The bonds that hold nature together may be at risk of unraveling from deforestation, overfishing, development, and other human activities, a landmark United Nations report warns. Thanks to human pressures, one million species may be pushed to extinction in the next few years, with serious consequences for human beings as well as the rest of life on Earth.

“The evidence is crystal clear: Nature is in trouble. Therefore we are in trouble,” said Sandra Díaz, one of the co-chairs of the Global Assessment Report on Biodiversity and Ecosystem Services. A 40-page “Summary for Policy Makers” of the forthcoming full report (expected to exceed 1,500 pages) was released May 6 in Paris.

Based on a review of about 15,000 scientific and government sources