Search Results for: Forests
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5,510 results for: Forests
- Paleontology
Ancient wood points to arctic greenhouse
Chemical analyses of wood that grew in an ancient arctic forest suggest that the air there once was about twice as humid as it is now.
By Sid Perkins - Health & Medicine
Two markers may predict heart risk
Two proteins that play a role in inflammation may serve as indicators of a person's risk of heart disease and stroke.
By Nathan Seppa - Ecosystems
Risky High Life: Mountain creatures prove extra-vulnerable
Some of the species hardest hit by climate change will be those living in particular mountain highlands.
By Susan Milius - Materials Science
Metal Makeover
Metallic glasses with extraordinary strength and corrosion resistance have been known for decades, but only recently have researchers been able to make such alloys on a large scale from inexpensive iron.
By Peter Weiss - Astronomy
Stellar Tantrums: Tracking the flaring cycles of other stars
Astronomers are closely tracking the ebb and flow of magnetic activity and powerful flares on stars other than the sun.
- Health & Medicine
A Virus Crosses Over to Wild-Animal Hunters
A potentially dangerous virus is moving from nonhuman primates to Africans who hunt and eat wild animals, a new study suggests.
- Animals
Thoroughly Modern Migrants
Butterflies and moths are causing scientists to devise a broader definition of migration and this has raised some old questions in new ways.
By Susan Milius -
They’re Sequencing a What?
Announcements of new targets for genome sequencing are bringing celebrity to lesser-known twigs on the tree of life.
By Susan Milius - Earth
Marsh Farming for Profit and the Common Good
A move is now afoot to get farmers to embrace wetlands as part of their business.
By Janet Raloff -
19261
This article raised so many questions. Do children who play in the dirt get their increased immune resistance from phages in the dirt? Is there a phage connection in the AIDS story? Does the risk of dying of heart attacks have a phage connection? If so, is group A Streptococcus involved? Do we need a […]
By Science News - Earth
Clearing the Air: Ozone-killing bromine is on the decline
Chemical analyses of Earth's lower atmosphere show that the overall concentration of bromine, a component of some potent ozone-destroying chemicals, has dropped by 5 percent since peaking in 1998.
By Sid Perkins - Earth
Satellites show Earth is greener
Daily observations from space for nearly 2 decades indicate that our planet is getting greener.
By Sid Perkins