White Roofs
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From: U.S. Department of Energy
Added: 17 years ago · 1:48 · 480p
Secretary Steven Chu discusses the benefits of switching to white roofs and light colored pavements.
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Views: 26,453
From: U.S. Department of Energy
Added: 17 years ago · 1:48 · 480p
Secretary Steven Chu discusses the benefits of switching to white roofs and light colored pavements.
No comments yet.