The [[U.S. Chamber of Commerce]] has been a vocal critic of climate change legislation. U.S. Chamber President [[Tom Donohue]] has been on the board of directors at Union Pacific since 1998, and paid annual retainers by Union Pacific amounting to at least $1,134,333 since 1998.<ref name="Chamber"/>
Union Pacific has given $700,000 to the U.S. Chamber since 2004, as reported in the company's 2007, 2008, and 2009 proxy statements, and had has spent over $3 million on lobbying activities in 2009, including efforts to oppose the [[American Clean Energy and Security Act]].<ref name="Chamber"/>
==History==