Yeah, but that was before he became, you know, perfect

In May 1998, at the urging of the state's coal industry, the Illinois Legislature passed a bill condemning the Kyoto global warming treaty and forbidding state efforts to regulate greenhouse gases.

Barack Obama voted "aye."

The presumptive Democratic presidential nominee now calls climate change "one of the greatest moral challenges of our generation," and proposes cutting carbon emissions 80% by 2050. But as a state senator, from 1997 to 2004, he usually supported bills sought by coal interests, according to legislative records and interviews.

[From Green Change : Obama embraced coal industry, condemned Kyoto treaty]