Obama: World not moving fast enough on climate change

US President Barack Obama joked on instagram about meeting a "Bear in the park" during his three-day trip to Alaska.

He posted a selfie with British TV adventurer Bear Grylls, who he met during his trip to observe the effects of climate change on the area, with the caption: "Glad this is the only Bear I met in the park - bo."

Obama is trying to build support for tough new rules on carbon emissions from power plants ahead of a hoped-for international climate deal at a UN summit in Paris in December.

Yesterday, he recorded an episode of NBC survival television show, 'Running Wild with Bear Grylls', set to air later this year.

World leaders must agree to cut carbon emissions at a UN summit in December because the climate is changing faster than efforts to curb global warming, US President Barack Obama has said during a visit to Alaska.

The three-day visit is aimed at highlighting the state's melting permafrost and eroding coastlines.

During the visit, US President Barack Obama will trek with British TV adventurer Bear Grylls to observe the effects of climate change on the area.

Obama is trying to build support for tough new rules on carbon emissions from power plants ahead of a hoped-for international climate deal at a UN summit in Paris in December.

Speaking at a meeting of foreign ministers in Alaska, Obama said: "Climate is changing faster than our efforts to address it. That ladies and gentleman must change. We're not acting fast enough.

"This year, in Paris, has to be the year that the world finally reaches an agreement to protect the one planet that we've got while we still can."

Read more: The Alaskan island that is disappearing into the ocean