With only 7.5% of Earth's surface covered in fertile, agricultural soil, it's critically important to maintain the soil to grow food, filter water, and regulate the climate. Today, Bay Area scientists ...
Until recently, the oldest ice core ever drilled was about 1.2 million years old. The latest breakthrough by U.S. scientists from the COLDEX project pushes that record all the way back to six million ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results