Because many species need others to survive, the worst possible case for an extinction is a domino-style co-extinction effect.
因为很多物种需要其它物种才能延续下去，所以一个物种的灭绝可能导致多米诺效应。
But the first study to look into the combined effect of both global warming and deforestation found most species are in danger of extinction.
但是，通过对全球变暖和滥伐森林的共同作用的调查，首次研究便发现许多种类都濒临灭绝危险。
On the other hand, humanity's malignant effect on the environment has accelerated the rate of extinction for plants and animals, which now reaches perhaps 50,000 species a year.
从另一方面说，人类对环境的恶意影响加速了动植物的灭绝，现在每年大概有多达50,000种物种从地球上消失。
应用推荐