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silence7@slrpnk.netM to Climate@slrpnk.netEnglish · 4 months ago

If we want to use Direct Air Captur to limit overall warming to 1.5°C, while emitting enough to reach 2.5°C, DAC would need to use something like 30% of all electricity consumed over the next 80 years

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If we want to use Direct Air Captur to limit overall warming to 1.5°C, while emitting enough to reach 2.5°C, DAC would need to use something like 30% of all electricity consumed over the next 80 years

silence7@slrpnk.netM to Climate@slrpnk.netEnglish · 4 months ago
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  • silence7@slrpnk.netOPM
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    4 months ago

    If this was the only limit (its not), and you were willing to dump large parts of economic output into something which isnt turning a profit. Those are really big issues

    • ryannathans@aussie.zone
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      4 months ago

      Can you define economic output

      • silence7@slrpnk.netOPM
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        4 months ago

        How about total cost of all goods and services. Pretty standard GDP way.

        • ryannathans@aussie.zone
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          4 months ago

          Sounds like a good way to stimulate significant parts of the economy, infrastructure-like projects generally do

          • silence7@slrpnk.netOPM
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            4 months ago

            Its a lot cheaper and broader to avoid burning fossil fuels in the first place.

            • ryannathans@aussie.zone
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              4 months ago

              Is it actually cheaper? If so should be easy to subsidise the greener options

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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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