Transportation and energy production make up a majority of CO2 emissions in the U.S. and probably most industrialized countries. As an individual person, you c

Transportation and energy production make up a majority of CO2 emissions in the U.S. and probably most industrialized countries. As an individual person, you can get rid of gas-burning cars (perhaps replace with an EV if you need a car) and put solar panels on your roof if that's an option. At the state and national level, though, a lot more could be done. Ground transportation could be fully electrified. (I think the quickest way to get there is not to wait for battery technology to get better but rather just electrify the major freeways so that cars and trucks can charge while they're moving, and people won't need huge, heavy, expensive batteries to get anywhere.) We could also expand solar and wind investments. To even out power production and consumption, we could finance the construction of intercontinental high-voltage DC lines, so we can buy solar power from the Sahara in the middle of the night and sell to Europe or wherever in the daytime. We could invest in battery manufacturing. Most U.S. made electric vehicles are basically luxury supercars that use expensive batteries that require large amounts of nickel and cobalt. What we need to get away from burning gas is mass-production of lithium iron phosphate cells (or whatever technology that replaces it) which have somewhat lower energy density but use cheaper, more readily available raw materials and are much safer and much more durable. This is the kind of technology we need to make cheap cars for ordinary middle-class people with low environmental footprint. For that matter, it would be great if EV tax credits applied to conversions as well as new vehicles. Hardly anyone converts vehicles now because it's expensive and high-effort, but if there was a simple kit to convert, say, a semi-recent Honda Civic to electric that can be installed easily by a mechanic and doesn't require any custom fabrication, maybe we'd have a lot more people going that route. Especially if it was subsidized to the point where the out-of-pocket expense is low. More nuclear plants might be a good thing too, but it's not absolutely essential.