Not only is Earth's surface warming, but the troposphere — the lowest level of the atmosphere, where weather occurs — is heating up too, U.S. and British meteorologists reported on Monday. In a review ...

When you look at photographs of Earth from space, the planet looks like a blue marble, with patterns of clouds lying on the surface of the marble. It seems as if Earth's atmosphere is incredibly thin, ...

JACKSONVILLE, Fla. — How many layers do you think there are in our atmosphere? Five! We have five different layers between us and outer space. From the surface up there is the troposphere, the ...

Scientists confirmed that much of ozone's increase in the upper troposphere is likely due to humans. A team detected a clear signal of human influence on upper tropospheric ozone trends in a 17-year ...