The astrophysicist and author’s talk was both humorous and sober, touching on topics as diverse as the Three Little Pigs, the World Trade Center’s Twin Towers, and the earth as seen from space.

The firm and its partners aim to make the revamped Precautionary List more widely accessible.

On an island in New York, Cornell Tech opens a high-tech campus that marries education and entrepreneurship.

The creator of the Rigorous Living Building Challenge designs his own super-sustainable dwelling.

A 26-story apartment building on the Cornell Tech campus achieves Passive House certification, making it the tallest and largest structure with this designation anywhere in the world.

The latest certification tools for sustainability in offices and other buildings put the focus on occupants’ health.

Five years opening in Rotterdam, the retrospective returns to the architect’s hometown.

The latest LEDs, coupled with sophisticated sensors and wireless technologies, are changing the role of lighting in the built environment.

A German tech entrepreneur and investor developed this innovative 20-unit building with wireless connectivity throughout.

Dynamic lighting enlivens an urban space that might otherwise feel deserted or inhospitable.