A federal judge just threw out Arizona lawmakers’ challenge to the huge new national monument that surrounds the Grand Canyon. Now the case is heading to the Ninth Circuit Court ...

Landslide-generated tsunamis pose a serious risk to coastal communities, particularly within narrow fjords where tall cliffs ...

Despite the deep ocean floor coating some 66% of our planet's surface, we haven't explored 99.999% of it, study finds.

The government’s decision to excise 35,301 hectares from the Mau Forest in 2001 has led to prolonged legal battles. In what ...