News tagged with earth atmosphere

Raising giant insects to unravel ancient oxygen

The giant dragonflies of ancient Earth with wingspans of up to 70 centimeters (28 inches) are generally attributed to higher oxygen atmospheric levels in the atmosphere in the past. New experiments in raising modern insects ...

Oct 29, 2010 4.5 / 5 (15) 7 | with audio podcast

Sensitive side

(PhysOrg.com) -- A little extra carbon dioxide in the air may, unfortunately, go further towards warming Earth than previously thought. A team of British and U.S. researchers have uncovered evidence [1] that ...

May 05, 2010 4.1 / 5 (10) 6 | with audio podcast

A Hazy View of Early Earth

Haze in the early Earth atmosphere could have played a crucial role in the origin of life. By forming a protective shield, the haze would have safeguarded organic substances from harmful ultraviolet (UV) radiation. ...

Oct 12, 2009 4.3 / 5 (4) 3

Man-Made Activities Affect Blue Haze (w/ Video)

(PhysOrg.com) -- "Blue haze," a common occurrence that appears over heavily forested areas around the world, is formed by natural emissions of chemicals, but human activities can worsen it to the point of affecting the world's ...

Oct 06, 2009 1.7 / 5 (3) 0