News / Africa

Extreme Weather Intensifies International Food Crises

Experts say climate change could break Africa’s agricultural backbone

Darren Taylor

This is Part 2 of a 5-part series:   Climate Change
Continue to Parts: 1 / 2 / 3 / 4 / 5

One of the world’s eminent environmental scientists says modern agriculture has evolved over an 11,000 year period of “rather remarkable” climate stability.

“Agriculture as we know it today is designed to maximize production with that climate system,” said Lester Brown, a former farmer and founder of the Earth Policy Institute in Washington, DC.

Brown, a recipient of the United Nations Environment Prize, added, “But that climate system is no more. The earth’s climate system is now changing. And with each passing year, the climate system and the agricultural system are more and more out of sync with each other…making it more difficult for farmers to expand production fast enough to keep up with (world) demand (for food).”

A woman holds bags of rice at a market in Abidjan. Some economists say food scarcity and rising prices could lead to social instability.
A woman holds bags of rice at a market in Abidjan. Some economists say food scarcity and rising prices could lead to social instability.

The UN Food and Agriculture Organization (FAO) estimated that food production must be boosted by 70 percent by 2050 to meet growing demand.

But across the globe, and especially in Africa, there are “serious drops” in food output because of increases in the volume and intensity of heat waves, droughts and floods, explained Tanzanian agricultural economist Ephraim Nkonya.

Sir Gordon Conway, professor of international development at Imperial College in London, said more extreme weather events will happen in Africa because of climate change.

“You’ll get big droughts and big floods in many countries. Often a country will have both more droughts and more floods at the same time,” predicted the former chief scientist at Britain’s Department for International Development.

Environmental experts say the extreme weather events are exacerbated by global warming, principally caused by harmful gas emissions, such as carbon dioxide, from the burning of coal for energy.

It could ‘bring down civilization’

Brown has estimated that for every one degree C increase in temperature, yields of staple grains will drop by 10 percent. Large parts of Africa could warm by four degrees C by 2100, according to the Intergovernmental Panel on Climate Change.

Conway warned that famine in Africa could spike dramatically in the near future as a result of more droughts, desertification and dwindling water supplies. Resulting reductions in crop yields, he said, could be as much as 50 percent by 2020 and 90 percent by 2100.

“There are now more very dry spells in parts of Africa in the main cropping seasons, compounded by more days over 30 degrees C. The more days over 30 degrees, the greater will be the reduction in yields.”

Nkonya said, “Less food on world markets will mean that food will be more expensive and this scenario is already unfolding.” The economist analyzes the effects of climate change on agriculture and food production in Africa for the International Food Policy Research Institute (IFPRI).

Nkonya said higher food prices are leading to “more social instability” everywhere. “This we have seen from riots against more expensive food, including in African nations,” such as Algeria, Egypt, Nigeria and Senegal. He added, “These could soon become more widespread across Africa.”

Brown, whom the Washington Post has described as “one of the world’s most influential thinkers,” said the potential for food crises in poor countries is “the biggest threat to global stability” and one that could “bring down civilization.”

Face of African agriculture transformed

Nkonya said climate change would be particularly bad for African agriculture because the continent is almost completely reliant on rain, not controlled irrigation, to grow food.

He pointed out that Africa is also especially vulnerable to more intense droughts and floods as about 70 percent of its population “survives by farming” and a third of the region’s income is generated by agriculture.

“If agriculture collapses, Africa collapses,” said Nkonya. He said future dry conditions could lead to “considerable” decreases in outputs of two of Africa’s staple foods, maize and rice, as these crops need a lot of water to grow.

Spreading dryness would increase hunger in parts of Africa that depend on maize and rice, two crops that depend on plentiful rainfall.
Spreading dryness would increase hunger in parts of Africa that depend on maize and rice, two crops that depend on plentiful rainfall.

