this post was submitted on 28 Jun 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.

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America is an inferno with smoke in the North, heat waves in the South (www.washingtonpost.com)
submitted 2 years ago by silence7@slrpnk.net to c/climate@slrpnk.net
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Scientists said climate change helped shape the weather conditions that were causing misery and putting lives at risk from Mexico to Canada.

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[โ€“] poVoq@slrpnk.net 5 points 2 years ago (1 children)

The smoke has reached Portugal as well now. Was a strange gloomy day here today.

[โ€“] silence7@slrpnk.net 2 points 2 years ago* (last edited 2 years ago)

Yeah, I've been watching fire.airnow.gov:

Screenshot from fire.airnow.gov. Air quality and smoke map showing smoke from wildfires on June 28, 2023 in North America and Western Europe. North America has air quality monitoring data showing air quality index, and smoke is overlaid in shades of gray. Smoke streches out from Canada into US, across atlantic ocean, and into Spain, France, Portugal, UK, and Ireland. The densest smoke in Europe is over Portugal and parts of spain

Edit: it looks like the US government didn't buy particulate sensor data from PurpleAir for outside of North America. You can see that for Europe here