2007年末,大豆和牛肉价格出现短期攀升,树木的砍伐燃烧再次突然加重。
When soya and beef prices briefly began to climb at the end of 2007 there was a renewed spurt of hacking and burning.
虽然太阳活动降低了,但是我们燃烧化石燃料和砍伐树木引起了CO2的快速升高。
This small weakening of the sun, however, has been outpaced by the rapid increase in CO2 levels from all our fossil fuel burning and tree-cutting.
虽然太阳活动降低了,但是我们燃烧化石燃料和砍伐树木引起了CO2的快速升高。
This small weakening of the sun, however, has been outpaced by the rapid increase in CO2 levels from all our fossil fuel burning and tree-cutting.
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