this post was submitted on 30 Jul 2024
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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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Air New Zealand becomes first major carrier to drop climate goal (www.bbc.com)
submitted 3 months ago by schizoidman@lemm.ee to c/climate@slrpnk.net
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cross-posted from: https://lemmy.world/post/18104463

Air New Zealand has abandoned a 2030 goal to cut its carbon emissions, blaming difficulties securing more efficient planes and sustainable jet fuel.

The move makes it the first major carrier to back away from such a climate target.

The airline added it is working on a new short-term target and it remains committed to an industry-wide goal of achieving net zero emissions by 2050.

The aviation industry is estimated to produce around 2% of global carbon dioxide emissions, which airlines have been trying to reduce with measures including replacing older aircraft and using fuel from renewable sources.

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[–] Tiresia@slrpnk.net 2 points 3 months ago

A good reason would be to get ahead of the bad press and control the narrative. Even something as minor as a bad turn of phrase in an internal e-mail could force them to make a press release early, in that case becaues of the risk of it being stripped of context and leaked to the press by corporate spies or well-meaning whistleblowers in a way that looks way worse than a promise to get around to it later.

Not sure how likely this is compared to it being a fig leaf over cancelling the target altogether.