They're blue, and nothing about coal would be less impact.

Coal starts with pulling down entire mountains to get to the coal. The whole process starts with environmental destruction and that's how it ends.

The thermal mass of the panels is no where near significant. Especially compared to a run away greenhouse effect we know coal to cause.

It's about the localised thermal effect in a desert https://www.westernsydney.edu.au/hie/stories/news_archive/so...