其他因素包括太阳活动，通过温暖的空气、烟尘、在亚洲化石燃料和木材燃烧产生其他粒子的变化都可以增加水汽以至变暖趋势降低。
Other factors include changes in solar activity, the increased water vapour that can be held by warmer air and soot and other particles produced by fossil fuel and wood burning in Asia.
他们试图不使用化石燃料，自己种植粮食和木材，减少废品和垃圾的产生。
They are trying to wean themselves off fossil fuels, grow their own food and timber, acquire fewer frivolous possessions and produce less waste.
煤灰有化石燃料(特别是柴油和煤碳)、木材和其他生物燃料燃烧所释放的。
Soot is released from burning fossil fuels (particularly diesel and coal), wood, and other biofuels.
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