During his annual Clean Energy Summit in Las Vegas August 7, Senate Majority Leader Harry Reid (D-NV) argued that there is overwhelming evidence linking rising temperatures to human activities such as fossil fuel combustion. Senator Reid said that it is time for climate science skeptics to stop denying that man-made climate change exists and that it is harmful. House Natural Resources Committee Ranking Member Ed Markey (D-MA) added that recent temperature data illustrate the need for Congress to address climate change by adopting renewable energy legislation; he specifically cited the soon to expire wind Production Tax Credit.