It seems as if Earth's atmosphere is incredibly thin ... With lower air pressure, the temperature drops, so the higher you go in the troposphere, the colder it gets. Phrases such as "taking ...

The amount of water vapor in the atmosphere increases with temperature (Figure 5). So, warming the Earth adds water vapor to the atmosphere, and adding water vapor to the atmosphere magnifies that ...

By the early 1900s, scientists had identified major layers of the atmosphere based on how the temperature changed at different levels above the sea. Thanks to these studies, we now know the five ...

Different model variables such as temperature, the amount of radiation observed at the top-of-atmosphere, ocean heat content, and greenhouse gas concentrations are all open to evaluation.

It is called a greenhouse gas because —like the glass structure of a greenhouse — carbon dioxide molecules trap heat in the atmosphere. Carbon dioxide accounts for two-thirds of the global warming ...

This effect is important: without the CO 2 that naturally exists in the atmosphere, Earth might be too cold to support human life. However, the atmosphere is very sensitive to changing levels of CO 2.