Astronauts reveal an alarming greenish hue in Lake Tana: satellite images show algae growth and hidden threats to this ...
Water Selectively Absorbs Light Wavelengths The ocean is blue because water absorbs colors in the red part of the light ...
Saguaro Park in southeastern Arizona, near Tucson, offers a landscape unlike anything you’ll see elsewhere. The park hosts ...
There are over 150 lakes in Texas, but for the cleanest waters, head to these five pristine reservoirs that are generally ...