It will be impossible to reach U.N. temperature targets without reducing our intake of certain foods, researchers say.
International boundaries look a lot different when you judge a country by its greenhouse-gas emissions.
How do you reduce the greenhouse gas emissions of skyscrapers? For starters, make a chart.
Studying the emissions of megacities like Los Angeles promises to be the next big thing in combating global warming.
A new modeling system called "Hestia" traces greenhouse gases to individual urban buildings and roads.
This proposed Chicago building doesn't look like much, but it could clean up the air around the city's expressway.
Lawns can play a key role in absorbing carbon dioxide emissions.