Sept. 8 — Some call it a zero-carbon schism, others a heresy. The researchers, policymakers and environmentalists united over the need to stop global warming are divided on how to go about it. Many believe that renewable energy, especially wind and solar, has by far the biggest role to play. A dogged few, however, cling to nuclear energy, which is also carbon-free but has an image problem. The two camps barely speak to each other.

— The Economist