In 2008, after a group opposing his candidacy sent out a mailer criticizing Lance's environmental record, Jeff Tittel of the New Jersey Sierra Club defended Lance, saying he had "an excellent record." In 2009, Lance was one of only eight Republicans in the House who voted in favor of the American Clean Energy and Security Act, a bill that included a cap and trade provision to address global warming. However, Tittel has since soured on Lance, suggesting in a 2018 op-ed in the New Jersey Star-Ledger that Lance "used to vote for the environment and now does not."