Carbon Dioxide Emissions Are Up Again. What Now, Climate?

Thick clouds emanate from a coal-burning power plant in Baishan, in the Jilin province of China. In an effort to boost its economy, China has recently started greenlighting coal projects that had been on hold.

The fortuitous dip in emissions of the main greenhouse gas, carbon dioxide, during the past three years is over, as economies turn up. The trend in the near future looks grim, say climate scientists.

(Image credit: Christian Petersen-Clausen/Getty Images)