was from an underground volcano. Sunlight didn't have a thing to do with it.

Less cloud cover means more direct heating of the oceans by sunlight.

We're in a positive feedback loop now, god help us.

It's difficult to find information on how much of our road surface is concrete and how much is asphalt. However, when the interstate highway system was built, starting in the 1950s, concrete was used more than asphalt due to its longer lifespan.

Both are still in use in roadbuilding. But concrete did not "stop being used" in the 1970s. Not at all. They're still pouring reinforced concrete highways just about everywhere.

used. When I grew up everything was concrete and light covered except the roofs of buildings and homes. Now all the streets are all asphalt but the roofs have gone white to cut down on the heat. As kids we played in the streets barefoot. Now it would roast your feet on the black surface.

No science involved as my last science class was in the dark ages in the 60's. Just a crazy observation.

I just remembered that some city were trying to get buildings to put on the white roofing instead of just the black tar to prevent the heat islands.

that talked about this. It discussed the change in pan evaporation rates which is a tool farmers use for calculating water needs for crops and livestock. The rates have been tracked for over 50 years so there is solid, long-term data. Anyway, the documentary is definitely worth watching.