The rooftop of Robert Green’s home bears two unmistakable marks that it is part of the effort to rebuild New Orleans with a new resilience.

The San Andreas fault has rumbled much more frequently over the last 700 years than commonly believed, and the next major earthquake could happen soon, researchers have found.

Humans may have naturally occurring nanotechnology to thank for partially cleaning up the oil spill from BP's Deepwater Horizon rig.

A special recovery commission announced more than $1.6 billion in projects to rebuild earthquake-ravaged Haiti on Tuesday, including a $200 million plan to create 50,000 new jobs in agriculture.