Brazil pushed for concerted action to alleviate hunger Monday as it hosted a summit of the Group of 20 leading economies amid global uncertainty over two major wars and incoming President-elect Donald ...

Brazil is hosting the Group of 20 summit and it appears unlikely the industrialized and emerging-market nations in attendance will sign a meaningful declaration regarding geopolitics.

If there was any doubt that Joe Biden is no longer in the picture for many world leaders, his final G20 summit in Rio de ...

A massive surge in wetlands methane — unaccounted for by national emissions plans and undercounted in scientific models — ...