Certifiers of responsible practices aim to curb illegal logging. But enforcement hikes prices for consumers.
Ecologically friendly designs are shedding an ugly past for a sleeker, more integrated future.
A filling station from the future lands in Los Angeles.
New rating systems help students choose environmentally friendly colleges.
Kids at Sidwell Friends School in Washington, D.C., love their new 'green' campus.
The city may pass the most far-reaching ordinance in the US in March. It would require most new commercial and residential high-rises to meet Leadership in Energy and Environmental Design (LEED) standards.