How Does One-Third the CO2 Emissions Cause Three Times the Climate Damage?

Don’t ask the EPA because they won’t tell.

This month, the Environmental Protection Agency (EPA) published revised estimates of the social cost of carbon dioxide, methane, and nitrous oxide — the three main greenhouse gases emitted by industrial civilization. The EPA’s new estimates of the social cost of carbon dioxide (SC-CO2) are not only higher than those published by the U.S. government less than three years ago, but also weirder.