In turn, they exacerbate global warming. 反过来 这些也加重了全球变暖

436. We are in the process of compromising the climatic balance...
     我们正在危及我们赖以生存了
437. That has allowed us to develop over 12,000 years.
     十二万年的气候平衡
438. More and more wild fires encroach on major cities.
     越来越多的森林大火蚕食着大城市
439. In turn, they exacerbate global warming.
     反过来 这些也加重了全球变暖
440. As the trees burn, they release carbon dioxide.
     树燃烧时释放出二氧化碳
441. The system that controls our climate has been severely disrupted.
     控制着气候的系统已经被严重破坏
442. The elements on which it relies have been disrupted.
     其依赖的成分也已被破坏

来自《家园 第二部分 Home Part2》第 439 行