this post was submitted on 06 Sep 2023
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Climate - truthful information about climate, related activism and politics.

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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:

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[–] Aksamit@slrpnk.net 12 points 1 year ago
[–] WhatAmLemmy@lemmy.world 12 points 1 year ago* (last edited 1 year ago) (2 children)

"Could" lol... It's already impacting rice yields; probably many others.

[–] silence7@slrpnk.net 2 points 1 year ago

Timing is tough to have narrow certainty on

[–] masterofn001@lemmy.ca 2 points 1 year ago

Inflation is a euphemism for corporate fuckery.

Also, cover for the already well under way destruction of food chains and supply lines.

We are already at DEFCON fucked.

[–] Burn_The_Right@lemmy.world 4 points 1 year ago (1 children)

2050?! Fucking liars. The 2030's is more accurate.

[–] silence7@slrpnk.net 0 points 1 year ago

That's relatively unlikely still.

[–] theendismeh@slrpnk.net 3 points 1 year ago

And then there are pandemics among crops to worry about:

“Never again should a major cultivated species be molded into such uniformity that it is so universally vulnerable to attack by a pathogen,” wrote plant pathologist Arnold John Ullstrup in a review of the matter published in 1972.

And yet, today, genetic uniformity is one of the main features of most large-scale agricultural systems, leading some scientists to warn that conditions are ripe for more major outbreaks of plant disease.

“I think we have all the conditions for a pandemic in agricultural systems to occur,” said agricologist Miguel Altieri, a professor emeritus from the University of California, Berkeley. Hunger and economic hardship would likely ensue.

[–] mo_ztt@lemmy.world 1 points 1 year ago (1 children)

s/2050/like 2 years, maybe 5-10 at absolute most/

I mean I have no particular expertise but it definitely seems like things are accelerating

[–] silence7@slrpnk.net 2 points 1 year ago

There could be some local disaster where you are tomorrow, but it's unlikely. This is similar: it's low-probabilty in any given year

[–] zoe@infosec.pub 0 points 1 year ago

famine is man-made.