this post was submitted on 09 Aug 2024
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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.

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[–] theMechanic@sh.itjust.works 9 points 3 months ago (7 children)

Sensationalist headline as far as I can tell.

(I wrote the same in a different sub as this seems to have been posted all over)

Comparing carbon emissions and only telling that it is more than another plants/industrial sites, is pretty useless. It needs to be normalized to emissions/kWh so it would be a useful comparison. That alone gives me pause as to how accurate/honest the comparison is.

For example: the plant could be the largest in the country which would mean emoting more is normal. Or it could be the smallest and have a disproportionate emission rate.

It also seems like the spokesperson of the plant claims that the wood is sourced from sustainably managed forests, and though I won't take that at face value, I see how that could further mitigate impact compared to what the sensationalist headline claims.

I don't have time right now to do much more research on this specific site such as where the forest is, transportation emissions, processing emissions, etc. However, it is clear that the author of the article didn't do any research either, and/or intentionally cherry picked a way to display the data to come up with an article that would drive traffic.

[–] ExFed@lemm.ee 2 points 3 months ago* (last edited 3 months ago) (1 children)

Yes, the reporting is incredibly lazy. Such is The Guardian's standards.

Drax is the largest power station in the UK. Assuming the figures in Wikipedia are in the same ballpark as the nameless report that The Guardian is referencing without citation, Drax has a capacity of 3.9 GW. Ratcliffe-on-Soar Power Station is capable of producing about 2 GW of net electricity. It's doubtful they're actually running either to capacity, but we can estimate that Drax produces roughly double the power as Ratcliffe-on-Soar. That means Drax is still roughly emitting double the carbon per watt.

It would be nice to know whether that figure includes biomass transport across the Atlantic...

edit: typo

[–] theMechanic@sh.itjust.works 2 points 3 months ago

You said it, very lazy

I'm not familiar with how the UK decides on dispatching order for power plants, but if they follow a similar protocol as the US where is a combination of marginal cost and emissions, I wound in then expect that the bio-mass plant (with lower expected emissions) will be dispatched more often than the coal fire power station.

That would significantly affect the emissions/kWh

Finally, like you said we would need the transportation emissions and I would ask too for info on whether the source of the wood is a sustainable managed forest. If it is, that wood has near zero emissions as the forest regrows (except for processing emissions)

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