Greenland:
1. ice sheet now beyond tipping point and expected to completely disappear due to global warming of more than 2°C which will hit around 2030 - 2040
2. ice loss: 1/4 trillion tons per year
3. melt acceleration is exponential
4. sea level rise feedback has begun
1. ice sheet now beyond tipping point and expected to completely disappear due to global warming of more than 2°C which will hit around 2030 - 2040
2. ice loss: 1/4 trillion tons per year
3. melt acceleration is exponential
4. sea level rise feedback has begun
The climate and ecological catastrophe is much worse than people think, but it will never be too late to take action to limit the inevitable damage.
'The Greenland ice sheet is expected to completely disappear due to global warming of more than 2.0°C'.
advances.sciencemag.org/content/6/2/ea…
'The Greenland ice sheet is expected to completely disappear due to global warming of more than 2.0°C'.
advances.sciencemag.org/content/6/2/ea…
"Models suggest that the Greenland Ice Sheet could be doomed at 1.5C of warming, which could happen as soon as 2030".
New climate models show that 1.5C could well hit in the 2020s, with 2C looking likely well before 2045 (one or two studies even say 2030).e360.yale.edu/features/as-cl…
New climate models show that 1.5C could well hit in the 2020s, with 2C looking likely well before 2045 (one or two studies even say 2030).e360.yale.edu/features/as-cl…
'The rate that Greenland's ice sheet is melting surpassed scientists' expectations and has raised concerns that their worst-case scenario predictions are coming true.'
🔺 'annual average loss of 234 billion tons per year'
Dec 2019:
ecowatch.com/greeland-melti…
🔺 'annual average loss of 234 billion tons per year'
Dec 2019:
ecowatch.com/greeland-melti…
Greenland melting rate has been up to 5 times greater in last 20 years than pre-industrial rates, and is now on an exponential trajectory - small temperature increases equal much greater melt rates.
🔺 ice sheet holds enough water to raise sea levels 7m.abc.net.au/news/science/2…
🔺 ice sheet holds enough water to raise sea levels 7m.abc.net.au/news/science/2…
It is a feedback cycle, he said, but not necessarily "runaway" feedback.
"If you cooled the atmosphere, the melting would slow down...But the Arctic keeps warming..."
insideclimatenews.org/news/18092019/…
"If you cooled the atmosphere, the melting would slow down...But the Arctic keeps warming..."
insideclimatenews.org/news/18092019/…
'Global sea levels will rise 2 to 6 feet by 2100 on the current trajectory, according to satellite data. However, scientists warn that the projections underestimate the climate change impact on sea level rise.'
The world's largest cities are now in danger.cnbc.com/2020/04/15/cli…
The world's largest cities are now in danger.cnbc.com/2020/04/15/cli…
I'll finish the thread with 2 earlier threads (some people don't like when I quote my own threads, but they're full of science so I think it's entirely legitimate).
Sea level rise will strike some parts of the world hard in the coming decades:
Sea level rise will strike some parts of the world hard in the coming decades:
A scientist helpfully informed me that the article I based this tweet on doesn't quite tell the whole story of James Hansen's extraordinary sea level rise projections. So, I would change the year from 2055 to 2065 or 2070 if I were to write it again...
'many people will be affected: even under conservative growth assumptions, there could be 880m people living in flood-exposed coastal regions by 2030, and more than a billion by 2060.'
Elephant Foot Glacier, northern Greenland image from this article:theconversation.com/arctic-breakdo…
Elephant Foot Glacier, northern Greenland image from this article:theconversation.com/arctic-breakdo…
