Paul GrahamVerified account

Not quite what you're asking for, but if the US emitted the same amount of CO2 per capita as France, it would produced ~3.7 gigatons of CO2 and the total world production of CO2 would be reduced by more than 10%. (See https://data.worldbank.org/indicator/EN.ATM.CO2E.PC?locations=US-FR … and https://www.iea.org/publications/freepublications/publication/GECO2017.pdf ….)

China emits significantly less CO2 per capita than the US, but due to its huge population, it would have approximately the same effect on global CO2 emissions.

I think there are solid reasons to believe that there is at least as much room for improvement in the nuclear industry as SpaceX demonstrated there was in the aerospace industry.

For sure! YC has funded several nuclear startups and hopes to fund more.

Can I tag this with a request for back of envelope calculation for how much less global warming would happen if we required US bound freighters to have emissions regulations. I bet it’s a multiplier over US power station emissions.

3.5-4% of global GHG emissions come from shipping (global, not just US), and the volume of shipping has more than 2x’d in the last 10 years (https://www.statista.com/statistics/264117/tonnage-of-worldwide-maritime-trade-since-1990/#0 …) so today’s figure is higher than historical average. US electricity contribution to GHG~5% of world total today