The phaseout is now years ahead of schedule, in large part due to natural gas taking over much of the generation. Many coal plants were either replaced by gas plants or converted to burn natural gas instead. Electricity generated from natural gas puts out roughly half the amount of greenhouse gas emissions as compared with coal.

Ok, so fossil fuel is still the primary driver. But well, incremental improvements do matter. Zeroing out coal this year is a great milestone.

The share from renewables is growing too, even if a bit slowly.