BBC NEWS | Science/Nature | US predicts polar bear meltdown

Two-thirds of the world's polar bears will be gone by the middle of the century, says a US government agency. The US Geological Survey (USGS) says parts of the Arctic are losing summer ice so fast that no bears will be able to live there within several decades. Scientists believe Arctic ice will hit a record low this year. The US government commissioned the study to assess whether polar bears shou

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"The US Geological Survey (USGS) says parts of the Arctic are losing summer ice so fast that no bears will be able to live there within several decades."