Posted on April 30, 2021 | Views: 162
cwebb2021-04-29T22:10:04-07:00
by Seth Borenstein: Human-caused climate change is now making glaciers lose snow and ice even more rapidly, scientists say…
Glaciers are melting faster, losing 31% more snow and ice per year than they did 15 years earlier, according to three-dimensional satellite measurements of all the world’s mountain glaciers.
Scientists blame human-caused climate change.
Using 20 years of recently declassified satellite data, scientists calculated that the world’s 220,000 mountain glaciers are losing more than 328 billion tons (298 billion metric tons) of ice and snow per year since 2015, according to a study in Wednesday’s journal Nature. That’s enough melt flowing into the world’s rising oceans to put Switzerland under almost 24 feet (7.2 meters) of water each year.
Earlier reports suggested Alpine floes would last until the middle of the century
But melting has accelerated dramatically in the last few years, experts say
The floes have lost two-thirds of their volume and a third of their surface area
NASA satellite imagery analyzed all the world s glaciers for the first time
European glaciers could lose 90% of their ice by 2100 if greenhouse emissions aren t curbed
Glacier melt is speeding up
World
April 29, 2021
Nearly all of the world’s glaciers are losing mass at an ever increasing pace, contributing to more than a fifth of global sea level rise this century, according to unprecedented research released on Wednesday.
Glaciers vast bodies of frozen water that sit above ground have been melting fast since the middle of the 20th century, but until now the full extent of ice loss had only been partially understood.
An international team of researchers has for the first time observed all of Earth’s some 220,000 glaciers, excluding the Greenland and Antarctic ice sheets, to properly evaluate the amount and rate of melt over the past two decades.
Nearly all of the worlds glaciers are losing mass at an ever increasing pace, contributing to more than a fifth of global sea level rise this century, according to unprecedented research released Wednesday
Satellites show world's glaciers melting faster than ever japantoday.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from japantoday.com Daily Mail and Mail on Sunday newspapers.