As discussed on Instapundit and elsewhere in the blogosphere, here's a truly heartening article. Compact fluorescent lightbulbs--not so good twenty years ago--are now much better. Enough so that we are about to save a lot a electricity in the U.S. and simultaneously help the environment significantly.
It's another example of capitalism's ever-astonishing capacity to create gains for everyone.
But by far the best part is who the agent of the change is going to be. The much-feared, much-reviled . . . Wal-Mart. The irony greatly entertains.