Rat Remains Reveal Landscape Changes Wrought by Human Settlement of Polynesia
Rat Remains Reveal Landscape Changes Wrought by Human Settlement of Polynesia
Isotope changes in the bones demonstrate a similar pattern across far-flung islands.
Rat Remains Reveal Landscape Changes Wrought by Human Settlement of Polynesia
Rat Remains Reveal Landscape Changes Wrought by Human Settlement of Polynesia

Isotope changes in the bones demonstrate a similar pattern across far-flung islands.

Isotope changes in the bones demonstrate a similar pattern across far-flung islands.

nitrogen
Image of the Day: Slimy Business
Image of the Day: Slimy Business
Sukanya Charuchandra | Aug 13, 2018
A new study reports finding corn species in Mexico that can trap nitrogen.
Rat Infestation Takes a Toll on Nearby Coral Reefs
Rat Infestation Takes a Toll on Nearby Coral Reefs
Shawna Williams | Jul 12, 2018
A study shows that by killing off seabirds on islands, rodents slash the flow of nutrients into the ocean.
Even in the Bronze Age, Humans Altered Soil Chemistry
Even in the Bronze Age, Humans Altered Soil Chemistry
Kerry Grens | Jun 13, 2018
Ancient bones from Ireland reveal that farming has changed nitrogen composition in land for the last 3,000 years.
Adapting to Elevated CO<sub>2</sub>
Adapting to Elevated CO2
Rina Shaikh-Lesko | Sep 1, 2015
High carbon dioxide levels can irreversibly rev up a cyanobacterium’s ability to fix nitrogen over the long term, a study finds.
Nitrogen-Fixing Bacterium Could Cut Biofuel Costs
Nitrogen-Fixing Bacterium Could Cut Biofuel Costs
Jenny Rood | Feb 2, 2015
Ethanol-producing Zymomonas mobilis can live on nitrogen gas, potentially cutting costs and environmental waste in biofuel production.
Light Lowers Blood Pressure
Light Lowers Blood Pressure
Tracy Vence | Jan 20, 2014
UVA exposure reduces human blood pressure by releasing nitric oxide metabolites from storage in the skin.
EPA to Address Nitrogen Pollution
Cristina Luiggi | Aug 23, 2011
The federal agency should reduce harmful nitrogen emissions by 25 percent in the next two decades, a new report says.