Congress is hardly the right place for scientific debates to take place. Politicians are rarely scientists and have clear conflicts of interest when oil companies and other powerful lobbies provide millions in donations and other assistance and 'guidance'. Yet, even so, it seems hardly controversial to suggest that climate change is real.
Cue the US Senate and Resolution 524. Sen. Amy Klobuchar and 21 cosponsors brought forth the resolution which is described as "a resolution expressing the sense of the Senate regarding global climate change." Although the text of the resolution is not currently available, the "sense" was a simple acceptance of the reality of climate change.
Cue Oklahoma Senator James Inhofe who blocked the bill. From ThinkProgress.org:
Inhofe said he objected to the resolution because the earth had experienced “no warming for the last 15 years;” and because 9,000 scientists had signed a petition expressing doubt that greenhouse gases cause global warming.
Despite the blockage, Sen. Sheldon Whitehouse took issue with Inhofe's claims and spent about seven minutes spelling out the overwhelming consensus on the issue.