University of Cambridge researchers have developed a new way to measure the impact of our food production on other species’ survival around the world.

It reveals that between 700 and 1,100 species of vertebrate are likely to go extinct in the next 100 years, if global land-use for agriculture does not change. This figure does not account for future population growth, and is probably a huge underestimate.

By considering the productivity of any piece of land, the team can figure out the “per kilogram impact” of each commodity per year on biodiversity.