A California coalition is tackling one of the hardest, unsexiest parts of climate policy

Decarbonizing buildings: it’s tedious, but oh so necessary.

Ask most people about reducing carbon emissions to tackle climate change and they will mention solar panels or electric cars — the sexy stuff.

But scaling up the sexy stuff is only half the job.

The challenges of decarbonization fall into four basic buckets. There’s the electricity grid, which is rapidly getting less carbon-intensive as coal fades and renewables rise. There’s transportation, where there’s a long, long way to go...