Eunice Foote, John Tyndall - Greenhouse Effect phenomenon established 1856
https://royalsocietypublishing.org/doi/10.1098/rsnr.2018.0066
Svante Arrhenius - theoretical global heating paper pub’ 1896
https://www.rsc.org/images/Arrhenius1896_tcm18-173546.pdf
Charles David Keeling starts methodical collection of CO2 data at Mauna Loa Observatory - 1958 (CO2 315 ppm - current >420 ppm)
https://keelingcurve.ucsd.edu/
Bell Telephone Science Hour -1958, global heating by the greenhouse effect is a widely disseminated concept
https://cleanet.org/resources/42957.html
Exxon Mobil 1977 - Evidence of Climate Change hidden from public
https://www.scientificamerican.com/article/exxon-knew-about-climate-change-almost-40-years-ago/
Global Climate Change Prevention Act 1989
https://www.congress.gov/bill/101st-congress/senate-bill/1610?s=1&r=2
Mann, Bradley & Hughes 1999 publish a paper including what would become known as the (now famous) “hockey stick curve” showing a geologically recent rise in temperature (post industrial revolution). Links include a wikipedia article for good discussion and multiple “hockey sticks” and a searchable NOAA page full of paleoclimatology science
Ice core data (800,000 years steady oscillation with a hockey stick at the end (post industrial revolution).
Paris Agreement to limit warming to 2℃, pursue efforts to keep temperature 1.5 ℃ 2015