Interstate Rule Is One Fix in Thicket of Upwind Pollution Woes

Revising interstate pollution rules should be the first of many punches in the Biden administration’s fight against upwind pollution that wrecks U.S. air quality, clean air experts say.

The Cross-State Air Pollution Rule update, released Monday, is the Environmental Protection Agency’s first environmental rulemaking under President Joe Biden. But environmental groups say it’s among a host of task items left for the administration’s air list, which includes reviewing a backlog of state pollution plans.

“It’s directionally positive and helpful, of course,” said John Walke, an attorney with the Natural Resources Defense Council and its clean air director. “But it’s ...