In some areas where maize now thrives, Nkonya predicted, its cultivation will be “impossible” because of sustained dry conditions. He suggested that higher temperatures could soon change the face of African food production, with a corresponding transformation of continental diets. Farmers, he said, will be forced to switch to crops that can grow in dry areas, such as cassava and millet.

Nkonya said hotter weather will boost numbers and varieties of pests and crop diseases. He added, “Because most African farmers don’t have the technical capacity to combat this, either with pesticides or with crops resistant to pests, food production will decrease.”

‘Governments will fall’

According to the FAO, just three crops – rice, maize and wheat – provide 60 percent of the world’s food. But Brown expects potentially disastrous decreases in their production because of climate change. “It’s already happening,” he said, citing recent examples from around the world.

“Last year, because of the intense heat and drought in western Russia, the Russian grain harvest dropped from roughly 100 million tons to 60 million tons,” Brown explained. “That severely reduced world grain stocks. It led to dramatic rises in grain prices and in food prices everywhere.”

Scientists say a one meter rise in sea level would cover a large part of the Mekong Delta, the heart of Vietnam's rice industry.
Scientists say a one meter rise in sea level would cover a large part of the Mekong Delta, the heart of Vietnam's rice industry.

Then, earlier this year, the world food supply suffered a further blow when severe heat and drought struck in the U.S., the world’s leading grain producer.

“So once again this year we’re going to see a reduction in world grain stocks, and grain prices are going to continue high and could go higher and food prices are the highest on record,” said Brown. “We may now be in a situation of chronic shortages and high and rising food prices.”

If this is so, the scientist said, it is “very bad news” for the world. “It’s going to create more and more political instability in the world and there’ll be more and more failing states,” he maintained.

Brown said it is “scary” but feasible to imagine a heat wave on the same scale as the Russian event striking the U.S., which grows more than 40 percent of the world’s grain, in the near future. If this happened, he said, the implications would be dire.

“That would have been an extraordinary shock to the world grain market. We would have seen grain prices climbing to levels we’ve never imagined before. In many of the lower income grain importing countries, they simply would not have been able to import enough grain for their people,” Brown explained.

If there are big crop failures in top food producers such as the U.S., China and Europe, he said it will lead to “violent food riots in country after country” and “governments will literally fall.”

Greatest threat to global food security

Brown also warned that the world “could pay the price” for not giving enough attention to the “very real” potential of a catastrophic food crisis in Asia as a direct result of climate change.

He said warmer temperatures in the region mean that glaciers, especially in the Himalayas and on the Tibetan Plateau, are melting and “shrinking significantly” and that some smaller glaciers have already disappeared.

Brown explained, “It is the ice melts from these glaciers that help sustain the major rivers of Asia during dry seasons and the irrigation systems dependent on those rivers. If the glaciers disappear, so will wheat and rice production in Asia.”

Kenya's Turkana region shows effects of severe drought affecting Horn of Africa,
Kenya's Turkana region shows effects of severe drought affecting Horn of Africa,

China and India are the world’s top producers of wheat and rice. “Therefore, the melting of these glaciers (in Asia) coupled with the depletion of aquifers present the most massive threat to food security the world has ever faced,” said Brown.

He added, “I don’t think that many people have a clue of just what a disaster the melting of glaciers on the Tibetan plateau alone would be. It could shrink the grain harvest in China and thus lead the Chinese into the world grain market to buy large quantities of grain, competing with consumers around the world for the global grain harvest, driving up world food prices.”

As a result, he suggested, people especially in developing countries would suffer, starve and die.

Sea level danger

Brown said the possibility of a significant rise in sea level because of warmer temperatures melting ice in polar regions represented another challenge to world food security, especially in Africa.

“Even a one meter rise in sea level would create immense problems in the world, including in Asia,” he stated. “It would inundate large parts of the rice-growing river deltas.”

