• journal_title：The Leading Edge
• Contributor：Ali Tura ; James Schuelke ; Juan Soldo
• Publisher：Society of Exploration Geophysicists
• Date：2009-
• Format：text/html
• Language：en
• Identifier：10.1190/1.3167780
• journal_abbrev：The Leading Edge
• issn：1070-485X
• volume：28
• issue：7
• firstpage：791
• section：monitoring

Have you heard the news? On 17 April 2009, the U.S. Environmental Protection Agency (EPA) formally declared carbon dioxide (CO₂) and five other heat-trapping gases as pollutants that endanger public health and welfare. This important milestone sets in motion a process that will lead to the regulation of the gases for the first time in the U.S. As a result, we can expect that CO₂ capture and storage in the subsurface and monitoring are going to be of major importance in the future. Our industry has already made significant progress with CO₂ monitoring, and in this issue of TLE, we have three technical papers that give a good overview of ongoing work.