Climate change as a reason to ship money for the developing world is not a new idea

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The CIA report says the changes will mean India will suffer a major drought every four years, resulting in the possible starvation of 150 million people.

China will suffer major famine in five-yearly cycles and Russia will lose one million tons in grain production.

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A former Pentagon research consultant, Mr Lowell Ponte, yesterday criticised the report for overlooking the possibility of nuclear blackmail by hungry nations.