5,522 results
5,522 results for: Forests
- Earth
Killer Crater: Shuttle-borne radar detects remnant of dino-killing impact
Radar images gathered during a flight of the space shuttle Endeavour 3 years ago show the subtle topography related to the impact of an asteroid or comet that may have wiped out the dinosaurs 65 million years ago.
- 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.
- Chemistry
Catnip repels pest
Known to repel cockroaches and mosquitoes, catnip oil also works against termites.
- Earth
Feel the Heat: Rain forests may slow their growth in warmer world
During a long-term research project in a Central American rain forest, mature trees grew more slowly in warm years than they did in cooler ones.
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19710
I live in Northern California, where forest-biomass power plants are common. One power plant takes the ashes that result and places them where cows forage. I’m wondering to what level of concentration this process will accumulate the cesium in organic dairy products. Jesse NoellEureka, Calif. The amount of radioactive cesium-137 taken up by trees is […]
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19112
Your article brought to mind how this affects me. I’m a firefighter, so prone to sleep deprivation. I have noticed that when sleep patterns are repeatedly interrupted by emergency calls, I tend to be more susceptible to illness. This is anecdotal but seems to hold true for my colleagues and me. Ryan SmithForest Grove, Ore. […]
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When Birds Go to Town
Urban settings offer enterprising critters new opportunities — if they can cope with the challenges
- Life
Helping Bats Hold On
Scientists seek a savior as a deadly fungal pandemic explodes through vulnerable colonies.
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Science From On High
Google Earth gives researchers new access.
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Lopped Off
Removal of top predators trickles through the food web.
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