Science is skepticism. If someone isn't a skeptic, then they're not a scientist: they're a politician or an advocate (zealot). While we should attack arguments and not people, you can look at the pool of some of the biggest advocates for a cause, and their claims and bonafides, and see how they stack up. People like Alexandria Ocasio-Cortez, Bill Nye, Dennis Hayes, Garrett Hardin, Greta Thunberg, Ira Einhorn, John McConnell, John Tanton, Leonardo Dicaprio, Michael Moore, Paul R. Ehrlich, Saul Alinsky, and so on. Your causes are defined by your spokespeople, and their positions/accuracy... especially if they aren't moderated by the more credible at the time. What the loudest voices of Climate Activists have in common are hatred of free market capitalism and individual rights, scientific ignorance, claims way out ahead of the facts, and a willingness to practice human sacrifice (punish civilization and drive us back to the stone age or authoritarianism, no matter how many lives it costs, to save Mother Earth from thriving civilization).
People that argue consensus means we should look at who some of the vocal consensus is, as well as the quality of their positions (and historical accuracy of them). Consensus is the bandwagon fallacy (appeal to authority), but it's worse if you have too many idiots as your biggest and loudest supporters. That doesn't prove you wrong, but it sure shows that the most popular people and most popular arguments made by your side are not the moderate or rational ones.
List of Climate Advocates
Alexandria Ocasio-Cortez - The progressive left has fostered disinformation and sensationalized problems with evil freedom/capitalism for so long, and regurgitated it through the media/educational institutions, so much, that their kids are buying the bullshit. Thus, they keep moving further and further into loonie left land. And none exemplify that better than Alaxandria Ocasio-Cortez, a limousine socialist that won the NY Primary against Joseph Crowley: a 10 term establishment guy. While Crowley was far left Representative, he wasn't far left enough for the DNC's new generation, and so Cortez beat him out promising recess will be longer and all the toys and candy will be free. The media played her as a founding a grass roots movements, but it's astroturf (Fake Grassroots), she was bought and paid for by Justice Democrats and they interviewed her as their Manchurian candidate. Much of the media and mainstream left defend her many absurd and anti-American statements, so she is a significant voice in the party. Plus, based on her years of expertise as a bartenders, she's one of their most educated advocates for Watermelon environmentalism: the ripe red fruit of socialism wrapped in a Green/Environmental rind.
Bill Nye -
Dennis Hayes - Earth Day/Week, Dennis Hayes also created Bullitt Foundation dedicated to ensuring the Pacific Northwest is the most “progressive” region in the nation.
Nelson’s teach-in (propaganda) efforts were aided by a young man named Denis Hayes. Hayes was student body president while at Stanford, and well known for organizing anti-Vietnam war protests. Hayes heard about Senator Nelson’s teach-in concept and eventually helped Nelson institute the practice nationwide, and was praised and awarded for helping to stage a huge protest over something that no one disagreed.
A sampling of his eco-activities includes:
- New York Times ran an article on Hayes after the first Earth Day titled, "Angry Coordinator of Earth Day: Denis Allen Hayes"
- Hayes bragged that he fled overseas because “I had to get away from America.”
- Hayes made sure his organization did not even produce Earth Day bumper stickers because “they go on automobiles.”
- In it he whined about how man was causing Global Cooling
- Later in response to blocking logging, Hayes boasted, “We have raised sixteen million dollars in just a few weeks to preserve 25,000 acres of forest and not one of the donors will ever go there.” (They bought rights to logging, to obstruct logging). The results? Seven years later this forest burned to the ground (causing far more pollution and CO2 than logging), because there was no logging interest culling the trees, or paying to maintain the forrest. Big forestry harvests private forests instead.
Garrett Hardin - Despite the fact that it was disproven 160 years before he wrote it, in 1968 Garrett Hardin wrote his pessimistic scare-paper called "tragedy of the commons”  to regurgitate and repopularize the disproven ideas of Malthus and Lloyd, with the intent of (his words) drawing attention to, "the damage that... individuals can inflict on the environment”. Hardin preached to the gullible, "Freedom in a commons brings ruin to all” (or the corollary, "tyranny can save us”).
