this post was submitted on 07 Jan 2024
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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.

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[–] [email protected] 0 points 1 year ago (4 children)

>Most cropland is used for livestock feed, exports or is left idle to let the land recover.

this is pretty ambiguous syntax.

it does not plainly say what you claimed

[–] Pipoca 1 points 1 year ago (3 children)

Look at the numbers on the map behind the text.

77.3 m acres of crops eaten directly by people.

127.4 m acres of feed crops. 52 m acres fallow.

The feed crops alone dwarf what's eaten by people. Both feed and fallow is over double the number of acres of crops eaten by Americans.

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

this assumes that none of the exports are eaten directly.

if this is the best you have, you are basing a pretty heavy claim on a pretty thin interpretation. maybe you can find a better source, but I doubt it. I think you will find that people eat 2/3 of global crop calories. the method of excluding exports from food-uses and including them with animal feed seems sloppy at best, but possibly dishonest.

[–] Pipoca 1 points 1 year ago (1 children)

Sure - if you assume that fewer than 17.1 m acres of the 62.8 m acre category of "other grain and feed exports" (i.e. less than 27% of it) are animal feed, and none of the wheat exports end up in feed, then the total acreage of food eaten by someone and food eaten by animals are equal.

That seems pretty unlikely, though.

Global numbers aren't great, because diets are really different in different countries. The meat eaten by the average American dwarfs the amount of meat eaten by the average Latvian or Peruvian person.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago)

>Global numbers aren’t great, because diets are really different in different countries. The meat eaten by the average American dwarfs the amount of meat eaten by the average Latvian or Peruvian person.

sounds like focusing on American diets is cherry picking. climate change and species extinction are global issues, do evaluating global systems seems more apt than the diets of 3/80 of the population