Extreme droughts and extreme floods can't both be due to climate change.

极端干旱和极端洪涝并非都源于气候变暖。

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Record droughts hit the Amazon's rain forests in 2005 and 2010. With climate models projecting more drying with global warming, researchers are keeping close watch for such extreme droughts.

创纪录的干旱在2005和2010年袭击了亚马逊热带雨林，由于气候类型随着全球变暖正变得愈加干旱，研究者们对这种极端的干旱一直进行着严密观察。

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The warming of the planet will be gradual, but the effects of extreme weather events - more storms, floods, droughts and heatwaves - will be abrupt and acutely felt.

地球变暖的过程将是缓慢的，但极端天气事件的影响—更多的暴风雨、水灾、旱灾和热浪，将是突发性的和明显的。

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Scientists warn climate change will lead to rising sea levels, more devastating floods and hurricanes, longer lasting droughts and other extreme weather phenomena.

VOA: standard.2009.08.31

Roger Johnson says the science is convincing. And he doesn't think a climate change bill would hurt farmers nearly as much as climate change will, through droughts,floods and other extreme weather.

VOA: standard.2009.12.12

At the same time, extreme droughts turned forests in Asia, the Mediterranean region, Mexico, Central America, Florida and California into tinderboxes.

CNN: Global warming may harm human health

Extreme droughts currently cover about 2% of the world's land area, and that is going to spread to about 10% by 2050.

BBC: Man with dead camel in desert. Image: Jim Loring/Tearfund

"If extreme droughts like these become more frequent, the days of the Amazon rainforest acting as a natural buffer to man-made carbon emissions may be numbered, " forest ecologist Simon Lewis, from University College London, has said.

CNN: Drought-stressed trees face race to adapt