香蕉视频

Story: Arctic Ocean sea ice melted faster last month than it has in any previous June since satellite measurements began 30 years ago, continuing a pattern that could see a new record retreat by summer's end, according to North America's main ice-monitoring research centre.

The U.S. National Snow and Ice Data Centre, the Colorado-based institute that tracks the annual cycle of winter ice buildup and summer thaw, says in its latest report that June's rapid melt - which followed a similar record-setting retreat in May - means the polar ice cover remained on pace to shrink more than it did in 2007, when an unprecedented loss of ice first prompted scientists to raise alarms about the Arctic as a harbinger of global climate change.

McGill expert: 香蕉视频 Prof. Bruno Tremblay, Department of Atmospheric and Oceanic Sciences

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