Key UN biodiversity summit to open in China

A key UN summit tasked with protecting biodiversity officially opens in China and online Monday, as countries meet to tackle pollution and prevent mass extinction weeks before the COP26 climate conference.

Climate change: 6 priorities for pulling carbon out of the air

To reach net zero emissions by 2050, global emissions must be cut faster and deeper than the world has yet managed. But even then, some hard-to-treat sources of pollution—in aviation, agriculture and cement making—may ...

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