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‘We should have better answers by now’: climate scientists baffled by unexpected pace of heating (www.theguardian.com)

submitted 3 months ago by [email protected] to c/[email protected]

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Temperatures above 50C used to be a rarity confined to two or three global hotspots, but the World Meteorological Organization noted that at least 10 countries have reported this level of searing heat in the past year: the US, Mexico, Morocco, Algeria, Saudi Arabia, Kuwait, Iran, Pakistan, India and China.

In Iran, the heat index – a measure that also includes humidity – has come perilously close to 60C, far above the level considered safe for humans.

Heatwaves are now commonplace elsewhere, killing the most vulnerable, worsening inequality and threatening the wellbeing of future generations. Unicef calculates a quarter of the world’s children are already exposed to frequent heatwaves, and this will rise to almost 100% by mid-century.

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[–] [email protected] 5 points 2 months ago* (last edited 2 months ago) (1 children)

No, we aren't

https://www.science.org/doi/10.1126/sciadv.adh2458

This planetary boundaries framework update finds that six of the nine boundaries are transgressed, suggesting that Earth is now well outside of the safe operating space for humanity.

The planetary boundaries framework (1, 2) draws upon Earth system science (3). It identifies nine processes that are critical for maintaining the stability and resilience of Earth system as a whole. All are presently heavily perturbed by human activities. The framework aims to delineate and quantify levels of anthropogenic perturbation that, if respected, would allow Earth to remain in a “Holocene-like” interglacial state. In such a state, global environmental functions and life-support systems remain similar to those experienced over the past ~10,000 years rather than changing into a state without analog in human history. This Holocene period, which began with the end of the last ice age and during which agriculture and modern civilizations evolved, was characterized by relatively stable and warm planetary conditions. Human activities have now brought Earth outside of the Holocene’s window of environmental variability, giving rise to the proposed Anthropocene epoch.

[–] [email protected] 4 points 2 months ago (1 children)

Check the post history of the person you're replying to, they're pretty blatantly ridiculous.

[–] [email protected] 4 points 2 months ago* (last edited 2 months ago) (1 children)

My general operating principle is that even if this person is engaging in bad faith, there may be other people lurking who want this info or who have similar questions who would be too nervous to comment or ask. So I give info anyway for others.

[–] [email protected] 4 points 2 months ago

That's a very good point! I found your post interesting, myself, so thank you.

News

This planetary boundaries framework update finds that six of the nine boundaries are transgressed, suggesting that Earth is now well outside of the safe operating space for humanity.