Yes, the climate has always changed.

But, the speed of recent change is unprecedented.

More importantly, we understand why.

Burning fossil fuels & deforestation adds carbon dioxide to the atmosphere which warms the planet.

Simple physics. Understood for more than a century.

#EarthDay

@ed_hawkins we are, in a couple of centuries, undoing millions of years of natural carbon sequestration. The result is relatively rapid climate changes, and rapid change means high adaptation costs. We can mitigate those costs by moderating our fossil carbon consumption. I really don’t understand what is the least bit controversial about those statements.
@dan131riley @ed_hawkins the only ‘controversy’ is about oligarchs losing money and control.