Averting the sixth extinction

Economist: OVER THE GRAND sweep of history and geography, things have not been going well for Earth’s non-human species. Extinction rates over the past few centuries have been far higher than the background rate, and taking the world as a whole the picture over the past few decades has been looking pretty bleak. The Living Planet Index shows a 30% decline in biodiversity since 1970. Take a closer look, though, and a more optimistic account of the planet’s trajectory emerges. What limited information on extinctions......

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