It was shredded by the academics of the era (including Nobel laureates), as they’d proven the wealth of the commons, and how common lands usually over-performed government controlled resources. But in the environmental movement, feelings are more important than facts, so Hardin is often quoted in revered tones anyways. He might have been completely wrong, and done poor academic research, but he gave good feels, and that's what's really important. (To some).
Greta Thunberg -
Ira Einhorn - Another Earth Day/Week Co-founder is Ira Einhorn, who was famous in the counterculture, anti-establishment, and anti-war movements of the 1960s and 1970s (known as). He was the MC (Master of Ceremonies) for the first Earth Day, held in Philadelphia -- and was known as one of the co-founders. Of course, his role was later downplayed by people that wanted to distance themselves from him -- but at the time, he embodied the movement, and was loved by all for his views.
Why would leftists want to distance themselves from Einhorn (when they celebrated him at the time)? Because by 1977 he became known as the "The Unicorn Killer" after his ex-girlfriend Holly Maddux was found mummified in a trunk in his closet: packed in Styrofoam pellets, air fresheners, and newspapers. (He called himself the Unicorn because "Einhorn" in German, translates to one-horn in English).
He was eventually (2001) extradited to the U.S. from France (where he was hiding out), and convicted to life in prison -- despite his testimony that Maddux was murdered by CIA agents who framed Einhorn, because of his "investigations" on the Cold War and "psychotronics". This is the guy that embodied the Earth Day movement.
John McConnell - The forgotten first founder of Earth Day/Week was Pentecostal John McConnell who sponsored food for Hong Kong refugees, and later "a minute for peace" to just think about peace and the wellbeing of others for one minute a day. He decided if a minute was good, a whole day would be better, and after a speech at the U.N. (UNESCO), that became a global holiday to celebrate Earth's life and beauty and to advance peace, set for the Spring Equinox (March 21, 1970) or "Earth Day". And if the story stopped there, it would be fine. But it doesn't stop there.
Like often happens, when you feed the trolls (or Politicians/Glory-Seekers/etc), that take ideas (and taxes, laws, regulations) and pervert them for their own agendas. John MCConnell's dream fell victim to this truism.
John Tanton - Earth Day/Week: anti-population and anti-humanity. With that came not only pro-birth-control, sterilization, pro-abortion, eugenics, racism -- but also anti-immigration. Enter John Tanton, early earth day supporter, and founder of many America First, anti-Immigration charities and non-profits (FAIR, U.S. English, ProEnglish, The Social Contract, and Society for Genetic Education). He was very welcomed early on, and tolerated later on. While the far-left supports all/most of the same causes as Tanton, they don't want to be seen as supporting those things, so there's sort of a love-hate thing going on. He's like their ugly girlfriend, that they want to come over for a booty call, but use their back door in the dark, so the friends/neighbors don't see her visiting.
Leonardo Dicaprio -
Michael Moore -
Paul R. Ehrlich - Hardin and Malthus, entitled "The Population Bomb". Basically saying that if you didn’t give government all your money and rights now so they could enact compulsory population control. there would be mass starvations and war in the 1970’s and 1980’s that would wreck civilization. He is credited with being one of the founders or at least inspirations behind Earth Day/Week. Despite the opposite of all his predictions coming true, he claims to this day that his book was, "way too optimistic”. Showing this old dog can’t learn from his mistakes. And because his ideas were so wrong, and derivative, he’s won every award the left can throw at him: Sierra Club, World Wildlife Fund, MacArthur Prize, UN, American Institute of Biological Sciences — it’s like the whose who of those that don’t know what’s what.
Saul Alinsky - If you need a far, far left fanatic, then you better call Saul. He is the epitome of post-modern Marxism: undermining everything that is established good, supporting subverting the establishment, promoting lies for a "good cause" (defined as anything Saul agrees with). To quote from Sixteen Candles, Saul is kinda like the king of dipshits (I judge him partly by his followers). He deserves credit for being their leader, but they say you can judge a man by the company he keeps, and that's how I judge both Saul and his followers. He advocated for many things, like Climate Scarism, but only because it furthered his agenda of destabilizing our government and created an excuse for taking over people's lives.