Pips@lemmy.sdf.org to World News@lemmy.worldEnglish · 10 months agoGreenland losing 30m tonnes of ice an hour, study revealswww.theguardian.comexternal-linkmessage-square22fedilinkarrow-up1263arrow-down14cross-posted to: science@lemmy.worldclimate@slrpnk.neteurope@feddit.de
arrow-up1259arrow-down1external-linkGreenland losing 30m tonnes of ice an hour, study revealswww.theguardian.comPips@lemmy.sdf.org to World News@lemmy.worldEnglish · 10 months agomessage-square22fedilinkcross-posted to: science@lemmy.worldclimate@slrpnk.neteurope@feddit.de
minus-squarelntllinkfedilinkEnglisharrow-up8arrow-down1·10 months agoI did the math on this recently: GL has approx 3 million Gt of ice and is losing it at a rate approx equal to 260 Gt/yr. If that rate is constant (unlikely) the first ice free summer in GL will be in 13,500 CE
minus-squareMoira_Mayhem@lemmy.blahaj.zonelinkfedilinkEnglisharrow-up2·10 months agoOf course you didn’t bother to include the compounding greenhouse effect from increased water vapor, which is significantly worse than CO2. Just we don’t talk about it as much because water vapor levels are historically stable. Unfortunately, losing albedo effects from icecap melting is making it far easier for water to get into the atmosphere in large amounts. So it’s not been stable for a bit now. I expect within 5 years it will be a major talking point
minus-squarelntllinkfedilinkEnglisharrow-up1·10 months agoif you add a term, I’ll include it and update the post
I did the math on this recently: GL has approx 3 million Gt of ice and is losing it at a rate approx equal to 260 Gt/yr.
If that rate is constant (unlikely) the first ice free summer in GL will be in 13,500 CE
Of course you didn’t bother to include the compounding greenhouse effect from increased water vapor, which is significantly worse than CO2.
Just we don’t talk about it as much because water vapor levels are historically stable.
Unfortunately, losing albedo effects from icecap melting is making it far easier for water to get into the atmosphere in large amounts.
So it’s not been stable for a bit now. I expect within 5 years it will be a major talking point
if you add a term, I’ll include it and update the post