A new study has found that much of the world will face uninhabitable temperatures if we continue on the current course of climate change as situation grows more dire
That’s old news, no? I recall reading that basically from 2°C there is no more economic growth, what means a lot of people are thrown under the bus. From 3°C there is no more economy, meaning no food, heating, fighting everywhere. From 4°C there is basically no more humanity.
I’m looking at the Full Volume, and on page 71 you can see
With about 2°C warming, climate-related changes in food availability and diet quality are estimated to increase nutrition-related diseases and the number of undernourished people, affecting tens (under low vulnerability and low warming) to hundreds of millions of people (under high vulnerability and high warming) … Climate change risks to cities, settlements
and key infrastructure will rise sharply in the mid and long term with
further global warming, especially in places already exposed to high
temperatures, along coastlines, or with high vulnerabilities (high
confidence).
At global warming of 3°C, additional risks in many sectors and regions
reach high or very high levels, implying widespread systemic impacts,
irreversible change and many additional adaptation limits (see Section 3.2)
(high confidence). For example, very high extinction risk for endemic
species in biodiversity hotspots is projected to increase at least tenfold
if warming rises from 1.5°C to 3°C (medium confidence). Projected
increases in direct flood damages are higher by 1.4 to 2 times at 2°C
and 2.5 to 3.9 times at 3°C
Global warming of 4°C and above is projected to lead to far-reaching
impacts on natural and human systems (high confidence). Beyond
4°C of warming, projected impacts on natural systems include local
extinction of ~50% of tropical marine species (medium confidence)
and biome shifts across 35% of global land area (medium confidence).
At this level of warming, approximately 10% of the global land area
is projected to face both increasing high and decreasing low extreme
streamflow, affecting, without additional adaptation, over 2.1 billion people
(medium confidence) and about 4 billion people are projected to
experience water scarcity (medium confidence). At 4°C of warming, the
global burned area is projected to increase by 50 to 70% and the
fire frequency by ~30% compared to today
However, if you really want to get into it, you can read the Climate Change 2022: Impacts, Adaptation and Vulnerability Full Report. It has a lot more details about the effects of climate change on all parts of the world, but it’s also a 3,000 page pdf.
One of the counterproductive parts of projections like this is humans do poorly with long term thinking. These results are not immediate. Most people will just assume hyperbole when they see it not happen*
That’s old news, no? I recall reading that basically from 2°C there is no more economic growth, what means a lot of people are thrown under the bus. From 3°C there is no more economy, meaning no food, heating, fighting everywhere. From 4°C there is basically no more humanity.
That sounds pretty extreme. I’d be Interested in reading that article, if you can find it.
https://www.ipcc.ch/report/ar6/syr/
I’m looking at the Full Volume, and on page 71 you can see
However, if you really want to get into it, you can read the Climate Change 2022: Impacts, Adaptation and Vulnerability Full Report. It has a lot more details about the effects of climate change on all parts of the world, but it’s also a 3,000 page pdf.
It’s mild hyperbole, but it’s not far off from best-guess speculation. It’s well and regularly covered in IPCC reports. Have at.
One of the counterproductive parts of projections like this is humans do poorly with long term thinking. These results are not immediate. Most people will just assume hyperbole when they see it not happen*