The federal government estimates about 30% of energy used to heat and cool building in the U.S. goes out the window, which costs home and business owners around $40 billion a year, according to a federal study. Those deficiencies are also why better windows offer big potential benefits as a pragmatic climate solution. A report released by the Department of Energy last year found high-performance windows alone could cut carbon emissions 2% by 2050 and be “instrumental” in helping meet President Biden’s climate goals.

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