In the past, rising atmospheric carbon dioxide and higher temperatures actually drove the evolution of far greater Numbers of new rainforest plant species than were wiped out.

过去，大气中的二氧化碳的增加和提高的温度实际驱动产生了更多新植物物种，其数量远远大于灭绝的物种数量。

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In the history of biological and geochemical evolution, oxygen rise is a critical event. Some crucial evolutionary steps were linked to the elevated atmospheric oxygen.

在生物和地球化学进化史上，氧气的出现是一个关键的历史事件，代谢方式的改变直接促进了高等生命的进化。

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