یک اصلاح واحد وضعیت استانداردهای آلایندگی خودرو را معکوس می کند

A single fix reverses the case for rolling back vehicle emissions standards

Two administrations, the Biden administration and the second Trump administration, reached opposite conclusions about whether vehicle emissions standards should be rolled back. These conclusions came from different assumptions, including whether avoiding air pollution has value to society and the degree to which car buyers value future fuel savings from getting a more efficient vehicle. Both assumptions matter, and…