Climate protesters demonstrate outside the local government legislature’s offices in Johannesburg, South Africa, Sept. 20, 2019 (AP photo by Themba Hadebe).

The standard, “flirting with apocalypse” narrative that dominates U.S. media coverage and political debates regarding climate change goes something like this: China, which is the world’s biggest carbon emitter, and India, which is lightly industrialized and still quite substantially poor, currently represent the biggest threats to saving the environment. The supposedly more altruistic West, by contrast, is prepared to make huge investments to forestall disaster. People who cling to this all-too-easy framing correctly say that if the world’s two most-populous countries do not radically constrain their carbon output, nothing the United States or Europe can do, including rapidly attaining net-zero […]