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Climate change report highlight major impacts

31 March 2014 Last updated at 14:22 BST

The impact of climate change is being felt across all continents and oceans and it is affecting food security, glaciers and the spread of disease, according to a new report.

Scientists and officials meeting in Japan say the document is the most comprehensive assessment to date of the impacts of climate change on the world.

Roger Harrabin reports.

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