From Europe to Capitol Hill, proponents of stronger action to fight climate change are hopeful that Secretary of State nominee Sen. John Kerry (D-Mass.) will put global warming on the front burner at Foggy Bottom.

Connie Hedegaard, the European Union’s top climate change official, lauded the choice of Kerry as the nation’s top diplomat via Twitter.

“Confident @JohnKerry as state sec is good news for #climate. Cross fingers his dedication will make climate a strategic priority. Congrats,” said Hedegaard, the E.U.’s commissioner for climate action.

Kerry, who is widely expected to win Senate confirmation, is a decades-long advocate of addressing global warming, and calls climate change a major security and foreign policy challenge.

But he’ll be arriving as barriers to progress on climate change loom large.

Global negotiations to craft a global climate deal are treading water at best, while bills to impose new restrictions on U.S. greenhouse gas emissions remain moribund in Congress, which doesn’t help the nation’s international leverage.