According to a World Bank study, a one meter increase would cover a large part of the Mekong Delta, the heart of the rice industry in Vietnam, which is the second largest rice exporter worldwide.

While China and India produce the most rice, they use it to feed their domestic populations and export comparatively little.

Thailand has long been the largest rice exporter. But recent floods, worsened by the effects of climate change, say environmentalists, have destroyed its rice crops. This has sparked price increases all over the world, and has ensured that many poorer people can’t afford the more expensive rice.

For millions of Africans, rice is a staple food. Africa is the second largest regional importer of rice in the world. South Africa, Nigeria, Senegal and Ivory Coast are all among the world’s leading importers of rice.

New technologies

Top scientist Gordon Conway is convinced that new technologies, such as genetic modification of seeds to make them drought tolerant, must be the most important part of Africa’s strategy to combat climate change and its threat to the continent’s ability to grow food.

However, IFPRI’s Ephraim Nkonya said there’s little indication that the necessary investments are being made in new advances in agricultural research in Africa at the moment. “Adaptation to climate change, for example using crop varieties that are adapted to drought – the adoption rate (in Africa) is very low,” the agricultural economist pointed out.

Nkonya said the new technologies are currently too expensive for Africa.

Peter Holmgren, an agricultural scientist and director of a division of the FAO concerned with climate change, is more optimistic. He said the phenomenon is an opportunity for the world to improve its methods of producing food.

“I think there is a great potential to achieve better, more productive, smarter agriculture in many places,” he said. “We are on the path to investing in agriculture that looks at both improved productivity and income to farmers and at the same time offers more resilience to fluctuations in prices as well as to weather conditions.”

But Nkonya said this path is still a long way off, especially for Africa. He added, “The problem is that the effects of climate change, like droughts and floods, that harm food production are already here, and there is no sign of the funding or the political will that’s needed to boost agriculture in Africa.”

You May Like

China May Be Biggest Winner From Ukraine Crisis

Missile sales, oil and gas shipments are among many areas that may drive Beijing and Moscow closer together in coming years More

Obama Faces Chaotic World, Limits of Power

Current foreign policy issues bring into focus challenges for US policymakers who are mindful of Americans' waning appetite for overseas military engagements More

SADC Meeting Lesotho Officials to Resolve Stalemate

Official says regional bloc has been engaged with leaders in Lesotho to resolve political disagreement that led to coup attempt More

This forum has been closed.
Comments
     
There are no comments in this forum. Be first and add one

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
West Africa Ebola Vaccine Trials Possible by Early 2015i
X
Carol Pearson
August 30, 2014 7:14 PM
A U.S. health agency is speeding up clinical trials of a possible vaccine against the deadly Ebola virus that so far has killed more than 1,500 people in West Africa. If successful, the next step would be a larger trial in countries where the outbreak is occurring. VOA's Carol Pearson has more.
Video

Video West Africa Ebola Vaccine Trials Possible by Early 2015

A U.S. health agency is speeding up clinical trials of a possible vaccine against the deadly Ebola virus that so far has killed more than 1,500 people in West Africa. If successful, the next step would be a larger trial in countries where the outbreak is occurring. VOA's Carol Pearson has more.
Video

Video Survivors Commemorate 70th Anniversary of Nazi Liquidation of Jewish Ghetto

When the German Nazi army occupied the Polish city of Lodz in 1939, it marked the beginning of a long nightmare for the Jewish community that once made up one third of the population. Roughly 200,000 people were forced into the Lodz Ghetto. Less than 7,000 survived. As VOA’s Kane Farabaugh reports, some survivors gathered at the Union League Club in Chicago on the 70th anniversary of the liquidation of the Lodz Ghetto to remember those who suffered at the hands of the Nazi regime.
Video

