It’s interesting that the consensus studies have themselves turned into a meta-debate – article in SciAm about that. It seems that the denialists who deny the science, when faced with studies showing an overwhelming consensus supporting the science, deny the studies that support the consensus that supports the science! 
As a humble denizen of these forums who reads the scientific journals and has some understanding of climate science, one of my main observations in this regard is that I’ve never actually seen a scientific paper within at least the last ten years and probably much longer that actually challenged the consensus view on AGW in any way that was even remotely credible. A key word here being “credible”, because there is a small set of discreditable names that keep coming up – the same ones again and again – often sneaking their papers into second-rate journals or journals that are peripheral to climate science and which don’t do a good job of vetting. These papers are invariably junk and are quickly discredited on the basis of faulty data and/or faulty methodology, and have occasionally caused embarrassment for the journals that published them when it was discovered just how bad they were. Their authors usually turn out to be the same old crackpots whose background invariably includes some combination of being funded by the fossil fuel industry, being anti-regulation libertarians, and/or not being climate scientists at all but being bloggers or dilettantes pursuing some narrow vested interest.
The reality is that, imperfect though it may be, the Intergovernmental Panel on Climate Change (IPCC) provides the most comprehensive overview of the state of climate science that is available today for policymakers and the general public, and the best way we have of moving forward on public understanding of the science and its implications. The IPCC doesn’t do original research – what it does is vet and review the current state of published knowledge in the field and summarizes the information from a policy-relevant perspective. Its members, collectively, comprise thousands of the most prominent scientists in their respective fields, and their findings are issued in four basic categories: periodic assessment reports on the science of climate change (Working Group 1), on vulnerabilities and adaptation (WG2), and on mitigation (WG3), and in addition, a category of special reports on selected issues, like the Special Report on Extreme [weather] Events (SREX).
Another way of looking at the question, then, is to look at the positions of major scientific bodies with respect to the findings of the IPCC. The statements and reports that have been issued by the US National Academy of Sciences are typical, as are joint statements periodically issued by the national academies of the major nations. The statements can be read at the link; here I will just say that the support of the IPCC position on AGW breaks down as follows:
Concurring with the IPCC:
The national science academies of 34 major nations, including the US National Academy of Sciences, three regional academies, and both the international InterAcademy Council and International Council of Academies of Engineering and Technological Sciences. Among other major scientific bodies supporting the same consensus: the American Association for the Advancement of Science, the Federation of Australian Scientific and Technological Societies, the United States National Research Council, the Royal Society of New Zealand, the Royal Society of the United Kingdom, the European Science Foundation, the American Chemical Society, the American Institute of Physics, the American Physical Society, the European Physical Society, the American Geophysical Union, the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, the European Federation of Geologists, the European Geosciences Union, the Geological Society of America, the Geological Society of London, the International Union of Geodesy and Geophysics, the American Meteorological Society, the Australian Meteorological and Oceanographic Society, the Canadian Foundation for Climate and Atmospheric Sciences, the Canadian Meteorological and Oceanographic Society, the Royal Meteorological Society (UK), the World Meteorological Organization, the American Quaternary Association, and the International Union for Quaternary Research. Also major international institutions related to biology, life sciences, and human health, and other professional societies.
Joining the consensus of major science bodies have been reports from the Pentagon, the International Energy Agency, the World Bank, and the National Intelligence Council.
All say, in essence, the same thing: the planet is warming due to increases in GHG emissions from human activity, primarily the burning of fossil fuels, and the climate consequences will be dire if action is not taken to mitigate GHGs.
Non-committal:
The American Association of Petroleum Geologists, which once dissented from the consensus on climate change for obvious reasons, retracted their dissent in 2007 and now offers no definitive statement. Also without a position statement: the Canadian Federation of Earth Sciences, and the Geological Society of Australia.
Dissenting:
None. After 2007, no scientific body of national or international standing rejected the findings of human-induced effects on climate change.