30-50% of electricity is going to renewables, and how. Above that, intermittency and storage is significantly challenging.

Don't forget jets. Jets are mega-emitters and have very few electrification options because lithium-ion has about a 50th the energy per mass as jet fuel.

For heating, cheap, fracked natural gas is dominating in the US, with a battle cry of "better than coal"! Unfortunately it's still extremely high carbon. They do amazing PR though.

China is building a few supercheap swimming pool TRIGA nuclear reactors specifically for district heating in northern regions for winter, where coal is the only alternative. This is wild, but makes sense. They aren't usually used commercially because the temperatures are too low for conversion to electricity. But for straight heat it makes plenty of sense.

Also heat pumps can help but won't get you there alone.