Spread of 'didymo' algae perplexes California scientists

August 30, 2010 06:33 AM

UPDATED August 30, 2010 08:02 AM

More Videos

  • Trump dismantles Bears Ears National Monument

    President Trump has announced plans to reduce Bears Ears National Monument. President Obama had designated the 1.3 million acres in southern Utah at the request of Native American groups.