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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[–] [email protected] 43 points 1 year ago (2 children)

That is the way humans have always been and it is not just the USA. I will be dead before the worst affects hit is the justification many think but few are willing to express. Around the world ground water is being used at rates that are thousands of time faster than replenishment.

When the water runs out, mass starvation will soon begin.

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

But it's not everyone, not always. In Europe we started sustainable forest management in the 18th century, so for at least a couple hundred of years people are acting differently. Why?

[–] [email protected] 4 points 1 year ago

Yeah but it started after Europe was basically logged to the ground for wood or agriculture.

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

Or a big drop in animal agriculture and biofuels

[–] [email protected] 11 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.

[–] [email protected] 3 points 1 year ago (2 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.

[–] [email protected] 3 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.

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

What proportion of total co2 emissions stem from food production?

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

About 30% of global co2 emissions come from food production.

[–] [email protected] -1 points 1 year ago

the last numbers i saw from fao were closer to 20%

[–] [email protected] -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

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago) (1 children)

Let's stop to think about this. The US is farming water intensive crops in the desert. Iowa and surrounding states, some of the best farmland in the world, grows a shitload of corn to make ethanol to add to ICE engine fuel. The energy return on investment is minimal and ethanol trashes small engines that usually aren't designed to run on it.

We could stop farming in the desert and use our premier farm land to grow food instead of for making low quality ICE fuel. We should be phasing out ICE engines as much as possible anyway, so we can get a double whammy here.

[–] [email protected] 3 points 1 year ago

I’m not disagreeing with that at all.