Atmosphere and Oceans
Composition of Earth's Atmosphere
Further Exploration
National Air Quality Forecast System
NOAA - provides the US with ozone, particulate matter, and other pollutant forecasts.
EO Library - Information on tropospheric ozone, including pollution control mechanisms.
The Ozone Depletion Phenomenon
National Academy of Sciences - Traces the history of the discovery of ozone, the ozone layer, and the ongoing studies of the ozone hole over Antarctica.
Biography

Classics
Enquiry into gases constituting the atmosphere
John Dalton's 1802 paper
Torricelli's Barometric Experiment
Mus. Sci. History, Florence - A description and illustration of the invention of the barometer.
News & Events
NOAA
Climate effects of volcanic eruptions
Part of the site How Volcanoes Work from Dr. Vic Camp at the Department of Geological Sciences, San Diego University.
Detecting Life on Other Planets
News from around the world of science.
Research
A theory of upper-atmosphere ozone
Sidney Chapman's 1930 paper was the first to describe the ozone layer.
Google - Research database allows searching of the scholarly literature.
Experiment!
NASA - See how temperature and pressure vary with altitude
Next Generation Science Standards (NGSS)
Next Generation Science Standards: For States, By States
National Academies Press: A Framework for K-12 Science Education