Earth

Earth

Ozone Depletion and Recovery

Answers to questions about ozone depletion and the recovery of the ozone hole are now easy to find by researchers, as well as the general public, through a new online index developed by NOAA’s Earth System Research Laboratory. The site uses simple graphs and charts to track progress in reducing the threat to Earth’s ozone […]

Earth

Stroke of Good Fortune: A wealth of data from petrified lightning

The lumps of glass created when lightning strikes sandy ground can preserve information about ancient climate.

Earth

Electronics Recycling

What do you do with your used, broken, or obsolete electronic devices? Where can you take your electronics, and what should you look for to protect both your identity and the environment? You can find the answers at the Electronics Industry Alliance’s recycling Web site, which provides an online guide to electronics recyclers and disposal […]

Earth

Why So Dry? Ocean temperatures alone don’t explain droughts

Evidence from ancient dunes points to three periods of prolonged drought in the U.S. Great Plains, but finding their causes may be more complex than previously supposed.

Earth

From Bad to Worse: Earth’s warming to accelerate

Global warming is real and will continue, and there's strong evidence that people are to blame, an international panel of scientists has concluded.

Earth

Corn, a new sensor of carbon dioxide

Scientists have developed a way to use corn plants to monitor and map human-generated emissions of carbon dioxide.

Agriculture

Ethanol Juggernaut Diverts Corn from Food to Fuel

Corn feeds the production of meat and dairy goods in the United States, so those products are likely to increase in price as ethanol fuel demands more of the country's corn supply.

Earth

Disaster’s Consequences: Hurricane’s legacy includes arsenic

Construction debris strewn across the Gulf Coast by Hurricane Katrina contains a disturbing amount of arsenic that could contaminate groundwater if not properly managed.

Earth

Gas tanks could guzzle half of U.S. corn yields

Strong expansion of the U.S. corn-to-ethanol industry, now under way, stands poised to divert much of the grain from food uses to transportation fuel.

Earth

Sudden Chill

Today's combination of nuclear proliferation, political instability, and urban demographics increases the likelihood that humankind could suffer a devastating nuclear winter.

Earth

Heating releases cookware chemicals

Nonstick coatings on fry pans and microwave-popcorn bags can, when heated, release traces of potentially toxic perfluorinated chemicals.

Earth

Aquatic Non-Scents

Many common pollutants appear to be jeopardizing the survival of fish and other aquatic species by blunting their sense of smell.