Here Are 4 Possibilities for Trump's Paris Decision

President Trump is expected to tell the world at 3pm Eastern whether the US will remain in the Paris climate accord or become just the third nation to reject it. A slew of reports on Wednesday suggested that Trump is poised to have the US withdraw, though most accounts hedge their bets with a it's-not-final-until-Trump-announces caveat. Also in play: It's not as simple as yay or nay; Trump could take one of a handful of complicated options. Among them:

• Formal withdrawal: If Trump opts to officially withdraw, it wouldn't take effect until 2020, explains CNN. The pact stipulates that nations can't request withdrawal until November 2019, at which point they must give one-year notice.
• Faster route: To get out quicker, Trump could exit the underlying United Nations Framework Convention on Climate Change, notes NPR. That, too, requires one-year notice, but that notice can be given at any time—meaning the US could be out in 2018. One complicating factor: Unlike the Paris accord, the UNFCCC treaty was approved by the Senate, and senators would likely want to weigh in.

• Compromise: Politico notes that Ivanka Trump's camp has been floating a middle ground of sorts: "staying in the deal while drastically scaling back the Obama administration's non-binding carbon cleanup promises."
• To the Senate: The New York Times reports that Trump could take a less direct route to withdrawal by sending the pact to the Senate to be ratified as a treaty. (President Obama signed into effect through an executive order, and it was never formally ratified by Congress.) The chances of it being ratified with the necessary two-thirds vote are pretty much non-existent.

(More President Trump stories.)