Tim McDonnell
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They're known as 'climate refugees.' But there's not even an international definition for them, let alone recognition or protection.
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A new survey of baobab trees in Africa finds that many of the oldest have died or significantly deteriorated in the last decade. Scientists say climate change and human intervention could be culprits.
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Leaders in developing countries were asked to rank the U.N.'s 17 Sustainable Development Goals. One particular goal was typically at the bottom of their priority list.
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They have been working the same stretches of river for decades — but have no proof of ownership. Now technology comes to the rescue.
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Coffee is Uganda's most valuable industry, but climate change could cut production by half by 2050. Small farmers there are already feeling the effects, as they document in these photos.