Two degrees Celsius.
It doesn’t seem like much, but it’s the limit for global temperature increase set by policy makers. The problem? It’s not rigorous enough to protect our planet. In an editorial published today in Science Advances, scientists at Conservation International and the UN Foundation say if Earth’s temperature were to warm any more than 1.5°C, we would experience devastating losses.
The paper’s authors — Lee Hannah, Conservation International’s senior climate change scientist, and Tom Lovejoy, senior fellow at the UN Foundation — theorize that the 2.0°C target set by policy makers is not enough to stop effects of warming, such as loss of coral reefs, destruction of forests, an increase in wildfires and species extinction.