Was that wild weather caused by climate change? Scientists can now say ‘yes’ with confidence

John Keefe and Curt Merrill at CNN:

In June, an unprecedented heat wave in the Pacific Northwest killed hundreds of people and shattered records in Oregon, Washington and Idaho. Canada logged a new national record high when a town in British Columbia soared to 121.3 degrees Fahrenheit.

Historic heat waves are so clearly caused by human-driven emissions that researchers can now easily link them to climate change. Scientists at World Weather Attribution concluded this summer’s Northwest heat wave would have been “virtually impossible” without it.

More here.