We see far greater risk of massive irreversible sea level rise (SLR) at 2°C, on a scale of 12–20 meters or more in the long term. The climate record of the Earth over the pat few million years is quite clear:
![](https://static.wixstatic.com/media/00f578_d32afe17df1a40d0ae7d0165fb4d1286~mv2.jpg/v1/fill/w_147,h_42,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/00f578_d32afe17df1a40d0ae7d0165fb4d1286~mv2.jpg)
Sea Level Rise from Ice Sheets
We see far greater risk of massive irreversible sea level rise (SLR) at 2°C, on a scale of 12–20 meters or more in the long term. The climate record of the Earth over the pat few million years is quite clear:
![](https://static.wixstatic.com/media/00f578_d32afe17df1a40d0ae7d0165fb4d1286~mv2.jpg/v1/fill/w_147,h_42,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/00f578_d32afe17df1a40d0ae7d0165fb4d1286~mv2.jpg)
Sea Level Rise from Ice Sheets
About 50x30
50x30 is founded by a few leading cryosphere and climate research institutions, in partnership with current 50x30-consistent governments:
And also by the umbrella Earth and Space science group, the American Geophysical Union (AGU).
Current “50x30” consistent governments include Denmark, Finland, Germany, Sweden and COP-26 host the United Kingdom. Finland and the UK have both endorsed the 50x30 Mission Statement.
The International Cryosphere Climate Initiative (ICCI, Sweden/U.S.) provides administrative support for 50x30.
50x30 is made possible through the generous foundation support of Svenska Postkodstiftelsen.