When our Sun later became hotter, the continued removal of atmospheric carbon dioxide and methane by early bacteria kept Earth's climate from becoming too hot to sustain life.

当我们的太阳后来温度变得更高时，早期细菌持续清除大气中的二氧化碳和甲烷，使地球的气候不至于变得太热而无法维持生命的存在。

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Meanwhile, climate scientists ominously predicted more to come: The U.S. National Oceanic and Atmospheric Administration projected this fall that 2010 could be the hottest on record.

同时，气候学家不祥地预言状况还会陆续有来：美国国家海洋和大气管理局预计2010年的秋天将会是有史以来最热的。

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The effect clouds have on climate has been something of a mystery to atmospheric scientists, with some researchers hoping they would provide a silver lining by acting as a brake on climate change.

对大气科学家来说，云层对气候的影响一直有点像是个谜，一些研究人员希望云层能够成为遏制气候变化的卫士，从而给我们带来一线希望。

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Forecasters predict an above-normal Atlantic hurricane season, with 13 to 20 named storms, seven to 11 hurricanes and three to six major hurricanes, the National Oceanic and Atmospheric Administration Climate Prediction Center said.

CNN: NOAA predicts above-normal Atlantic hurricane season

The only thing we are unsure about is how long it will take for the Earth system to display those atmospheric changes as climate change phenomena.

BBC: Harrabin's Notes: Debating the IPCC

Such tree-ring records, along with other so-called proxy archives, can provide a wealth of information about volcanic events and their varying impacts around the globe because of resulting shifts in atmospheric circulation and other climate changes, dating for centuries prior to the period of instrumental record.

CNN: How volcanoes can change the world