Can't we just outlaw keeping lawns and dark toned roofs to combat climate change?
Lawns are completely useless ecologically and widespread as hell, even putting 1 tree per 5 m2 would greatly increase the treecount globally and therefore save more co2. The just look good but do not add any value besides that.
Making all new built roofs and renovated parts of old roofs whitish like snow would benefit from the albino-effect and cool down earth by a ton.

Pic not related.