this post was submitted on 25 Jun 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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The climate case for mock meats is clear. But who can afford them? (grist.org)
submitted 4 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
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[–] brlemworld@lemmy.world 2 points 4 months ago (1 children)

Is it? What is the overall net carbon impact in the manufacturing process? I'm all for this innovation but it's gotta be better than what we have now.

[–] usernamesAreTricky@lemmy.ml 4 points 4 months ago

Not just transport but all processes in the supply chain after the food leaves the farm — processing, transport, retail, and packaging — mostly account for a small share of emissions.

This data shows this is the case when we look at individual food products. However, studies also show that this holds true for actual diets; for example, researchers Vilma Sandström and colleagues studied the footprint of diets across the EU. Food transport accounted for only 6% of emissions, whilst dairy, meat, and eggs accounted for 83%.

https://ourworldindata.org/food-choice-vs-eating-local