Query: Rob Portman voted for the bipartisan bill to affirm climate change is real, humans significantly contribute to it and it needs to be addressed.

Relevant passages:
Climate change (general concept) <=SEP=> Climate variability includes all the variations in the climate that last longer than individual weather events, whereas the term climate change only refers to those variations that persist for a longer period of time, typically decades or more. In the time since the industrial revolution the climate has increasingly been affected by human activities that are causing global warming and climate change.The climate system receives nearly all of its energy from the sun. The climate system also radiates energy to outer space. The balance of incoming and outgoing energy, and the passage of the energy through the climate system, determines Earth\'s energy budget. When the incoming energy is greater than the outgoing energy, earth\'s energy budget is positive and the climate system is warming. If more energy goes out, the energy budget is negative and earth experiences cooling.\nThe energy moving through Earth\'s climate system finds expression in weather, varying on geographic scales and time. Long-term averages and variability of weather in a region constitute the region\'s climate. Such changes can be the result of "internal variability", when natural processes inherent to the various parts of the climate system alter the distribution of energy. Examples include variability in ocean basins such as the Pacific decadal oscillation and Atlantic multidecadal oscillation. Climate variability can also result from external forcing, when events outside of the climate system\'s components nonetheless produce changes within the system. Examples include changes in solar output and volcanism.\nClimate variability has consequences for sea level changes, plant life, and mass extinctions; it also affects human societies.

Rob Portman <=SEP=> Robert Jones Portman ( born December 19 , 1955 ) is an American lawyer and the junior United States Senator from Ohio , in office since 2011 . Previously he served as a congressman , as the 14th United States Trade Representative , and as the 35th Director of the Office of Management and Budget .   Born in Cincinnati , Ohio , Portman graduated from Dartmouth College and the University of Michigan Law School . He worked briefly in the White House during the George H. W. Bush administration before entering the U.S. House of Representatives , representing the eastern half of Greater Cincinnati and neighboring counties along the Ohio River , and serving six consecutive terms . Portman resigned from Congress to serve as U.S. Trade Representative from May 2005 to May 2006 . As Trade Representative , Portman is cited for initiating worldwide trade agreements between other countries and the United States , and pursuing claims against China and the European Union at the World Trade Organization . He later served in the George W. Bush administration from May 2006 to June 2007 as Director of the Office of Management and Budget , where he advocated a balanced budget . Portman is married and has three children .   A center-right member of the Republican Party , Portman was elected U.S. Senator in 2010 . He has been listed as a possible Republican vice presidential candidate in the past two presidential elections . In the Senate , Portman was a member of the Congressional Joint Select Committee on Deficit Reduction . Throughout his time in Congress , the Cabinet , and the Senate , Portman has visited over thirty countries , including Israel , China , and Iraq . In 2013 , Portman became the first incumbent statewide or national-level Republican to publicly support legal recognition of same-sex marriage since Lincoln Chafee in 2004 .