Look up marine cloud brightening. In 2022, international policy cleaned up shipping fuels. Without the sulfur, however, the “ship tracks” ceased. Without the m

Look up marine cloud brightening. In 2022, international policy cleaned up shipping fuels. Without the sulfur, however, the “ship tracks” ceased. Without the marine clouds seeded by dirty fuels, the warming impact of shipping increased by 30%. We could reduce it again by 70% or more without dirty fuels, with approaches like aerosolizing salt water. Global warming mitigation will take a lot of little things. It’s not one big effort—and people won’t sue for the same reason oil companies aren’t liable for weather. My point is that it can’t just be about carbon. That’s not actually the root cause. It’s the heat balance. We can either absorb less or radiate more. Both offer solution spaces.