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| Climate change: How a warming world is a threat to our food supplies |
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 When the Tunisian street vendor, Mohamed Bouazizi, set himself on fire on 17 December 2010, it was in protest at heavy-handed treatment and harassment in the province where he lived. But a host of new studies suggest that a major factor in the subsequent uprisings, which became known as the Arab spring, was food insecurity.
Drought, rocketing bread prices, food and water shortages have all blighted parts of the Middle East.
Analysts at the Center for American Progress in Washington say a combination of food shortages and other environmental factors exacerbated the already tense politics of the region.
As the Observer reports today, an as-yet unpublished U.S. government study indicates that the world needs to prepare for much more of the same, as food prices spiral and longstanding agricultural practices are disrupted by climate change.
"We should expect much more political destabilization of countries as it bites," says Richard Choularton, a policy officer in the UN's World Food Program climate change office. "What is different now from 20 years ago is that far more people are living in places with a higher climatic risk; 650 million people now live in arid or semi-arid areas where floods and droughts and price shocks are expected to have the most impact.
The "recent crises in the Horn of Africa and Sahel may be becoming the new normal. Droughts are expected to become more frequent.
Growing humanitarian disaster
Studies suggest anything up to 200 million more food-insecure people by 2050 or an additional 24 million malnourished children. In parts of Africa we already have a protracted and growing humanitarian disaster. Climate change is a creeping disaster," he said.
The Mary Robinson climate justice foundation is hosting a major conference in Dublin this week. Research to be presented there will say that rising incomes and growth in the global population, expected to create 2 billion more mouths to feed by 2050, will drive food prices higher by 40-50%.
Climate change may add a further 50% to maize prices and slightly less to wheat, rice and oil seeds.
"We know population will grow and incomes increase, but also that temperatures will rise and rainfall patterns will change. We must prepare today for higher temperatures in all sectors," said Gerald Nelson, a senior economist with the International Food Policy Research Institute in Washington.
All of the studies suggest the worst impacts will be felt by the poorest people. Robinson, the former Irish president, said: "Climate change is already having a domino effect on food and nutritional security for the world's poorest and most vulnerable people.
Child malnutrition is predicted to increase by 20% by 2050.
Climate change impacts will disproportionately fall on people living in tropical regions, and particularly on the most vulnerable and marginalized population groups.
This is the injustice of climate change – the worst of the impacts are felt by those who contributed least to causing the problem."
But from Europe to the U.S. to Asia, no population will remain insulated from the huge changes in food production that the rest of the century will bring.
Frank Rijsberman, head of the world's leading Cgiar crop research stations, said: "There's a lot of complacency in rich countries about climate change. We must understand that instability is inevitable. We already see a lot of refugees. Perhaps if a lot of people come over on boats to Europe or the U.S. that would wake them up."
(Source: The Guardian)
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