Eco Friday

Eco Friday.

* Ben Bova is agitating in The Washington Post for a massive orbiting solar array that would beam energy down to earth in microwaves. More at Treehugger and Wikipedia.

* The Vatican, too, has gone solar.

* Barack Obama would regulate carbon dioxide as a dangerous pollutant under the Clean Air Act, the U.S. presidential candidate’s top energy adviser said.

* And a new alt-energy economy may be blooming in the U.S., with big infrastructure investments in California, Texas, and elsewhere.