Environment

Firefighters say they have battled the state’s most destructive fire to a draw, despite strong winds and dry ground conditions. But with the fire blazing over 25 square miles now, people continue to leave their homes.

The International Energy Agency is warning that unless nations take urgent action to reduce carbon dioxide levels, average temperatures on the earth could rise by more than nine degrees Fahrenheit.

Swiss pilot Bertrand Piccard describes what it’s like to travel noiselessly over the country in the world’s biggest, lightest solar-powered plane, the Solar Impulse.

Bryant Austin has come up with a way to create incredible life-size photographs of whales. He spends hours floating motionless without breathing gear until the whales approach him.

After a high-profile storm chaser, his son and his colleague were killed in the tornadoes that tore through Oklahoma Friday night, we look at the risks and rewards of storm chasing.

Darius Joseph, 15, left New Orleans after Katrina destroyed his home. He’s now homeless again after the tornado in Oklahoma, but he’s helping his adopted family recover.

What if you could replace styrofoam with something that biodegrades and doesn’t contain petroleum? That’s what one start-up is trying to do — with mushrooms.

The Oklahoma medical examiner’s office says two infants are among 24 people killed by the tornado that ripped across the Oklahoma City area this week. It has positively identified all but one of the victims.

Are home-based shelters really enough to hold back an F5 category tornado, which can have winds upwards of 300 miles per hour? And what about people who don’t have home-based shelters?

The state medical examiner’s office has revised the death toll from a tornado in an Oklahoma City suburb to 24 people, including nine children. Those numbers are expected to climb.