Water heaters' methane leaks are high, but fixable

Natural gas escapes from water heating systems through leaks and because some is not combusted by the burner. These tiny inefficiencies can add up: The resulting emissions of methane—a powerful greenhouse gas—for water ...

New York unveils plan to cut building CO2 emissions

New York on Thursday revealed an initiative that would mandate thousands of buildings throughout the city become more energy efficient, the latest step in the city's push to reduce its greenhouse gas emissions.

Sponge creates steam using ambient sunlight

How do you boil water? Eschewing the traditional kettle and flame, MIT engineers have invented a bubble-wrapped, sponge-like device that soaks up natural sunlight and heats water to boiling temperatures, generating steam ...

Six-story building put to earthquake test (Update)

Researchers at the University of California, San Diego rocked and rattled a six-story steel frame building on a giant shake table Wednesday to see how the structure would withstand major earthquakes.

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