==Funding==
In 2008, the Center reported on its 990 form to the IRS that it received more than $1 million in grants and contributions, a large increase than the nearly $700,000 it reported the year before. ===Policy: funding, funders kept confidential===On it's website [[Sherwood B. Idso]] writes that "our typical response is that we never discuss our funding. Why? Because we believe that ideas about the way the world of nature operates should stand or fall on their own merits, irrespective of the source of support for the person or organization that produces them ... It is self-evident, for example, that one need not know from whence a person's or organization's funding comes in order to evaluate the reasonableness of what they say, if - and this is a very important qualification - one carefully studies the writings of people on both sides of the issue."<ref name="funding">Sherwood B. Idso, [http://www.co2science.org/about/position/funding.php "What Motivates the Center for the Study of Carbon Dioxide and Global Change?"], Center for the Study of Carbon Dioxide and Global Change, accessed April 2008.</ref>
The Center states on its website that it "accepts corporate, foundation and individual donations" and that "all donations are kept confidential".<ref> Center for the Study of Carbon Dioxide and Global Change, "[http://www.co2science.org/about/donate.php "Contribute To The Center"], accessed April 2008. </ref>
===Funding from ExxonMobil===
Sherwood Idso confirmed that Exxon "made some donations to us a few times in the past" but attributed this to the fact that "they probably liked what we typically had to say about the issue. But what we had to say then, and what we have to say now, came not, and comes not, from them or any other organization or person."<ref name="funding"/>
[[ExxonMobil's ]] 2001 list of groups it funded listed a $10,000 contribution to the CSCDGC in 2001. Center for Science in the Public Interest, "[http://www.cspinet.org/integrity/nonprofits/center_for_the_study_of_carbon_dioxide_and_global_change.html Center for the study of carbon dioxide and global change]", ''Integrity in Science'', undated, accessed March 2004. <ref>Exxon, [http://web.archive.org/web/20011031010631/www.exxonmobil.com/contributions/public_info.html Public Information and Policy Research]", archived file from October 2001, accessed June 2007. </ref>
StopExxon.org reports CSCDGC has received $90,000 from ExxonMobil between 1998 and 2005 comprising: <ref>"[http://stopexxon.unfortu.net/html/orgfactsheet.php?id=24 FACTSHEET: Center for the Study of Carbon Dioxide and Global Change, Center for the Study of CO2 and Climate Change]", Exxonsecrets.org, accessed June 2007.</ref>