Endurance swimmer Lewis Pugh takes on 'most challenging' route yet

Endurance swimmer Lewis Pugh is taking on what he describes as the coldest swim on Earth, to highlight the impact of the climate crisis on the planet.

Pugh, who has swum in just trunks goggles and a cap in the Arctic, Antarctic, the Himalayas and up the English Channel, is heading to Greenland for a challenge to highlight the speed at which the planet is melting.

He will swim across the 10-kilometre (six-mile) mouth of the Ilulissat Icefjord, in front of the world’s fastest-moving glacier, in near-freezing waters with a wind chill that can plummet temperatures to negative numbers.

The athlete will be swimming much further than 10km, however, as he'll need to navigate around icebergs and floating fragments of ice, known as brash ice.

It is expected to take two weeks at the end of August and will be the world’s first multi-day swim in the polar regions, as well as the coldest swim on Earth, Pugh says.

After the swim, the campaigner will head to crucial international Cop26 talks in Glasgow to urge governments to take urgent action on the crisis.

"What happens in the Arctic will determine the future of our planet and everything that lives on it," Pugh said.

"The polar regions are feeling the effects of the climate crisis more dramatically than anywhere else on Earth.

"If temperatures continue to increase, the polar ice caps will melt and sea levels will rise.

"Unless we take urgent action to decrease global temperatures by seriously lowering our global carbon dioxide emissions, low-lying islands and coastal cities will, quite literally, drown."

He added: "The devastation of the natural world will affect every single person, every future generation and every creature, great and small, on this planet."

Pugh is also calling for 30% of the world’s oceans to be protected as part of efforts to curb climate change – with healthy seas more able to store carbon and help protect the land against the impacts of rising temperatures.

The swim comes after the UN issued a stark report on how humanity is driving global warming, causing increasingly dangerous extreme weather, melting ice caps and glaciers and rising sea levels that threaten coastal cities such as London and New York.

The Ilulissat Glacier, which is a Unesco World Heritage Site, moves at an average of 30 metres per day and produces 10% of Greenland’s icebergs, some of which are over 1km (0.6 miles) tall and including – according to legend – the one that sank the Titanic.

Pugh’s previous efforts in “Speedo diplomacy”, undertaking extreme swims in just trunks, goggles and cap as part of campaigns to drive action to help the environment, have helped protect vast tracts of ocean.

He is currently training in Iceland, before moving his training to Greenland ahead of his swim, which is expected to start on August 25.

He said: "This swim will be the most challenging of my career. The cold-water adaptation and training alone is gruelling and extremely intense on the body.

"But there is a reason I’m doing this. We are an ice-dependent species. Ice keeps our planet cool enough for us to live.

"The polar regions and high-altitude glaciers are melting, and our collective survival is on the line. No ice, no life."