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Zero Emissions By 2025-30.

Why?

1. summer Arctic sea ice will vanish by 2029.

2. Even if we make large emissions cuts by 2040, carbon feedbacks may cause an abrupt rise in average global temperature to 4C by 2060, killing all trees and most humans alive today.

THIS is news.
For more information see these 3 threads:

1.

2.

3.
Yes, act now while it's still too late.

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More from @ClimateBen see all

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Ben See
@ClimateBen
Mountain glaciers:

1. have been disintegrating and collapsing unexpectedly every year since 2016, the 5 hottest years ever recorded

2. Earth's 200,000 glaciers are now extremely vulnerable to melting with most ice at risk by the 2040s

3. many set to vanish by 2030 at 1.5- 2°C
Since 2016 mountain glaciers have unexpectedly disintegrated and collapsed, including a pair of deadly ice avalanches in Tibet. In Alaska, a quarter-mile section of the Flat Creek glacier broke away and oozed down the valley, mowing down 400-year-old trees
insideclimatenews.org/news/30042020/…
Substantial ice loss for World Heritage glaciers throughout the 21st century.

'Mass loss by 2100 will account for 33 ± 11% (RCP2.6) to 60 ± 14% (RCP8.5) of the 2017 volume.'

We're on track for 2- 3C by the 2040s, putting most mountain glaciers at risk. agupubs.onlinelibrary.wiley.com/doi/full/10.10…
Read 10 tweets
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Ben See
@ClimateBen
Major events of the next 15 years:

1. summer Arctic sea ice vanishes
2. rainforests turn to savannah
3. rapid deglaciation of Antarctica
4. Greenland ice sheet loss begins
5. all tropical coral reefs collapse
6. 50% of birds head to extinction

Why isn't this the top news story?
See here for more details:

and here:

Read 3 tweets
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Ben See
@ClimateBen
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
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…
"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…
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