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What Are the Scientists’ Warnings to Humanity?
The Scientists’ Warning to Humanity began in 1992. These warnings provide the latest analysis and research pertaining to the climatological emergency and the sixth mass extinction event now underway.

If you are a scientist, student, or researcher, please sign the Viewpoint article “World Scientists’ Warning of a Climate Emergency” by Ripple et al., and The Alliance of World Scientists which was recently published in BioScience Magazine. AWS welcome signatures of scientists from any scientific discipline, including graduate students in the sciences.

Current Number of Signatories: 13,535 from 156 Countries
In the following introductory video, Thomas M. Newsome explains the history and portent of Scientists’ Warning to Humanity’s ‘Most Talked About Paper.’