Environmental Networking Platform for Children and Youth by SAMSUNG E&A
Stay connected with Eco-generation :
| Share 
| 
- Home >
- Our Actions >
- World report
5
Comments
Oceans could rise up to 1.3 metres by 2100 |
|---|
|
by Meghana Fessy | 14-05-2020 02:21
|
|
Scientists have warned that oceans are likely to rise as much as 1.3 metres by 2100 if the Earth's surface warms another 3.5 degrees Celsius.
By 2300, ice sheets covering West Antarctica and Greenland will have shed trillions of tonnes in mass. Sea levels could then go up by more than five metres under that temperature scenario. About ten percent of the world's population today live on land less than five metres above the high tide line. Across the 20th century, sea level rise was caused mainly by melting glaciers and the expansion of ocean water as it warms. But over the last two decades, the main driver has become the melting and disintegrating of Earth's two ice sheets. Greenland and West Antarctica are shedding at least six times more ice today than during the 1990s. From 1992 through 2017 they lost some 6.4 trillion tonnes in mass. The Greenland and West Antarctica ice sheets hold enough frozen water to lift oceans about 13 metres. East Antarctica, which is more stable, holds another 50 metres' worth. Over the last decade, the sea level has gone up about four millimetres per year. Moving into the 22nd century, however, the waterline could rise ten times faster according to the UN Intergovernmental Panel on Climate Change. While less visible than climate-enhanced hurricanes or persistent drought, sea level rise may ultimately prove the most devastating of global warming impacts. But if humanity succeeds in cutting carbon dioxide and holding the increase in temperature to the Paris climate treaty's goal of below 2C, the rise would be a more manageable 0.5 metre. The large difference in sea level rise seen provides a great deal of hope for the future, as well as a strong motivation to act now to avoid the more severe impacts of rising sea levels.
|
|
|
|
|
|
Previous : Push pull poly cropping
5 Comments
Hello Meghana,
Hope you are safe and having quality time these days.
It was a great report. Hope to learn more from you! Keep sharing!
Green regards from Nepal!
Posted 20-05-2020 22:58
Hello Meghana
I hope you are doing well
Since we now know what will happen in future. It's timr to act now more responsibly.
Thank you so much for your report.
Keep writing
Green cheers
Regards
Asmita Gaire
Posted 19-05-2020 10:57
THANKS FOR SHARING
Posted 18-05-2020 23:31
Hello Meghana!
I hope you are fine and going great!
Thanks for sharing the report!
Hope we concerned on this topic and save earth.
GREEN CHEERS FROM NEPAL!
Regards,
Sonika
Posted 14-05-2020 17:06
Thanks for sharing such an informative article Meghana.
Posted 14-05-2020 14:59