this post was submitted on 11 May 2024
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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 world’s largest direct carbon capture plant just went online (www.engadget.com)
submitted 6 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
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[–] klisklas@feddit.de 25 points 6 months ago (1 children)

The problem is, projects like this turn our heads away from the real problems. Politicians and investors will justify not reducing greenhouse gas emissions because we have this new technology which will save us all. Fact is, climate change has already been solved, we know what we have to do since decades. It is not a problem which will be solved by technology, it is a political problem. In addition to that people will say that they are doing enough by investing in carbon capture but will not address the biodiversity crisis which can only be addressed by proposing real environmental policy change.

[–] kalkulat@lemmy.world 3 points 6 months ago* (last edited 6 months ago)

It should be called C02 capture (make the CO2 part specific). The carbon which was burned was already safely captured in the ground, where it should have stayed. Then it was burned and partly turned into CO2. Lots of it. Who is being -paid- to concentrate the stuff? and bury the stuff? And keep an eye on it? Who will pay that bill?

In Satartia Mississippi on February 22 2020, a CO2 pipeline broke because of a mud slide. 45 people were hospitalized after the 21,600 barrels of liquid CO2 rolled downhill towards their town. https://www.desmoinesregister.com/story/money/agriculture/2022/09/11/here-minute-details-2020-mississippi-co-2-pipeline-leak-rupture-denbury-gulf-coast/8015510001/

Once you've captured this particular form of carbon, you have to store it somewhere. FOREVER. Unlike nuclear waste, it's only visible when it's compressed. Does this mean you have to take someone's word that it was captured? It -does- mean you have to accept that it's safely and securely stored. FOREVER. 'We promise.'

The whole thing is at best sketchy. The same money could be invested in real, tangible generation of renewable energy. Without having to take some sketchy industry's word for it. And without potentially endangering the lives of the people who'll have to live with it next door. Would you rather live near a windmill, or a hole with 36,000 tons of CO2 in it?