this post was submitted on 10 Sep 2023
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Climate - truthful information about climate, related activism and politics.

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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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[–] yetAnotherUser@feddit.de 5 points 1 year ago

That's my point. Cars can easily be replaced, not abandoned. In my example, trains are sufficient to get to most cities with comparable speed. With enough funding for public transport - which isn't even that much compared to maintaining roads and bridges - you could remove 95+% of cars.

Yet even here public transport is too unreliable too little service (note that I didn't mention buses) and apparently people will use cars as long as there is a minor time benefit.

To illustrate my point: even though the bus service is mediocre regardless of where you live in my town, you are within one mile of everything you'd need on the daily basis (supermarket, pharmacy, bank...). However, there is a roughly 50 : 1 difference in parking spaces to bicycle racks because for some reason you either walk or drive a car.