The red-level air quality index (AQI) category—covering values from 151 to 200—means the air is unhealthy for everyone, not ...

USDA growing zones are important for figuring out what to plant and when in your area. However, with recent changes, what you can plant may have changed, too.

All in all, these records show that Earth's global average temperature has increased by about 1.8 F (1 C) since the ...

Cities in California, Texas and Arizona are expecting air quality to become unhealthy for sensitive groups on Thursday.

Youngsters are more stressed than ever. Parents can help children handle the overwhelming fears they may have about the world. The first step is to get a grip on your own worries, say psychologists.