from: http://www.google.com/hostednews/ap/article/ALeqM5jRxEXI1Z16hhdOZ4g18ZogzD5CXgD9AQJKAO0 :
This weekend the airport expects to nearly finish the first runway in the nation repaved with an environmentally friendly material called warm-mix asphalt.
The asphalt is heated to a lower temperature than normal, burning less fuel and emitting less carbon.
Airport operator Massport says on this project that means a cut of 4,000 tons of carbon dioxide and 400,000 gallons of diesel fuel.
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