gas emissions greenhouse gases human rights politics poverty

print



Environmental news index | RSS | News Feed | Twitter | Home


Advertisements:





Mongabay Store
Wildlife of Madagascar T-shirt
Wildlife of Madagascar T-shirt
Bold and Dangerous - Pygmy tyrant t-shirts
Bold and Dangerous - Pygmy tyrant
Love me before I'm gone - Gladiator frog t-shirts
Love me before I'm gone - Gladiator frog
Licking this frog may make you crazy t-shirts
Licking this frog may make you crazy




DON'T LIKE ADS? Become a mongabay supporter


WEEKLY NEWSLETTER
Email:


RECENT FEATURES
As Amazon deforestation falls, food production risesAs Amazon deforestation falls, food production rises
Biggest environmental news stories of 2011Biggest environmental news stories of 2011
The year in review for rainforestsThe year in review for rainforests
Our top nature pictures of 2011Our top nature pictures of 2011


POPULAR PAGES
Rainforests
Rain forests
Amazon deforestation
Deforestation
Deforestation stats
Why rainforests matter
Saving rainforests
Amazon rainforest
Congo rainforest
Deforestation data
Rainforest canopy

Special sections
New Guinea
Finding new species
Sulawesi
Madagascar
Borneo
REDD

News
Most popular articles
Worth saving?
Forest conservation
Cell phones in Africa
Seniors helping Africa
Saving orangutans in Borneo
Palm oil
Amazon palm oil
Future of the Amazon
Cane toads
Dubai environment
Investing to save rainforests
Visiting the rainforest
Biomimicry
Defaunation
Blue lizard
Extinction debate
Extinction crisis
Industrial deforestation
Save the Amazon
Rainforests & REDD
Brazil's Amazon plan
Avatar story
Amazon ranching

News topics
Amazon
Biofuels
Brazil
Carbon Finance
Conservation
Climate Change
Deforestation
Energy
Happy-upbeat
Indonesia
Interviews
Oceans
Palm oil
Rainforests
Wildlife
MORE TOPICS



Non-English Sites
Chinese
French
German
Indonesian
Italian
Portuguese
Spanish
Other languages

Nature Blog Network







Photos
Brazil photos
Brazil

China photos
China

Colombia photos
Colombia

Costa Rica photos
Costa Rica

Deforestation photos
Deforestation

Gabon photos
Gabon

India photos
India

Indonesia photos
Indonesia

Kenya photos
Kenya

Madagascar photos
Madagascar

Peru photos
Peru

Peru photos
Rainforest



ABOUT
Mongabay.com seeks to raise interest in and appreciation of wild lands and wildlife, while examining the impact of emerging trends in climate, technology, economics, and finance on conservation and development (more)

Help support mongabay.com when you buy from Amazon.com


CALENDARS



BOOKS BY MONGABAY AUTHORS
Rainforest book for kids Conservation in an age of mass extinction


FREE WEEKLY NEWSLETTER



HIGH RESOLUTION PHOTOS / PRINTS








Copyright mongabay 2010

Carbon dioxide (CO2) emissions generated from mongabay.com operations (server, data transfer, travel) are mitigated through an association with Anthrotect,
an organization working with Afro-indigenous and Embera communities to protect forests in Colombia's Darien region.
Anthrotect is protecting the habitat of mongabay's mascot: the scale-crested pygmy tyrant.