Siegfried Fred Singer was an Austrian-born American physicist and emeritus professor of environmental science at the University of Virginia, trained as an atmospheric physicist. He was known for rejecting the scientific consensus on several issues, including climate change, the connection between UV-B exposure and melanoma rates, stratospheric ozone loss being caused by chlorofluoro compounds, often used as refrigerants, and the health risks of passive smoking.
The global warming controversy concerns the public debate over whether global warming is occurring, how much has occurred in modern times, what has caused it, what its effects will be, whether any action can or should be taken to curb it, and if so what that action should be. In the scientific literature, there is a very strong consensus that global surface temperatures have increased in recent decades and that the trend is caused by human-induced emissions of greenhouse gases. No scientific body of national or international standing disagrees with this view, though a few organizations with members in extractive industries hold non-committal positions, and some have tried to persuade the public that climate change is not happening, or if the climate is changing it is not because of human influence, attempting to sow doubt in the scientific consensus.
The Leipzig Declaration on Global Climate Change is a statement made in 1995, seeking to refute the fact that there is a scientific consensus on the global warming issue. It was issued in an updated form in 1997 and revised again in 2005, claiming to have been signed by 80 scientists and 25 television news meteorologists while the posting of 33 additional signatories was pending verification that those 33 additional scientists still agreed with the statement. All versions of the declaration, which asserts that there is no scientific consensus about the importance of global warming and opposes the recommendations of the Kyoto Protocol, were penned by Fred Singer's Science and Environmental Policy Project (SEPP).
The Heidelberg Appeal, authored by Michel Salomon, was an appeal directed against the findings of the Intergovernmental Panel on Climate Change. The Heidelberg Appeal's goal was similar to the later published Leipzig Declaration. Before the publication, Fred Singer, who has initiated several petitions like the Heidelberg Appeal, and Michel Salomon, had organized a conference in Heidelberg, which led to that document. It was published on the last day of the 1992 Rio Summit, and warned against basing environmental policies on what the authors described as "pseudoscientific arguments or false and nonrelevant data." It was initiated by the tobacco and asbestos industries, to support the climate-denying Global Climate Coalition. According to SourceWatch the appeal was "a scam perpetrated by the asbestos and tobacco industries in support of the Global Climate Coalition". Both industries had no direct reason to deny global warming, but rather wanted to promote their "sound science" agenda, which basically states that industry-funded science is good science and science contradicting those science is bad science or "junk science".
Patrick J. Michaels was an American agricultural climatologist. Michaels was a senior fellow in environmental studies at the Cato Institute until 2019. Until 2007, he was research professor of environmental sciences at the University of Virginia, where he had worked from 1980.
There is 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.
Sallie Louise Baliunas is a retired astrophysicist. She formerly worked at the Center for Astrophysics | Harvard & Smithsonian and was the Deputy Director of the Mount Wilson Observatory from 1991 to 2003.
The Global Warming Petition Project, also known as the Oregon Petition, is a group which urges the United States government to reject the Kyoto Protocol of 1997 and similar policies. Their petition challenges the scientific consensus on climate change. Though the group claims more than thirty-thousand signatories across various scientific fields, the authenticity and methods of the petitioners as well as the signatories' credentials have been questioned, and the project has been characterized as a disinformation campaign engaged in climate change denial.
Craig D. Idso is the founder, president and current chairman of the board of the Center for the Study of Carbon Dioxide and Global Change, a group which receives funding from ExxonMobil and Peabody Energy and which promotes climate change denial. He is the brother of Keith E. Idso and son of Sherwood B. Idso.
The George C. Marshall Institute (GMI) was a nonprofit conservative think tank in the United States. It was established in 1984 with a focus on science and public policy issues and had an initial focus in defense policy. Starting in the late 1980s, the institute advocated for views in line with environmental skepticism, most notably climate change denial. The think tank received extensive financial support from the fossil fuel industry.
Piers Akerman is an Australian columnist and conservative commentator for the Sydney newspaper The Daily Telegraph.
The Heartland Institute is an American conservative and libertarian public policy think tank known for its rejection of both the scientific consensus on climate change and the negative health impacts of smoking.
The Climate Change Science Program (CCSP) was the program responsible for coordinating and integrating research on global warming by U.S. government agencies from February 2002 to June 2009. Toward the end of that period, CCSP issued 21 separate climate assessment reports that addressed climate observations, changes in the atmosphere, expected climate change, impacts and adaptation, and risk management issues. Shortly after President Obama took office, the program's name was changed to U.S. Global Change Research Program (USGCRP) which was also the program's name before 2002. Nevertheless, the Obama Administration generally embraced the CCSP products as sound science providing a basis for climate policy. Because those reports were mostly issued after the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), and in some cases focused specifically on the United States, they were generally viewed within the United States as having an importance and scientific credibility comparable to the IPCC assessments for the first few years of the Obama Administration.
Robert Merlin Carter was an English palaeontologist, stratigrapher and marine geologist. He was professor and head of the School of Earth Sciences at James Cook University in Australia from 1981 to 1998, and was prominent in promoting climate change denial.
Willard Anthony Watts is an American blogger who runs Watts Up With That?, a popular climate change denial blog that opposes the scientific consensus on climate change. A former television meteorologist and current radio meteorologist, he is also founder of the Surface Stations project, a volunteer initiative to document the condition of U.S. weather stations. The Heartland Institute helped fund some of Watts' projects, including publishing a report on the Surface Stations project, and has invited him to be a paid speaker at its International Conference on Climate Change from 2008 to 2014.
Dennis Teel Avery was the director of the Center for Global Food Issues at the Hudson Institute, where he edited Global Food Quarterly. He died on June 20, 2020, at the age of 83.
The International Conference on Climate Change (ICCC) is a conference series organized and sponsored by The Heartland Institute which aims to bring together those who "dispute that the science is settled on the causes, consequences, and policy implications of climate change." The first conference took place in 2008.
Media coverage of climate change has had effects on public opinion on climate change, as it conveys the scientific consensus on climate change that the global temperature has increased in recent decades and that the trend is caused by human-induced emissions of greenhouse gases.
The Nongovernmental International Panel on Climate Change (NIPCC) is a climate change denial advocacy organisation set up by S. Fred Singer's Science & Environmental Policy Project, and later supported by the Heartland Institute lobbying group, in opposition to the assessment reports of the Intergovernmental Panel on Climate Change (IPCC) on the issue of global warming.
Ozone depletion and climate change, or Ozone hole global warming in more popular terms, are environmental challenges whose connections have been explored and which have been compared and contrasted, for example in terms of global regulation, in various studies and books.
