Query: I would not agree that carbon dioxide is a primary contributor to the global warming that we see.

Relevant passages:
Scientific consensus on climate change <=SEP=> There is currently a strong scientific consensus that the Earth is warming and that this warming is mainly caused by human activities. This consensus is supported by various studies of scientists' opinions and by position statements of scientific organizations, many of which explicitly agree with the Intergovernmental Panel on Climate Change (IPCC) synthesis reports.  Nearly all actively publishing climate scientists (97–98%) support the consensus on anthropogenic climate change, and the remaining 2% of contrarian studies either cannot be replicated or contain errors.

Greenhouse gas <=SEP=> A greenhouse gas ( abbrev . GHG ) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range . This process is the fundamental cause of the greenhouse effect . The primary greenhouse gases in Earth 's atmosphere are water vapor , carbon dioxide , methane , nitrous oxide , and ozone . Without greenhouse gases , the average temperature of Earth 's surface would be about -18 ° C , rather than the present average of 15 ° C . In the Solar System , the atmospheres of Venus , Mars and Titan also contain gases that cause a greenhouse effect .   Human activities since the beginning of the Industrial Revolution ( taken as the year 1750 ) have produced a 40 % increase in the atmospheric concentration of carbon dioxide , from 280 ppm in 1750 to 406 ppm in early 2017 . This increase has occurred despite the uptake of a large portion of the emissions by various natural `` sinks '' involved in the carbon cycle . Anthropogenic carbon dioxide emissions ( i.e. , emissions produced by human activities ) come from combustion of fossil fuels , principally coal , oil , and natural gas , along with deforestation , soil erosion and animal agriculture .   It has been estimated that if greenhouse gas emissions continue at the present rate , Earth 's surface temperature could exceed historical values as early as 2047 , with potentially harmful effects on ecosystems , biodiversity and the livelihoods of people worldwide . Recent estimates suggest that on the current emissions trajectory the Earth could pass a threshold of 2 ° C global warming , which the United Nations ' IPCC designated as the upper limit to avoid `` dangerous '' global warming , by 2036 .

Scott Pruitt <=SEP=> Edward Scott Pruitt ( born May 9 , 1968 ) is an American lawyer and Republican politician from the state of Oklahoma who is currently the 14th Administrator of the Environmental Protection Agency . Nominated by President Donald Trump in December 2016 , Pruitt was confirmed by the Senate to lead the EPA on February 17 , 2017 .   Pruitt represented Tulsa and Wagoner Counties in the Oklahoma Senate from 1998 until 2006 . In 2006 , Pruitt narrowly lost to Oklahoma Speaker of the House Todd Hiett in a bid for the Republican nomination for Lieutenant Governor of Oklahoma . In 2010 , Pruitt was elected Attorney General of Oklahoma . In that role , he was viewed as a proponent of federalism , supporting religious freedom laws and opposing abortion rights , same-sex marriage , the Affordable Care Act , and environmental regulations as a self-described `` leading advocate against the EPA 's activist agenda '' . He fought the agency 's efforts on climate and clear air in several lawsuits , often closely coordinating with the fossil fuel industry , which supported him with almost $ 300,000 in campaign contributions . In 2012 , Pruitt was elected as chairman of the Republican Attorneys General Association , and re-elected for a second term in February 2013 .   Pruitt rejects the scientific consensus that human activities are a primary contributor to climate change . He specifically rejects the stance of the scientific community , including US agencies NASA and NOAA , that carbon dioxide is the primary contributor .