New research suggests human-caused emissions will lead to bigger impacts on heat and extreme weather, and sooner than the IPCC warned just three years ago.

In the past year, the scientific consensus shifted toward a grimmer and less uncertain picture of the risks posed by climate change.

When the UN’s Intergovernmental Panel on Climate Change issued its 5th Climate Assessment in 2014, it formally declared that observed warming was “extremely likely” to be mostly caused by human activity.

This year, a major scientific update from the United States Global Change Research Program put it more bluntly: “There is no convincing alternative explanation.”

Source: Climate Change Is Happening Faster Than Expected, and It’s More Extreme