this post was submitted on 31 Jul 2025
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It's ok. I'm already terrified.
You should be terrified that reduced cloud-cover due to the removal of sulfer from marine fuels over the last few years has had dramatic impact, increasing global temperatures.
High-enough temperatures impede plant respiration, so no, reducing carbon output alone may not be enough to keep the planet livable in a term short-enough to prevent ourselves and so many other species from going extinct.
Reducing global temperatures directly may be the only way to stay alive long enough for the effects of reduced/net-zero carbon output to ever be seen by living human eyes.
What is the relative contribution to global warming from reduced sulfur from marine engines, versus increased CO2 and greenhoue gas emissions worldwide?
Because, from this, it appears shipping is not the bigger contributor.
https://en.wikipedia.org/wiki/Environmental_impact_of_shipping
Who said anything about "the bigger" contributer? No one is calling increased cloud-cover the solution - hell, I literally stated we need it to buy time, because spoiler alert: it will take decades if not centuries for the extra CO2 we've put into the atmosphere to filter back out. We could easilly reach net-zero or net-negative CO2 emissions only to all end up dead well before seeing any positive effects.
In case you need this spelled out also: No-one is suggesting we should put sulfer back into marine fuels.