Articles on Energy efficiency

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The Energy Department recently finished modernizing the B61-12 nuclear bomb, extending its service life by at least 20 years. Devan Halstead, U.S. Air Force

From watts to warheads: Secretary of energy oversees big science research and the US nuclear arsenal

The Energy Department has a dual mission with a heavy science focus and manages large, expensive programs, many of which are behind schedule and over budget.
Replacing windows and adding a heat pump in place of a furnace can save energy, reducing emissions. Tristan Spinski for The Washington Post via Getty Images

Carbon offsets can help bring energy efficiency to low‑income Americans − our Nashville data shows it could be a win for everyone

Insulating attics, replacing windows and adding heat pumps can save money and reduce emissions − if residents can afford the upgrades. Carbon-offset purchases by local companies could help.

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