The goal of this site is to present information and links to information on environmental considerations associated with coalbed natural gas development (CBNG) nationwide. The emphasis will be on water co-produced with CBNG, but other environmental considerations will also be presented. The USGS Energy Resource Team assessment of existing and potential CBNG development in the United States is accessible via this website as well. The website includes a page providing general information regarding CBNG environmental considerations, especially co-produced waters, as well as state-and basin-specific information and links. Content will continue to be added to this website as it becomes available.