全球暖化可能是最严重的全球性社会问题，威胁着地球上的生命。
Global warming may be the most serious global social problem threatening life on Earth.
全球暖化指的是地球大气和水体平均温度的上升。
Global warming refers to the increasing average temperature of the Earth's air and water.
从2007年开始，地球一小时得到的全世界范围的支持，对抗我们的全球暖化问题。
Since 2007, Earth Hour has gained worldwide support for positive action against global warming.
科学家声称全球暖化已经逐渐对地球环境构成威胁。
Scientists claim that global warming has become a threat to earth's environment.
科学家声称全球暖化已经逐渐对地球环境构成威胁。
Scientists claim that global warming has become a threat to earth's environment.
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