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silence7@slrpnk.netM to Climate - truthful information about climate, related activism and politics.@slrpnk.netEnglish · 1 year ago

Last month marked the world’s hottest July on record, US scientists say | This year could beat 2023 for the hottest year on record as 15-month heat streak extends, according to NOAA

www.theguardian.com

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Last month marked the world’s hottest July on record, US scientists say | This year could beat 2023 for the hottest year on record as 15-month heat streak extends, according to NOAA

www.theguardian.com

silence7@slrpnk.netM to Climate - truthful information about climate, related activism and politics.@slrpnk.netEnglish · 1 year ago
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Last month marked the world’s hottest July on record, US scientists say
www.theguardian.com
external-link
This year could beat 2023 for the hottest year on record as 15-month heat streak extends, according to Noaa
  • IninewCrow
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    1 year ago

    Hottest July so far.

    • PaleRider@feddit.uk
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      1 year ago

      Coldest July of the rest of your life…

      • WalrusDragonOnABike [they/them]@lemmy.today
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        1 year ago

        Given the la nina cycle hasn’t started yet, the next couple of years expected to be cooler? But one of those could be the coolest July for a very long time.

        • IninewCrow
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          1 year ago

          a very long time

          Could mean decades … or millenia

          • WalrusDragonOnABike [they/them]@lemmy.today
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            1 year ago

            Yeah. Wouldn’t be confident to say within our lifetime given things like Yellowstone eruption or nuclear winter could change that.

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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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