Polar Ice

Portrait for @ash
by @ash
2020-08-25T01:30:02+00:00
Climate & Environment
28 trillion tonnes of ice disappeared in the last 30 years, scientists find
Easton Glacier on Mount Baker in the North Cascades of Washington taken in 2003. It shows the terminus position of the glacier in 1985 as well.
Easton Glacier on Mount Baker in the North Cascades of Washington taken in 2003. It shows the terminus position of the glacier in 1985 as well. Credit: Mauri Pelto (talk · contribs) / Wikimedia Commons (Public Domain)

Scientists from universities in Leeds, Edinburg and London have analysed satellite images of the Earth's globes, glaciers and mountains and found that around 28 trillion tonnes of ice have disappeared since 1994. The "staggering" loss is due to rising greenhouse gas emission and global heating.

"In the past researchers have studied individual areas – such as the Antarctic or Greenland – where ice is melting. But this is the first time anyone has looked at all the ice that is disappearing from the entire planet. What we have found has stunned us," so Professor Andy Shepherd, director of Leeds University’s Centre for Polar Observation and Modelling.

Their research further warns that sea levels could rise by a metre by the end of the century and the melting could reduce our planet's ability to reflect solar radiation back into space.

"To put that in context, every centimetre of sea level rise means about a million people will be displaced from their low-lying homelands," so Shepherd.

Portrait for @ash
by @ash
2020-05-01T10:49:50+00:00
Climate & Environment
New inland ice buildup in Greenland and Antarctia, but massive ice losses along coastline
New inland ice buildup in Greenland and Antarctia, but massive ice losses along coastline
Credit: NASA Goddard

NASA's ICESat-2's satellite observation data shows the change of Greenland's and Antarctica's ice sheets between 2003 and 2019. The data reveals that the ice in both eastern Antarctica and central Greenland thickened slightly but showed a drastic thinning along the coastline and a severe thinning on Greenland's glaciers.