> "I bet a concerted roll-out of nuclear + solar could cut US emissions due to electricity generation by at least 30% over the next 20 years." 30% over 20 year

> "I bet a concerted roll-out of nuclear + solar could cut US emissions due to electricity generation by at least 30% over the next 20 years." 30% over 20 years in unambitious. The UK has cut grid carbon emissions by 60% in the past 10 years. (2010 average: 467g/kWh. 2019 average: 189g/kWh). Emissions continue to decline every year. This was largely achieved by closing coal power plants, and building a lot of wind (both on and off-shore), solar, biomass, and new interconnections with continental Europe. No new nuclear was built in this time. Wind is now the second largest source of electricity in the UK, after natural gas. (But natural gas usage is also declining!)