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科学家们普遍认为,为了将全球变暖升温控制在2.4℃以内,以及避免气候变化的最坏影响,到2050年,温室气体的排放必须减少50%。但是要使人类“断奶”——放弃造成温室气体排放的石油、天然气和煤,还有很长的路要走。
Scientists generally agree that by 2050 greenhouse gas emissions must be reduced by 50% in order to keep global warming under 2.4 ° C and avoid the worst effects of climate change. But for humans to “wean” - there is still a long way to go to abandon the oil, gas and coal that cause greenhouse gas emissions.