David Stern and Robert Kaufmann, of the Center for Energy and Environmental Studies at Boston University, provide "the first estimates," by year, of human-made methane emissions from seven sources, including gas flaring, coal mining, and biomass burning. Data are available in ASCII or binary spreadsheet formats, and a graph shows the rise in methane emissions from 1860 to 1994. The site explains...

At this website, the Belgian Institute for Space Aeronomy discusses its contributions "to the knowledge of the atmospherical environment from the Earth to the Sun." Created for all levels of expertise, this Web site is broken down into two main sections: a Public link and a Science link. Through the Science section, researchers can learn about the Institute's abundant projects dealing with the...

This site was prepared by the Carbon Dioxide Information Analysis Center at the Oak Ridge National Labratory and makes available carbon dioxide, hydrographic, and chemical data obtained during the R/V Akademik Ioffe cruise in the South Pacific Ocean in 1992. An overview of the data provides background information, description of the variables and methods, and references. A description of the...

The "Earth Observing System (EOS) Aura is a NASA mission to study the Earth's ozone, air quality, and climate" by researching the composition, chemistry, and dynamics of the Earth's atmosphere. Visitors can learn how Aura is investigating three questions: Is the Earth's ozone layer recovering? Is air quality getting worse? How is Earth's climate changing? Researchers can find extensive details...

This website describes a satellite instrument designed by the Jet Propulsion Lab that will fly aboard NASA's Aura spacecraft in June 2004 and will study Earth's troposphere and ozone. The website provides links to information on the TES status, TES data products, mission details, the science behind TES, and related TES publications. The Gallery section includes animations and image plots of...

PALMS (Particle Analysis by Laser Mass Spectrometry), a laser ion mass spectrometer run by the National Oceanic and Atmospherics Association's (NOAA's) Meteorological Chemistry Group, makes in-situ measurements of the chemical composition of individual aerosol particles. PALMS has a lab version and a flight version, which is carried on the nose of an aircraft. The PALMS Website gives spectral data...