US President Barack Obama will trek through the wilderness in Alaska this week with British TV adventurer Bear Grylls, the NBC channel has announced.

He is due to tape an episode of Running Wild with Bear Grylls to observe the effects of climate change on the area, it said. He is the first president to appear on the show, to be aired later this year.

President Obama is on a three-day tour of Alaska aimed at highlighting the pace of climate change. It is part of his administration’s efforts to build support for new legislation significantly capping carbon dioxide emissions from power plants in the US, as well raise attention to the ways climate change has damaged Alaska’s natural landscape.

Mr. Obama follows several other high profile figures, including actresses Kate Winslet and Kate Hudson, who have tested their survival skills on the show.

Bear Grylls – a former British special forces soldier – puts celebrities through their paces in remote forests and mountains across the world, “pushing their minds and bodies to the limit to complete their journeys”. (BBC)