The Republican Party rejects cap-and-trade policy to limit carbon emissions. In the 2000s, Senator John McCain proposed bills (such as the McCain-Lieberman Climate Stewardship Act) that would have regulated carbon emissions, but his position on climate change was unusual among high-ranking party members. Some Republican candidates have supported the development of alternative fuels in order to achieve energy independence for the United States. Some Republicans support increased oil drilling in protected areas such as the Arctic National Wildlife Refuge, a position that has drawn criticism from activists.