FILE PHOTO: John Kerry, Special Presidential Envoy for Climate, delivers remarks during a press briefing at the White House in Washington, U.S., April 22, 2021. REUTERS/Tom Brenner/File Photo
'If we don’t reduce carbon emissions enough as a planet between 2020 and 2030, we make holding [global warming to] 1.5°C impossible,' Mr Kerry said. Reuters

John Kerry: US will use executive actions to push through climate plan