3-6翻譯

原文:
We are altering the carbon cycle,adding large amounts of carbon dioxide to the atmosphere by burning fossil fuels and clearing photosynthesizing vegetation in forests and grasslands faster than they are replenished(red arrows in Figure 3-19).There is considerable evidence that CO2 emissions from these human activities play an important role in the current warming of the atmosphere,and they are likely to play an increasing role during your lifetime.Projected global warming during this century could disrupt global food production and wildlife habitats,alter temperatue and precipitation patterns, and raise the average sea level in various parts of the world.


翻譯:
我們正在改變碳循環，因為燃燒化石燃料及除去在森林和草地中會起光合作用的植物速度快過這些被補充的速度，而增加大量的二氧化碳到大氣層中。這裡有相當多從現今地球暖化中人類活動所扮演的重要角色而排放CO2的證據，並且CO2可能在你的生命中扮演逐漸增加的角色。
全球暖化會在世界各地擾亂全球食物的產量及野生棲息地，改變溫度和降水的形式，並且提高海平面。