Earth
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Earth
Blood points to pollution’s heart risks
As airborne concentrations of fine dust particles climb, so do three blood factors that increase an individual's heart attack risk.
By Janet Raloff -
Earth
Ozone flares with fireworks festivities
Holiday fireworks and sparklers trigger ozone-generating chemical reactions in the lower atmosphere.
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Earth
Alaska’s coastal permafrost is eroding
Aerial photographs taken over the past 50 years show that Alaska's coastlines of permafrost aren't that permanent after all.
By Sid Perkins -
Earth
More acid rain in East Asia’s future
Large increases in Asian industrial emissions of nitrogen oxides in the next 30 years could lead to a tripling of the acid rain there due to those pollutants.
By Sid Perkins -
Earth
Midlatitude bogs store carbon best
Sediments in lakes and bogs along the eastern coast of the United States show that midlatitude bodies of water have sequestered higher amounts of carbon than others since the last ice age.
By Sid Perkins -
Earth
Seismic simulations help track tanks
New computer models developed to analyze how seismic vibrations travel through uneven terrain can also be used to identify and track heavy vehicles such as tanks and trains.
By Sid Perkins -
Earth
Large earthquake would ravage Oregon
A magnitude 8.5 earthquake off the coast of Oregon would devastate portions of the state, kill thousands of residents, and wrack the economy there for more than a decade.
By Sid Perkins -
Earth
Memory problems linked to PCBs in fish
Adult exposures to polychlorinated biphenyls, from eating tainted fish, correlate with lower scores on learning and memorization tasks.
By Janet Raloff -
Earth
New test traces underground forest carbon
An unusual method of studying soil respiration by girdling trees may clear up several vital mysteries in the way carbon cycles through forests.
By Susan Milius -
Earth
Global Warming Debate Gets Hotter
President Bush gets the global warming report he commissioned just days before he meets with European leaders.
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Earth
Geologists take magnetic view through ice
A new map of the magnetic anomalies in Antarctica and the seafloor surrounding the continent is giving researchers a fresh tool to use in analyzing geologic features that lie hidden beneath thousands of feet of ice or storm-tossed seas.
By Sid Perkins -
Earth
Allergic to computing?
Over the years, many studies have linked skin rashes in some people to working long hours at personal computers. A Swedish study now finds a possible explanation: Certain computer monitors emit a chemical that can cause allergic reactions. Three years ago, while analyzing pollution in samples of outdoor air, Conny Östman and his colleagues at […]
By Janet Raloff