Effects of Global Warming
3.2oC 5.8oF
With policies currently in place, we are estimated to have
3.2oC 5.8oF
of global warming by the end of the century, more than double the
1.5oC 2.7oF
agreed as a maximum by signatories to the Paris Agreement [1].

Reference:

[1] 'Climate Equality: A planet for the 99%' (Accessed on 20th November, 2023) https://webassets.oxfamamerica.org/media/documents/cr-climat . . .
7 metres 23 feet
The Greenland ice sheet is melting. At our current rate of increasing carbon emissions, we are on track for it all to disappear. If that happens, mean sea-level (MSL) will rise by about
7 metres 23 feet
(due to the Greenland ice sheet alone).
  • According to modelling and to historical data, there is a threshold beyond which self-sustained melting will continue. This threshold has been modelled to occur at a global mean temperature (GMT) between
    1.7C 3.1F
    and
    2.3C 4.1F
    above preindustrial temperatures [1].
  • For several months this year (2023), we were at
    1.5C 2.7F
    above preindustrial temperatures so we are, potentially, very close to that tipping point.
  • If/when we overshoot that threshold, but then manage to get GMT back to
    1.5C 2.7F
    above preindustrial temperatures, melting would slow and eventually stop. But by then MSL will have risen several metres.
  • If GMT rises enough for the Greenland ice sheet to melt, then we shall have to contend with the extra sea-level rise (SLR) due to melting occurring in Antarctica.
  • Greenland's ice sheet produces 1 billion (1x109) tonnes of 'rock flour' each year which could be utilised for (limited) carbon capture. [2]

References:

[1] 'Overshooting the critical threshold for the Greenland ice sheet.' (Accessed on 9th November, 2023) https://www.nature.com/articles/s41586-023-06503-9.epdf?shar . . .
[2] A page within this site: (Accessed on 9th November, 2023) https://www.numbers-matter.org/climate/solutions/ccs/dac#728