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

Video Positive Messaging Helps Revamp Ethiopia's Image

In country once connected with war, poverty, famine, headlines now focus on fast-growing economy, diplomatic reputation More

Russian Activist Thinks Kremlin Ordered Nemtsov's Death

Alexei Navalny says comments of Russian liberals who think government wasn't involved are 'nonsense.' More

Video Land Disputes Rise Amid Uganda Oil Boom

Investors appear to be cashing in by selling parcels of land to multiple buyers 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.
Positive Messaging Transforms Ethiopia's Imagei
X
Marthe van der Wolf
March 03, 2015 9:03 PM
Ethiopia was once known for famine and droughts. Now, headlines more often point to its fast-growing economy and its emergence as a regional peacemaker. How has Addis Ababa changed the narrative? VOA's Marthe van der Wolf reports.
Video

Video Positive Messaging Transforms Ethiopia's Image

Ethiopia was once known for famine and droughts. Now, headlines more often point to its fast-growing economy and its emergence as a regional peacemaker. How has Addis Ababa changed the narrative? VOA's Marthe van der Wolf reports.
Video

Video Cyber War Rages Between Iran, US

A newly published report indicates Iran and the United States have increased their cyber attacks on each other, even as their top diplomats are working toward an agreement to guarantee Iran does not develop a nuclear weapon and to free Iran from international sanctions. The development is part of a growing global trend. VOA’s Al Pessin reports from London.
Video

Video Answers Elude Families of MH370 Passengers

For the families on board Malaysia Airlines flight MH370, an airline official’s statement nearly one year ago that the plane had lost contact with air traffic control at 2:40 AM is the only thing that remains confirmed. William Ide reports.
Video

Video Land Disputes Arise Amid Uganda Oil Boom

Ugandan police say there has been a sharp increase in land disputes, with 10 new cases being reported each day. The claims come amid an oil boom as investors appear to be cashing in by selling parcels of land to multiple buyers. Meanwhile, the people who have been living on the land for decades are chased away, sometimes with a heavy hand. VOA's Serginho Roosblad reports.
Video

Video In Russia, Many Doubt Opposition Leader's Killer Will Be Found

The funeral has been held in Moscow for Boris Nemtsov, the opposition leader who was assassinated late Friday just meters from the Kremlin. Nemtsov joins a growing list of outspoken critics of Russia under the leadership of President Vladimir Putin who are believed to have been murdered for their work. VOA’s Daniel Schearf reports from Moscow.
Video

Video Simulated Astronauts Get Taste of Mars, in Hawaii

For generations, people have dreamed of traveling to Mars to explore Earth's closest planetary neighbor. VOA's Mike O'Sullivan reports that while space agencies like NASA are planning manned missions to the planet, some volunteers in Hawaii are learning how humans will cope with months in isolation on a Mars base.
Video

Video Destruction of Iraq Artifacts Shocks Archaeologists

The city of Mosul was once one of the most culturally rich and religiously diverse cities in Iraq. That tradition is under attack by members of the Islamic State who have made Mosul their capital city. The Mosul Museum is the latest target of the group’s campaign of terror and destruction, and is of grave concern to archaeologists around the world. VOA’s Kane Farabaugh reports.
Video

Video Smartphones May Help in Diagnosing HIV

Diagnosing infections such as HIV requires expensive clinical tests, making the procedure too costly for many poor patients or those living in remote areas. But a new technology called lab-on-a-chip may make the tests more accessible to many. VOA’s George Putic reports.
Video

Video Afghan Refugees Complain of Harassment in Pakistan

Afghan officials have expressed concern over reports of a crackdown on Afghan refugees in Pakistan following the Peshawar school attack in December. Reports of mass arrests and police harassment coupled with fear of an uncertain future are making life difficult for a population that fled its homeland to escape war. VOA’s Ayesha Tanzeem reports from Islamabad.
Video

Video Ukrainian Volunteers Prepare to Defend Mariupol

Despite the ongoing ceasefire in Ukraine, soldiers in the city of Mariupol fear that pro-Russian separatists may be getting ready to attack. The separatists must take or encircle the city if they wish to gain land access to Crimea, which was annexed by Russia early last year. But Ukrainian forces, many of them volunteers, say they are determined to defend it. Patrick Wells reports from Mariupol.
Video

Video Moscow Restaurants Suffer in Bad Economy, Look for Opportunity

As low oil prices and Western sanctions force Russia's economy into recession, thousands of Moscow restaurants are expected to close their doors. Restaurant owners face rents tied to foreign currency, while rising food prices mean Russians are spending less when they dine out. One entrepreneur in Moscow has started a dinner kit delivery service for those who want to cook at home to save money but not skimp on quality. VOA's Daniel Schearf reports.
Video

Video Presidential Hopefuls Battle for Conservative Hearts and Minds

One after another, presumptive Republican presidential contenders auditioned for conservative support this week at the Conservative Political Action Conference held outside Washington. The rhetoric was tough as a large field of potential candidates tried to woo conservative support with red-meat attacks on President Barack Obama and Democrats in Congress. VOA Political Columnist Jim Malone takes a look.
Video

Video Southern US Cities Preserve Civil Rights Heritage to Boost Tourism

There has been a surge of interest in the American civil rights movement of the 1950s and '60s, thanks in part to the Hollywood motion picture "Selma." Five decades later, communities in the South are embracing the dark chapters of their past with hopes of luring tourism dollars. VOA's Chris Simkins reports.
Video

Video Deep Under Antarctic Ice Sheet, Life!

With the end of summer in the Southern hemisphere, the Antarctic research season is over. Scientists from Northern Illinois University are back in their laboratory after a 3-month expedition on the Ross Ice Shelf, the world’s largest floating ice sheet. As VOA’s Rosanne Skirble reports, they hope to find clues to explain the dynamics of the rapidly melting ice and its impact on sea level rise.

All About America

Circumventing Censorship

An Internet Primer for Healthy Web Habits

As surveillance and censoring technologies advance, so, too, do new tools for your computer or mobile device that help protect your privacy and break through Internet censorship.
More