So how certain is climate change, really?
Turns out the global scientific community is a lot more certain than you might expect, given how much climate change gets denied in politics.
Here’s the basic run-down of what we know:
- Global warming has been happening — and the evidence is unequivocal.
- Human activities have definitely contributed to global warming.
- It’s 95% certain that human activities have caused most of the global warming since 1950.
- The best estimate is that human activities have caused all or nearly all of the global warming since 1950.
Or to sum up in a single sentence: Global warming is unequivocally happening, and humans have caused most — maybe all — of it.
Continue reading for details and citations.