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.

Bill Clinton, Mahesh Ramanujam, and Rick Fedrizzi addressed attendees at the international conference and expo.

The new awards program, named for biophilia champion Stephen Kellert, recognizes projects that successfully integrate nature and design.

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

“Designing sustainably and designing resiliently is not just more homework for architects and engineers,” said Bjarke Ingels at the closing plenary of Greenbuild 2016 Friday afternoon.

The U.S. Green Building Council (USGBC) and the Green Business Certification Inc. (GBCI) has announced a new platform, called arc, intended to measure building performance and track incremental improvements as projects move toward LEED certification.

Echoing the pro-business message USGBC CEO Rick Fedrizzi touted at the Greenbuild 2015 opening plenary, the closing session featured four executives whose industry-leading companies have made sustainability a core part of their operations.

That the Greenbuild 2015 celebration party was held at Washington, D.C.’s Newseum — a 2008 building by Polshek Partnership Architects (now Ennead) that sits across the street from the city’s monumental core — shouldn’t have been much of a surprise.

Although Greenbuild 2015’s kickoff event was politically minded, the tone was anything but rancorous.