Greening This Old House

ENLARGE PHOTO+

Photo-Illustration by Viktor Koen for TIME

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The stimulus package includes some $8 billion for weatherization programs for low-income households, but that will cover only a small slice of the country's housing stock. To promote the greening of existing buildings, the National Trust last month launched the Preservation Green Lab, a think tank based in Seattle, and is working with members of Congress to pass energy-efficiency legislation that would increase rebates and subsidies to cover as much as half the cost of a green retrofit. Such incentives are vital. Although lower utility costs mean upgrades will pay for themselves over time, the up-front cost of better insulation or double-pane windows can be prohibitive, especially during a recession.

In the meantime, you can make small changes to begin greening your home. You don't need solar panels or rooftop wind turbines. You just need a good caulking gun. Start by thinking of your house as a submarine, and plug the leaks in your walls, doors and windows. Be sure to insulate the attic and the basement, since up to 20% of energy costs can come from heat loss in those spaces. A home energy audit is also a good idea; energysavers.gov details how to do one yourself as well as how to go about hiring a professional. So be like Lincoln and savor the summer breezes, but avoid winter drafts.