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Carbon dioxide - Wikipedia
Carbon dioxide (chemical formula CO 2) is a colorless gas with a density about 60% higher than that of dry air. Carbon dioxide consists of a carbon atom covalently double bonded to two oxygen atoms.
Overview of Greenhouse Gases | Greenhouse Gas (GHG ...
Carbon dioxide (CO 2) is the primary greenhouse gas emitted through human activities.In 2015, CO 2 accounted for about 82.2% of all U.S. greenhouse gas emissions from human activities.
Home | Scripps CO2 Program
Carbon Dioxide Measurements. This site provides access to products from the Scripps CO 2 Program and serves as a tribute to its founder Charles David Keeling
Climate Change: Vital Signs of the Planet: Carbon Dioxide
Graphs and an animated time series showing atmospheric carbon dioxide levels from the last three glacial cycles to present day.
A weekly review and repository of scientific research findings pertaining to carbon dioxide and global change.
Glossary of Terms: C - Physical Geography
Calcification A dry environment soil-forming process that results in the accumulation of calcium carbonate in surface soil layers.
Page being updated | US EPA
Thank you for your interest in this topic. We are currently updating our website to reflect EPA's priorities under the leadership of President Trump and Administrator Pruitt. If you're looking for an archived version of this page, you can find it on the January 19 snapshot ...
Carbon Dioxide in the Ocean and Atmosphere - sea, depth ...
Balances in Carbon Dioxide Levels Approximately 90 to 100 Pg of carbon moves back and forth between the atmosphere and the oceans, and between the atmosphere and the land biosphere.