Currently to do it properly it's by killing poor people.

I don't think so, our CO2 emissions aren't coming from the poor.

Solar, wind and nuclear kill poor people?

Telling poor people that the only power they are allowed to have is too expensive for them to afford does result in their having shorter lifespans. Energy is one of the keys to modernity; you can't power an MRI machine with UN-subsidized corn.

If you provide them with solar, wind, nuclear, geothermal, tidal, or possibly fusion power at costs lower than or equal to organic fuels, they will not suffer (and might benefit).

Who is telling poor people that? Nobody. Ever been to Africa? Poor people don't have access to energy not because of environmental regulation, but because they are poor. Coal mining and combustion kill far more poor people than this straw man,

Lack of MRI scanners doesn't shorten life spans significantly, lack of clean water and good nutrition is what's significant.

Clean water and good nutrition come from cheap energy.

The Saudis can go a hell of a lot cheaper for oil.

Unless you're willing to kill people we are going to have a mess to clean up in the future.

Which is ok, because in the future tech will be way more advanced.