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Earth Deep in Danger Zone Beyond Safe Planetary Boundaries, Study Warns (www.sciencealert.com)
submitted 1 year ago by abobla@lemm.ee to c/climate@slrpnk.net
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[-] nature@slrpnk.net 20 points 1 year ago

For biodiversity, for example, if the rate at which species disappear is less than 10 times the average extinction rate over the last 10 million years, that is deemed acceptable.

In reality, however, extinctions are occurring at least 100 times faster than this so-called background rate, and 10 times faster than the planetary boundary limit.

Will the miracle of life actually survive our self-induced extinction?

[-] Cheebus@lemmy.world 14 points 1 year ago

Life will survive beyond the human generated extinction. Mother natures been through worse, she will shake us off and move on.

this post was submitted on 16 Sep 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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