South Pole not immune to warming, despite previous beliefs it was.
Either their equipment is malfunctioning, or they've found particles that are travelling backwards through time, researchers say.
When dinosaurs roamed the planet, Antarctica was home to "dense temperate, swampy forests" it turns out.
Experts fear for the Ice Continent's native species - and for the rest of the world.
Its aim is to help them learn about climate change.
"I bring 220 pounds of food but one pair of underwear."
Climate change scientists are concerned about the impact on warming oceans.
One area was 18C - warmer than most of the South Island.
Smoke from wildfires in Australia has drifted across the Pacific and affected cities in South America, and may have reached the Antarctic.
"It is real. We need to take it really seriously today, because it is happening."
The event starts at 5pm, and is open to the public.
Greg Gilpin says it was an incredible effort under the circumstances.
Unusually warm temperatures are causing it to shrink.
It will be monitored to minimise its threat to shipping.
But it's not going to be all sunning yourself in the snow.
The team was forced to retrieve the person on board.
It's only the eighth such lake of its type ever discovered.
The chill is expected to last all of next week.
They will look at the impact of climate change on New Zealand and the globe.
The discovery of an 11m fossil has answered a paleontological mystery.