See: New York Times. Conoco, BP, Caterpillar Leave Climate Coalition. Feb. 16, 2010.

ConocoPhillips, Caterpillar Inc. and BP America have left the U.S. Climate Action Partnership, a coalition of more than two-dozen companies and environmental groups lobbying Congress to pass greenhouse gas emissions cap-and-trade legislation.

From Conoco Phillips Web Page: Remediation

We give serious attention to our duty to restore properties impacted by our operations. Our responsibility for remediation can arise from prior contamination on properties we subsequently acquired, contamination of properties we currently own, or contamination of previously owned properties for which we retained individual or joint responsibility for cleanup.

We completed remediation on more than 300 sites in 2008, and currently are restoring more than 3,600 properties in various locations around the world.