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Every night, under the cover of darkness, countless small sea creatures swim from the ocean depths to feed near the surface, then descend out of sight again before daybreak.
Published Dec 3, 2019
Greenness is an important indicator of health for forests, grasslands, and farms. The greenness of a landscape, or vegetation index, depends on the number and type of plants, how leafy they are, and how healthy they are.
Mar 2000 — Nov 2019
Rising waters are swallowing up another island in Chesapeake Bay.
Published Nov 26, 2019
About 80 percent of South Korea’s oysters are grown in these waters.
Published Nov 22, 2019
Chlorophyll is used by algae and other phytoplankton--the grass of the sea--to convert sunlight and carbon dioxide into sugars. These maps show chlorophyll concentrations in the ocean, revealing where phytoplankton are thriving.
Jul 2002 — Oct 2019