What if President Barack Obama’s biggest achievement on climate change was actually a total failure?

“It appears the United States may have gotten the chemistry wrong. Really wrong.”

That’s the central argument of a recent story in the Nation by Bill McKibben, a journalist and environmental activist. “If you get the chemistry wrong,” McKibben writes, “it doesn’t matter how many landmark climate agreements you sign or how many speeches you give. And it appears the United States may have gotten the chemistry wrong. Really wrong.”

Keep reading at Mother Jones.