Could biodiversity destruction lead to a global tipping point? — theguardian.com

We are destroying the world’s biodiversity. Yet debate has erupted over just what this means for the planet – and us. Just over 250 million years ago, the planet suffered what may be described as its greatest holocaust: ninety-six percent of marine genera (plural of genus) and seventy percent of land vertebrate vanished for good. Even insects suffered a mass extinction – the only time before or since. Entire classes of animals – like trilobites – went out like a match in the wind. But what’s arguably most fascinating about this event – known as the Permian-Triassic extinction or more poetically, the Great Dying – is the fact that anything survived at all. Life, it seems, is so ridiculously adaptable that not only did thousands of species make it through whatever killed off nearly everything (no one knows for certain though theories abound) but, somehow, after millions of years life even recovered and went on to write new tales. Related: Frog goes extinct, media yawns Related: Why don’t we grieve for extinct species? Continue reading...

Read More