Now you really can wear your heart on your sleeve with this mood-sweater.
A newly funded U.S. project will use tethered kites underwater to tap ocean currents and tidal flows.
New underwater views of the Great Barrier Reef debut as activists fight to save it from a neighboring mega-mine.
A Canadian adventurer is selling the custom-made boat he hoped would help him pedal across 3,000 miles of ocean.
Allergy alert: Earth's climate responds more now to CO2 fluctuations than it did during the past 12 million years.