this post was submitted on 29 Aug 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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[–] silence7@slrpnk.net 1 points 1 year ago (2 children)

Or a big drop in animal agriculture and biofuels

[–] Pons_Aelius@kbin.social 10 points 1 year ago* (last edited 1 year ago)

That will also happen but it will not stop the hunger.

Food exports will dry up as countries hold their food for their own people (See: India's ban on rice exports) and the countries that cannot feed their own populations will implode.

The Arab spring started as protests over a jump in food prices.

[–] w00tabaga@lemm.ee 0 points 1 year ago (1 children)

To think that getting rid of those two things is a silver bullet is naive.

People like to shit on animal agriculture. However, you have to consider that only about 3% of the earth’s entire surface is suitable for agriculture, and even less to grow most of the crops we eat. Animals can be raised on land that’s not suitable for crops. It spreads out where we use our water, which is a good thing. Animal agriculture also gives us a plethora of goods besides just meat, and again, it’s goods from land that otherwise we cannot farm.

As with all things in life, there are better and worse ways to go about it, but animal agriculture isn’t ruining the planet in itself.

Secondly, the problem with biofuels is it should be replaced with nuclear, and getting hungry isn’t going to change that, a lot of people are just going to die from starvation and violence directly caused by starvation.

[–] 9tr6gyp3@lemmy.world 4 points 1 year ago (2 children)

Animal agriculture is not ruining the planet itself, yes.

But

Animal Agriculture emits nearly 60% of greenhouse gases from food production.

[–] Pons_Aelius@kbin.social 3 points 1 year ago

What proportion of total co2 emissions stem from food production?

[–] w00tabaga@lemm.ee -1 points 1 year ago

About half of production between that and crops? That’s actually not bad. Not bad besides the total, but that’s a good split imo