1,414 results
1,414 results for: Algae
- Environment
Down with Carbon
Scientists are exploring strategies for capturing carbon dioxide and storing it safely away in order to limit the levels of that greenhouse gas in the atmosphere.
- Earth
Oxygen Rocks: Volcanoes spurred early atmospheric change
Earth owes its oxygen-rich atmosphere to a change in volcanic activity about 2.5 billion years ago.
- Humans
Letters from the March 31, 2007, issue of Science News
On the hoof Do cows and other domestic-herd animals really emit more methane than bison and other wild-herd animals emitted before people came along? Do grass, alfalfa, and other pasture plants remove less carbon dioxide than do forests? There were open grasslands before pastures replaced some forests. I hope the people who are researching these […]
- Earth
Drug Overflow: Pharmaceutical factories foul waters in India
A treatment plant in India that processes waste from drug factories feeds enormous amounts of antibiotics and other drugs into local waterways.
- Ecosystems
Fish as Farmers: Reef residents tend an algal crop
A damselfish cultivates underwater gardens of an algal species that researchers haven't found growing on its own.
- Earth
Hey, What about Us?
The plight of polar bears may get most of the attention as climate change disrupts the Arctic ice, but plenty of other species, from walrus and seals to one-celled specks, are also going to see their world change radically.
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- Humans
What’s Cookin’
Science and cooking have gotten intimate, resulting in a new understanding of how molecules are transformed into food and how food is transformed by the body.
- Chemistry
In a Fix: Agricultural chemicals disturb a natural relationship
Several pesticides can disrupt a partnership that enables certain plants to take up nitrogen by enlisting the help of bacteria.
- Agriculture
Cleaning Up after Livestock
Manure collection system sanitizes cattle wastes and makes hay—literally—while the sun shines.
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Jelly Propulsion
Jellyfish have been swimming the seas for at least 550 million years, and research is now revealing how the challenges of moving in fluid have shaped the creatures' evolution.
- Earth
Invasive, Indeed
Some people may live lightly on the land, but the demands of the world's population as a whole consume nearly a quarter of Earth's total biological productivity.
