The proposed finding, which now moves to a public comment period, identified six greenhouse gases that pose a potential threat.
The proposed endangerment finding now enters the public comment period, which is the next step in the deliberative process EPA must undertake before issuing final findings.
Before taking any steps to reduce greenhouse gases under the Clean Air Act, EPA would conduct an appropriate process and consider stakeholder input. Notwithstanding this required regulatory process, both President Obama and Administrator Jackson have repeatedly indicated their preference for comprehensive legislation to address this issue and create the framework for a clean energy economy.
http://yosemite.epa.gov/opa/admpress.nsf/0/0EF7DF675805295D8525759B00566924