You defer to 97 percent of them ? The " consensus " ?
The reason there is a consensus is because there is a
strong consilience of evidence - as shown in hundreds of thousands of research papers in the peer-reviewed Science Journals. This research is summarised for the layperson in publications like this:
Royal Society:
https://royalsociety.org/topics-policy/projects/climate-change-evidence-causes/
National Acadeny of Sciences:
Climate Change: Evidence and Causes » Climate Change at the National Academies of Sciences
or summarised more in depth by the IPCC reports
Fifth Assessment Report - Climate Change 2013
Every major scientific society/association/institution worldwide makes very similar statements like:
American Geophysical Union
http://sciencepolicy.agu.org/files/2...ugust-2013.pdf
Human‐Induced Climate Change Requires Urgent Action
Humanity is the major influence on the global climate change observed over the past 50 years. Rapid societal responses can significantly lessen negative outcomes. Human activities are changing Earth’s climate. At the global level, atmospheric concentrations of carbon dioxide and other heat‐trapping greenhouse gases have increased sharply since the Industrial Revolution. Fossil fuel burning dominates this increase.
Human‐caused increases in greenhouse gases are responsible for most of the observed global average surface warming of roughly 0.8°C (1.5°F) over the past 140 years. Because natural processes cannot quickly remove some of these gases (notably carbon dioxide) from the atmosphere, our past, present, and future emissions will influence the climate system for millennia.
Extensive, independent observations confirm the reality of global warming. These observations show large‐scale increases in air and sea temperatures, sea level, and atmospheric water vapor; they document decreases in the extent of mountain glaciers, snow cover, permafrost, and Arctic sea ice. These changes are broadly consistent with long understood physics and predictions of how the climate system is expected to respond to human‐caused increases in greenhouse gases. The changes are inconsistent with explanations of climate change that rely on known natural influences…
The AGU has also signed onto more recent letters on climate from an array of scientific organizations, including the June 28, 2016 letter to the U.S. Congress:
https://www.eurekalert.org/images/20...ter6-28-16.pdf
Similar statements by all major Science Institutions worldwide.
Here's just a few of them:
American Meteorological Society
https://www.ametsoc.org/ams/index.cf...limate-change/
American Physical Society
https://www.aps.org/policy/statements/15_3.cfm
Geological Society of America
https://www.geosociety.org/documents...10_climate.pdf
National Academies of Science
https://nas-sites.org/americasclimat...ce-and-causes/
American Society of Agronomy
Soil Science Society of America
https://www.soils.org/files/science-...-statement.pdf
The Royal Society (UK)
https://royalsociety.org/~/media/pol...communique.PDF
https://royalsociety.org/topics-poli...idence-causes/
The Geological Society (UK)
https://www.geolsoc.org.uk/~/media/s...rmat.pdf?la=en
The Institute of Physics (IOP)
https://royalsociety.org/~/media/pol...communique.PDF
The Institution of Chemical Engineers
https://royalsociety.org/~/media/pol...communique.PDF
Australian Meteorological and Oceanographic Society
http://www.amos.org.au/Main/About_us...0-700d89c3d4f5
Canadian Meteorological and Oceanographic Society
http://www.cmos.ca/site/ps_pos_statements?a=7
European Academy of Sciences and Arts
http://www.euro-acad.eu/downloads/me...7_-_final2.pdf
European Federation of Geologists
http://eurogeologists.eu/wp-content/...al-Storage.pdf
European Geosciences Union
http://www.egu.eu/about/statements/e...acidification/
European Physical Society
2015 Statement
http://www.eps.org/resource/resmgr/p...rgyPol2015.pdf
Royal Society of New Zealand
http://royalsociety.org.nz/expert-ad...r-new-zealand/
International Union for Quaternary Research
http://www.inqua.org/files/iscc.pdf
World Health Organization
http://www.who.int/mediacentre/factsheets/fs266/en/
World Meteorological Organization
https://public.wmo.int/en/our-mandate/climate