5,525 results
5,525 results for: Forests
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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 […]
- 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.
- Earth
Satellites show Earth is greener
Daily observations from space for nearly 2 decades indicate that our planet is getting greener.
- Earth
Mapping carbon dioxide from space
An orbiting observatory in space will sense atmospheric carbon dioxide levels around the globe, creating a detailed map of the greenhouse gas' sources and sinks.
- Math
Pinpointing Killer Asteroids
Two award-winning high school students' projects focused on new methods for pinpointing asteroids locations.
- Earth
Fallen Trees? Scotch pines emit nitrogen oxides into the air
Northern pine forests may exude nitrogen oxides—a contributor to smog and acid rain—in quantities that rival those produced by industry and traffic worldwide.
- Humans
From the September 6, 1930, issue
alt=”Click to view larger image”> LIONS IN ALASKA Alaska, with its vast herds of caribou, its foxes and beaver, its mountain sheep and goats, and its great bears, black, brown, grizzly, and white, is one of the world’s game paradises; but 100,000 years ago, long before the slow-witted men who inhabited Europe thought to follow […]
- Anthropology
Monkey Business
They're pugnacious and clever, and they have complex social lives—but do capuchin monkeys actually exhibit cultural behaviors?
- Earth
Indonesian reefs fell prey to fires
The fires that swept through Indonesian rain forests late in 1997 apparently laid waste to some marine ecosystems, as well.
- Paleontology
Northern Extinction: Alaskan horses shrank, then disappeared
Horses that lived in Alaska shrank dramatically in body size before they went extinct at the end of the last ice age.
- Humans
Science News of the Year 2004
A review of important scientific achievements reported in Science News during the year 2004.
- Animals
Where’d I Put That?
Birds that hide and recover thousands of separate caches of seeds have become a model for investigating how animals' minds work.
