When looking at a picture of the sun, how could you tell whether or not it's rising or setting?
Interested in a stock tip? Invest in companies that make sunscreen. Why? Because atmospheric aerosol levels are decreasing.
We’ll give you three things that are related in some way, and it’s your job to come up with how they are related. Ready? The three things are: poisoned fish, industrial pollution, and a contaminated lake. How do these puzzle pieces fit together? Learn more on this Moment of Science.
As vegetables go, soybeans aren't very exciting. But they play a key role in the development of an alternative fuel called biodiesel.
Think you're safe eating organic? Learn about persistent organic pollutants on this Moment of Science.
Chicago, the windy city--this wind might bring some special problems to people with asthma. "Chicago and Asthma", on this Moment of Science.
Did you know that your blood is filled with multiple types of toxins? Learn more on this Moment of Science.
Now, at sunset, the lowest mile or so of the atmosphere is filled with things like vehicle exhaust, dust, smoke, and water vapor, and all these pollutants scatter light.