To understand and protect the home planet: it’s no longer a key NASA mission. What will we lose as NASA turns its eyes toward the moon and Mars?

As kids spend more times indoors, experts wonder what is being lost. Do humans need nature?

Coal ash is a giant garbage problem. Should we recycle more ash into concrete? A new process might save cement, rock, and landfill space.

Global warming is changing the planet: Antarctica is melting, sea level is rising, oceans are turning sour. Killing Amazon forests spreads malaria, reduces rainfall. How sick is our Earth?

Could something as simple, cheap and natural as a forest protect a coastline from a tsunami’s titanic wave? It’s looking that way…

Farms release airborne, drug-resistant bacteria, and indoor air could be making you sick. More news about the particles we breathe every day.

Climate scientist says 2005 may have been warmest year on record, continuing a trend of global warming has started. NASA asks to filter journal articles and other communications.

As the administration allows more snowmobiles to buzz through Yellowstone, scientists cry foul. Are the parks more than playgrounds?m Scientists call for more money for basic research, but the Bush administration favors recreation.

Arctic environment is warming fast, causing harm to wildlife, environment and indigenous people; faster warming predicted in the future. Welcome to the warmer world…

Feeling burned? Farmed salmon have higher levels of a brominated flame retardant than wild salmon.