Worth noting that this is just solar without grid-scale storage so it can't quite offer the adaptability of coal. PV + storage is closing in fast though so soon it'll be better in all regards.
Climate - truthful information about climate, related activism and politics.
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
Almost universally, coal is cheap only because it's subsidized under dubious energy security et al. schemes: besides explicit monetary subsidies, government also helps evict people from the site of your open-cast mine, government makes sure you can sell your energy profitably, government turns a blind eye when you don't meet environmental guidelines, government believes in "Clean Coal" and gives you money for research, ...
Many of the same things are true of other types of energy generation as well, of course.