The Only Solution May Be Technology

 

Brad Plumer writes:

Biochar has always sounded like a whimsical climate solution that's too good to be true. Simply stir a little charcoal into the soil and—voila—it's supposedly possible to suck thousands of tons of carbon-dioxide out of the air. Sounds suspicious, no? And yet it just might work. A new study in Nature Communications finds that the world could, in theory, sustainably offset a whopping 12 percent of global greenhouse-gas emissions by producing biochar.

That study is