Greenland’s melting ice may affect everyone’s future
NASA scientists are trying to understand how this region is responding to climate change, and how that will influence sea levels around the world.
The glaciers are melting on arctic ocean in Greenland. Big glaciers day by day broking and dangerous on world climate system. Shooting day was foggy weather and glaciers didn’t have been look clear. You can easily see that iceberg is over the water surface, and below the water surface. Sometimes unbelievable that 90% of an iceberg is under water.
Greenland’s contribution to sea-level rise is currently tracking what had been regarded as a pessimistic projection of the future. It means an additional 7cm of ocean rise could now be expected by the end of the century from Greenland alone. This threatens to put many millions more people in low-lying coastal regions at risk of flooding. It’s estimated roughly a billion live today less than 10m above current high-tide lines, including 250 million below 1m.
“Storms, if they happen against a baseline of higher seas – they will break flood defences,” said Prof Andy Shepherd, of Leeds University.
“The simple formula is that around the planet, six million people are brought into a flooding situation for every centimetre of sea-level rise. So, when you hear about a centimetre rise, it does have impacts,” (BBC News).
The British scientist is the co-lead investigator for Imbie – the Ice Sheet Mass Balance Inter-comparison Exercise.
It’s a consortium of 89 polar experts drawn from 50 international organisations.
The group has reanalysed the data from 11 satellite missions flown from 1992 to 2018. These spacecraft have taken repeat measurements of the ice sheet’s changing thickness, flow and gravity. The Imbie team has combined their observations with the latest weather and climate models.
What emerges is the most comprehensive picture yet of how Greenland is reacting to the Arctic’s rapid warming. This is a part of the globe that has seen a 0.75C temperature rise in just the past decade.