Several Senate Democrats will attend global climate talks in Germany next month to assure the nearly 200 nations in the Paris Agreement that many Americans still support it, despite President Donald Trump’s decision to pull the U.S. out of the accord.

Sen. Ben Cardin (D-Md.), the top Democrat on the Senate Foreign Relations Committee, told Bloomberg Environment Oct. 26 that he will lead a delegation that includes Sens. Brian Schatz (D-Hawaii), Ed Markey (D-Mass.), and other...