Biden aims for most ambitious US effort on climate change

  • National Climate Adviser Gina McCarthy speaks during a press briefing at the White House, Wednesday, Jan. 27, 2021, in Washington. (AP Photo/Evan Vucci)

  • Former Gov. Jennifer Granholm, D-Mich., testifies before the Senate Energy and Natural Resources Committee during a hearing to examine her nomination to be Secretary of Energy, Wednesday, Jan. 27, 2021 on Capitol Hill in Washington. (Graeme Jennings/Pool via AP)

  • President Joe Biden answers questions from reporters in the South Court Auditorium on the White House complex, Monday, Jan. 25, 2021, in Washington. (AP Photo/Evan Vucci)

  • FILE - In this April 9, 2014, file photo, oil rigs stand in the Loco Hills field on U.S. Highway 82 in Eddy County near Artesia, N.M., one of the most active regions of the Permian Basin. President Joe Biden is set to announce a wide-ranging moratorium on new oil and gas leasing on U.S. lands, as his administration moves quickly to reverse Trump administration policies on energy and the environment and address climate change. (AP Photo/Jeri Clausing, File)

  • Special Presidential Envoy for Climate John Kerry speaks during a press briefing at the White House, Wednesday, Jan. 27, 2021, in Washington. (AP Photo/Evan Vucci)

WASHINGTON — In the most ambitious U.S. effort to stave off the worst effects of climate change, President Joe Biden is aiming to cut oil, gas and coal emissions and double energy production from offshore wind turbines through executive orders Wednesday.