Video Cost to Raise Child in US Continues to Rise

The cost of raising a child in the United States continues to rise. In its latest annual report, the U.S. Department of Agriculture says middle income families with a child born in 2013 can expect to spend more than $240,000 before that child turns 18. And sending that child to college more than doubles that amount. VOA’s Deborah Block visited with a couple with one child in Alexandria, Virginia, to learn if the report reflects their lifestyle.
Video

Video Chaotic Afghan Vote Recount Threatens Nation’s Future

Afghanistan’s troubled presidential election continues to be rocked by turmoil as an audit of the ballots drags on. The U.N. says the recount will not be completed before September 10. Observers say repeated disputes and delays are threatening the orderly transfer of power and could have dangerous consequences. VOA correspondent Meredith Buel reports.
Video

Video Ukraine Battles Pro-Russia Rebel Assault

After NATO concluded an emergency meeting to discuss the crisis in eastern Ukraine, the country is struggling to contain heavy fighting near the strategic port of Mariupol, on the Azov Sea. Separatist rebels are trying to capture the city, allegedly with Russian military help, and Ukraine's defense forces are digging in. VOA's Daniel Schearf spoke with analysts about what lies ahead for Ukraine.
Video

Video Growing Business Offers Paint with a Twist of Wine

Two New Orleans area women started a small business seven years ago with one thing in mind: to help their neighbors relieve the stress of coping with a hurricane's aftermath. Today their business, which pairs painting and a little bit of wine, has become one of the fastest growing franchises across the U.S. VOA’s June Soh met the entrepreneurs at their newest franchise location in the Washington suburbs.
Video

Video Ebola Vaccine Trials To Begin Next Week

The National Institutes of Health says it is launching early stage trials of a vaccine to prevent the Ebola virus, which has infected or killed thousands of people across West Africa. The World Health Organization says Ebola could infect more than 20,000 people across the region by the time the outbreak is over. The epidemic has health experts and governments scrambling to prevent more people from becoming infected. Zlatica Hoke has more.
Video

Video Asian Bacteria Threatens Florida Orange Trees

Florida's citrus fruit industry is facing a serious threat from a bacteria carried by the Asian insect called psyllid. The widespread infestation again highlights the danger of transferring non-native species to American soil. VOA’s George Putic reports.
Video

Video Aging Will Reduce Economic Growth Worldwide in Coming Decades

The world is getting older, fast. And as more people retire each year, fewer working-age people will be there to replace them. Bond rating agency Moody’s says that will lead to a decline in household savings; reducing global investments - which in turn, will lead to slower economic growth around the world. But experts say it’s not too late to mitigate the economic impact of the world’s aging populations. Mil Arcega has more.
Video

Video Is West Doing Enough to Tackle Islamic State?

U.S. President Barack Obama has ruled out sending ground troops to Iraq to fight militants of the so-called Islamic State, or ISIS, despite officials in Washington describing the extremist group as the biggest threat the United States has faced in years. Henry Ridgwell reports from London on the growing uncertainty over whether the West’s response to ISIS will be enough to defeat the terrorist threat.
Video

Video Coalition to Fight Islamic State Could Reward Assad

The United States along with European and Mideast allies are considering a broader assault against Islamic State fighters who have spread from Syria into Iraq and risk further destabilizing an already troubled region. But as VOA State Department Correspondent Scott Stearns reports, confronting those militants could end up helping the embattled Syrian President Bashar al-Assad.
Video

Video Made in America Socks Get Toehold in Online Fashion Market

Three young entrepreneurs are hoping to revolutionize the high-end sock industry by introducing all-American creations of their own. And they’re doing most of it the old-fashioned way. VOA’s Julie Taboh recently caught up with them to learn what goes into making their one-of-a-kind socks.
Video

Video Americans, Ex-Pats Send Relief Supplies to West Africa

Health organizations from around the world are sending supplies and specialists to the West African countries that are dealing with the worst Ebola outbreak in history. On a smaller scale, ordinary Americans and African expatriates living in the United States are doing the same. VOA's Carol Pearson reports.

AppleAndroid