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Tag Archives: energetics

Iron versus climate change

By Roberta Kwok / August 9, 2012

A tiny organism called a diatom can absorb carbon dioxide from the atmosphere and carry the carbon to the bottom of the ocean. Credit: Marina Montresor, SZN / Alfred Wegener Institute.

Metal deposits can promote the growth of ocean algae that gobble greenhouse gas

Posted in Earth | Tagged algae, bacteria/protists/fungi, carbon dioxide, climate change, diatom, Diatoms, energetics, getinvolved, global warming, iron, iron fertilization, nature, oceanography, photosynthesis, silica, southern ocean

Like poison for phosphorus

By Stephen Ornes / December 13, 2010

Scientists report finding bacterium that can live off arsenic

Posted in Chemistry | Tagged Adaptation, arsenic, bacteria, bacterium, Chemosynthesis, energetics, extreme environments, forensic science, microbe, organic chemistry, organic molecules, phosphorus, toxicology, toxicology/drugs

A Change in Leaf Color

By Emily Sohn / September 18, 2006

Leaves go to a lot of trouble to turn red in the fall.

Posted in Plants | Tagged Chloroplasts, ecology, energetics, photosynthesis, pigment

Ancient Heights

By Emily Sohn / December 17, 2004

Leaf fossils can help track the rise and fall of mountain ranges.

Posted in Earth | Tagged energetics, photosynthesis, Stomata