The historical record they cite was collected by the very community of researchers whom they attempt to discredit by those facts. It is as if they think the researchers are unaware of those historical facts and that they never realized that there have been warming and cooling periods before.
It just exposes their motivations: scientists are charlatans who don't understand anything when the climate scientists support AGW, but the data from the same scientists is heralded as the real truth when the deniers/skeptics think it supports their own beliefs.
I don’t think that is quite correct. Most ‘climate deniers’ I have spoken with don’t question the competence of scientists, they question their motives and suspect they are simply seeking funding, attention, or both.
advocates = the planet is in peril
deniers = fossil fuel companies are paying us (or, "I hate liberals")It's like discovering your close circle of scientist friends has a anti-vaxxer.
If you don't want to read them, then in summary, describing the 2017 report (itself a followup to a similar 2014 report) Ars mentions:
> If you’re wondering what could have changed since the last report in 2014, the new Assessment highlights a list of areas in which our understanding has improved. That includes the evaluation of the human contribution to individual extreme weather events, higher-resolution climate models producing better simulations of things like hurricanes, and studies of ice loss in Greenland and Antarctica that have bumped the worst-case sea level rise estimates upward.[2]
In other words, the conclusions are the same as they've always been, except we underestimated how bad things are going to be. There is no reputable scientific position to take that says climate change isn't happening or that it isn't human caused. Even Chevron accepts that conclusion at this point.[3]
If you're claming that you know more than both >90% of the scientific community and the actual oil industry, then you are alone in that belief.
[0]: https://journals.ametsoc.org/doi/abs/10.1175/1520-0469(1967)...
[1]: https://science2017.globalchange.gov/
[2]: https://arstechnica.com/science/2017/11/us-government-climat...
[3]: https://www.theguardian.com/environment/climate-consensus-97...
In case I am wrong and you truly believe this stuff, I took the time to at least disprove the source that looked most trustworthy to me in another conspiracy theory comment of yours: https://news.ycombinator.com/item?id=21084305
Entry 3508 talks about 35 degrees Celsius in May of 1892, which for Germany is freakin' hot.
Another entry calls 31 degrees Celsius in June 1818 exceptionally hot, which I would not consider exceptional at all.
And lack of warming trend in the raw data: https://docs.google.com/spreadsheets/d/1mWanx8ojmOkcazzRhDao...
And the new USCRN data showing no significant warming trend in the USA in 12 years: https://wattsupwiththat.com/2017/11/08/the-uscrn-revisited/
And the Canadian data purge: https://twitter.com/EcoSenseNow/status/1174909654297538560
The tin-foil NOAA "cover up" conspiracy the site is pushing means it's spreading conspiratorial misinformation.
This is the new way the left "debates", unfortunately.
There are a decent amount of resources online that are skeptical about the man-made impact on the climate or whether or not CO2 is the temperature knob for the climate.