Yep, it’s true: people in Britain are eligible for subsidized insulation. See the good things that can happen when one’s country is a signatory to the Kyoto Protocal?
For those of us in the U.S., you might want to check out the Department of Energy’s page on tax credits for energy-efficient things here. This includes a credit for up to 30% ($1200 max.) of the cost of installing insulation.
Today’s mitzvah: Check out The People’s Ratification Project, which is a petition campaign to get the U.S. on board with the Kyoto Protocol.