The rate of species extinction is accelerating to dangerous levels.

物种灭绝的速度不断加快，已经敲响了警钟。

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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。

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Current extinction rate projections may be overestimating the role of habitat loss on species, a study suggest.

一项研究显示，现有物种灭绝速率预测可能高估了栖息地缺失对物种的影响。

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Some estimates suggest species extinction because of human activity is about 1,000 times faster than the natural rate of loss.

VOA: standard.2010.01.31

That made it the most valuable charity auction to support conservation projects, which is important, because as DiCaprio mentioned in his opening speech, less than 2% of philanthropic dollars globally support conservation projects, despite the fact that 140, 000 animal and plant species are becoming extinct every year, which is 10, 000 times the historic extinction rate.

FORBES: Leonardo DiCaprio's Charity Auction Raises $38M To Fund Global Conservation