this post was submitted on 03 Nov 2023
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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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Delhi air pollution spikes to 100 times WHO health limit | Records 999 AQI on Nov 2. (www.theguardian.com)
submitted 1 year ago by [email protected] to c/[email protected]
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[–] [email protected] 5 points 1 year ago* (last edited 1 year ago) (1 children)

The air quality in Delhi is usually around 150-250. (Quite horrible as it is)

This huge spike in AQI is caused by unregulated stubble burning in the neighbouring states. Farmers harvest rice and burn the leftovers so that they can hurry up and plant the next crop.

[–] [email protected] 4 points 1 year ago (1 children)

Makes sense, I'd never even heard of AQI hitting 999 before; it would be crazy if it were a more consistent thing there. Still crazy to think about ~200 being the norm when you're not even supposed to walk outside at that level, according to WHO an CDC. It's apparently as low as 100-150 that exercise becomes bad for you rather than improving fitness based just on how much more air you have to breathe.

[–] [email protected] 2 points 1 year ago

Yep. This pretty much happens every year. Oct to November.

Pollution is a huge problem in this country. Few take it seriously because for most people, life here is all about earning enough to eat and make it to tomorrow.