The biosphere's self-renewal machinery is slowing while its temperature accelerates

A major global study found that species turnover has slowed by approximately one-third since the 1970s. This is not species loss — it is the slowing of species replacement. The natural machinery by which ecosystems renew themselves is stalling. The background hum of biological creativity — new species filling niches, old assemblages reshuffling — is quietening. Simultaneously: Arctic sea ice below last year's record low maximum. Hong Kong's warmest winter since 1884. The US winter set a new rec ...