In a landmark shift, a new study has found that climate change is now the most pervasive human-caused threat to imperiled ...

Current climate policy is insufficient. Learn how human emissions drive climate change and the consequences of inaction.

These points of no return are specific moments when the planet has warmed so much that certain effects become irreversible.

Multiple climate 'tipping points' are likely to be triggered if global policies stay on their current course, new research shows.