The Obama administration violated federal law by failing to adequately take into account the climate change impact of leasing public land for oil gas drilling in Wyoming, a federal judge ruled Tuesday.

The decision by the U.S. District Court, which could also present a legal threat to President Trump's agenda to quickly expand oil and gas drilling and coal mining across the nation's public lands and waters, amounts to a road map that could be used to challenge hundreds of Trump administration leases as well.

However, experts said that while the decision could lead to legal delays for the drilling expansion envisioned by Mr. Trump by tangling them in litigation, it was unlikely to halt it entirely.

"The court is saying, you have to go back and take a harder look at the climate impacts," said Ballard Spahr Partner Harry Weiss, who focuses on environmental matters. "But they're also saying if they do a heck of job on figuring it out, then they can go back and drill."

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