Scientists say new climate law is likely to reduce warming

WASHINGTON (AP) — Massive incentives for clean energy in the U.S. law signed Tuesday by President Joe Biden should reduce future global warming “not a lot, but not insignificantly either,” according to a climate scientist who led an independent analysis of the package.

Even with nearly $375 billion in tax credits and other financial enticements for renewable energy in the law, the United States still isn’t doing its share to help the world stay within another few tenths of a degree of warming, a new analysis by Climate Action Tracker says. The group of scientists examines and rates each country’s climate goals and actions. It still rates American action as “insufficient" but hailed some progress.

“This is the biggest thing to happen to the U.S. on climate policy,” said Bill Hare, the Australia-based director of Climate Analytics which puts out the tracker. “When you think back over the last decades, you know, not wanting to be impolite, there’s a lot of talk, but not much action.”

This is action, he said. Not as much as Europe, and Americans still spew twice as much heat-trapping gases per person as Europeans, Hare said. The U.S. has also put more heat-trapping gas into the air over time than any other nation.

Before the law, Climate Action Tracker calculated that if every other nation made efforts similar to those of the U.S., it would lead to a world with catastrophic warming — 5.4 to 7.2 degrees (3 to 4 degrees Celsius) above pre-industrial times. Now in the best case scenario, which Hare said is reasonable and likely, U.S. actions, if mimicked, would lead to only 3.6 degrees (2 degrees Celsius) of warming. If things don’t work quite as optimistically as Hare thinks, it would be 5.4 degrees (3 degrees Celsius) of warming, the analysis said.

Even that best case...