The US has concentrated pollution sources in areas where poor or black people live. The troll and SCROTUS are eliminating the regulations to keep this in check.

Sometimes poor people are economically compelled to move near pollution sources because housing elsewhere is too expensive for them. Sometimes the pollution sources are built in areas that poorer people are moving into.

If the pollution affected everyone in the US equally, that would avoid one unjust aspect, but the pollution would still make people sick. Therefore I think we should give priority to reducing pollution and the harm it does, and spreading it more equally should be a secondary goal.

We need not argue about how to site coal-burning generators, when it makes no sense to build any new ones and we need to shut them all down as soon as possible. On the other hand, stored coal ash could be moved into safer facilities that are near fewer people, until we have the technology to render it harmless.