The BBC's Justin Rowlatt found a visit to Antarctica made him emotional, and ultimately hopeful.Read more
Scientists face some unique challenges working in the harsh conditions of the Antarctic.
Glaciologists have described Thwaites as the "most important" glacier in the world, the "riskiest" glacier, even the "doomsday" glacier. It is massive - roughly the size of Britain - and already accounts for 4% of world sea level rise each year. But satellite data shows that it is melting increasingly rapidly. For the first time this year, a large-scale scientific survey is happening on the glacier. And Chief Environment Correspondent Justin Rowlatt was invited along. (Photo: Aerial view of Thwaites tongue from high above the Amundsen Sea in 2016. John Sonntag / NASA)
Scientists are studying why the Thwaites Glacier is melting quicker than previously thought.
Thwaites Glacier is reported to be melting quicker than previously thought - scientists are now trying to find out why.
Thirty-nine tourists were stuck for hours in freezing cold, but are now safe.