Climate - truthful information about climate, related activism and politics.

7169 readers
581 users here now

Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

founded 2 years ago
MODERATORS
501
 
 

Access options:

502
503
 
 

New preliminary research suggests that a combination of higher atmospheric CO2 and hotter temperatures contribute to a reduction in nutritional quality in food crops, with serious implications for human health and wellbeing.

504
505
506
507
 
 

I'll note that the converse also applies — because warmer air can hold more water, it can remove more water through evaporation too, so droughts can also end up being worse.

508
509
 
 

Summers have been heating up for decades, and they’ll only get hotter if heat-trapping pollution continues — making future summers in Minneapolis feel more like current summers in Tulsa.

With high levels of heat-trapping pollution, future summer high temperatures in 247 major U.S. cities would heat up by an average of 3.6°F by 2060 and 7.9°F by 2100. This analysis shows how future warming could transport a city’s current climate to an entirely different part of the country — or the world — with reduced commitments to lower carbon pollution .

On average, summer high temperatures across the 247 cities analyzed are projected to increase 3.6°F by 2060 and 7.9°F by 2100. Mitchell, S.D. is projected to warm the most by 2100 (11.1°F), when it will feel more like Wichita Falls, Texas.

By the end of this century, summers in the cities analyzed would shift to resemble hotter locations an average of 437 miles to the south. For 16 U.S. cities, there is no equivalent in North America to how hot they’d be in 2100. Their future summers are more similar to current conditions in Pakistan, the Middle East, and North Africa.

510
511
512
513
514
515
516
 
 

cross-posted from: https://lemmy.sdf.org/post/38254683

Archived

  • Torrential rains drench large swathes of China
  • Displacing thousands and exposing China's ageing flood defences
  • A high-pressure system is also baking other parts of the country
  • Extreme weather is increasingly challenging Chinese officials

[...]

The world's No.2 economy faces growing threats from extreme weather, which meteorologists link to climate change. Each year, the impact threatens to wipe out tens of billions of dollars worth of commercial activity, alongside loss of life, as ageing flood defences are overwhelmed and infrastructure gaps - such as limited access to air conditioning - are exposed.

[...]

517
 
 

An executive order directs the treasury secretary to strictly enforce the One Big Beautiful Bill Act’s elimination of tax credits for wind and solar power.

Access options:

518
 
 

Parts of South Korea and Japan have had short rainy seasons this year. Scientists say that climate change has helped make the summer rains more unreliable.

519
520
 
 

The fact that police are routinely dragging protesters off the streets for a crime they almost always fail to charge them with amounts to an abuse of their powers and an assault on the right to protest.

521
522
523
 
 

Unfortunately only outlet reporting on this so far.

I don't expect a Republican-controlled congress to do anything about this

524
525
view more: ‹ prev next ›