World scientists’ warning of a climate emergency

Scientists have a moral obligation to clearly warn humanity of any catastrophic threat and to “tell it like it is.” On the basis of this obligation and the graphical indicators presented below, we declare, with more than 11,000 scientist signatories from around the world, clearly and unequivocally that planet Earth is facing a climate emergency.

Ripple et al, 5th November 2019: BioScience, biz088,

This paper marks 40 years since scientists from 50 nations met at the First World Climate Conference (in Geneva 1979) and agreed that alarming trends for climate change made it urgently necessary to act. They state: “An immense increase of scale in endeavours to conserve our biosphere is needed to avoid untold suffering due to the climate crisis”.

Read the scientific paper by Ripple et al, and news articles from the Guardian, BBC, Independent and other news sites.

Thomas Newsome, co-author of the paper published in Bioscience