[MontaniSemperLiberi]

Goodness.

“Making roads and roofs a paler colour could have the equivalent effect of taking every car in the world off the road for 11 years, Chu said.

It was a geo-engineering scheme that was “completely benign” and would keep buildings cooler and reduce energy use from air conditioning, as well as reflecting sunlight back away from the Earth.”

As sanity check, if painting roofs white saves “11 car-years” of energy and it’s so easy, why don’t we do it already?

Dr. Chu fails the sanity check.

[reformedliberal]

Does it never snow in their world?

What will they use to paint over shingles?

Who will do this work?

Have they developed a white asphalt? Will their paint last very long on top of a road surface?

They are all insane.

[Tolerance Sucks Rocks]

They could make roads a paler color by using concrete exclusively, but would they ban black fog striping from such roads?

[Gondring]

It was done for a while in the 70s, when energy costs were high in relative terms (for example, see SWEPCO, which has been around since 1933). When energy costs dropped, the market fell for such products, but it does make sense under the right market conditions.

[UCANSEE2]

As sanity check, if painting roofs white saves “11 car-years” of energy and it’s so easy, why don’t we do it already?

Uh... because you have to paint them black each winter.

Nobody likes painting their roof twice each year.