this post was submitted on 31 Aug 2023
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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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New study: 12% of individuals are responsible for 50% of US beef consumption (www.mdpi.com)
submitted 1 year ago by pizzaiolo to c/climate
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[–] Exeous@lemmy.world 117 points 1 year ago (9 children)

This is the same study posted somewhere else. The survey is flawed in that they asked what people ate in the last 24 hours.

That simply means that those people ate a lot in the last 24 hours. Should have been over a week or a month to get a better distribution.

“We analyzed 24-h dietary recall data from adults (n = 10,248) in the 2015–2018 National Health and Nutrition Examination Survey (NHANES).”

[–] Enkers@sh.itjust.works 13 points 1 year ago* (last edited 1 year ago) (1 children)

I responded to your comment before, but didn't sufficiently think it through, so I deleted my previous response.

You raise a good point, and they do indeed acknowledge this flaw in the study:

One limitation of this work is that it was based on 1-day diet recalls, so our results do not represent usual intake. Averaging both days of data available on the NHANES would not address this problem, would reduce our sample size by 15%, and would mix recall methods between an in-person interview (day 1) and one done on the phone (day 2). Still, as a check, we examined day 2 and found the same associations with gender and MyPlate guidance.

[–] Nyssa 2 points 1 year ago

Yeah, I feel this is an early report to decide if a larger study is warranted

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