Yes, the climate does naturally change over time, and some 22,000 years ago the world was about 4.5 degrees centgrade cooler to the point that Boston was covered by a mile of ice. since then the earth gradually warmed, and went through a few minor long term warming and cooling trends. However in the past 100 years or so, the temperature has gone up by about 1.5 degrees and is set to go up another 3 degrees in the next 100 years. So basically in 200 years we will have as much climate change as we have seen in the last 22,000 years, and the difference between our temperature around 1900 an that around 2100 will be equal to the difference between having a mile high glacier over Boston and where we are today.
To put this in perspective I recommend this graphic (may require some scrolling).
SO many times I wonder, why do people hang out here if they don’t want to learn anything? If your OP has some huge leaps of logic and people go out their way to link to studies and even books (now with 50% more facts!)… why would you keep gurgitating your own specious arguments?
The “Flag Flying Above The Fort” here is Fighting Ignorance. If you don’t want yours fought, wouldn’t you be more comfortable somewhere else?
Minor nitpick: I get the distinction you’re making between the nearly-circular orbits of most of the objects such as planets left over from the original solar nebula, and the high-ellipticity orbits of other bodies such as periodic comets that entered the solar system from elsewhere, but none of the planetary orbits are really circular, mathematically speaking. If the earth’s orbit were truly, exactly circular, astronomy would have developed very differently from the way it did.
I studied Atmospheric Science at Oregon State (at least our baseball team is good). rboyce understands atmospheric science better than most. He’s right that climate change probably isn’t human’s most existential threat. Wear your mask. Endocrine disruptors (e.g. from health care products, prescription drugs) are in drinking-water sources. They can effect human reproduction in concentrations measured in ppb. That’s billion. The problem I have with global climate change is that it became a political agenda, which never seems to lead to good science. Earth won’t develop human-caused run-away global warming like what happened on the planet Venus, and have molten lead on its surface, mostly because we are much further away from the sun. But there is no question we are changing our planet. We need to be careful, but not just about our carbon footprint. Sea level rise probably isn’t the catastrophe we should be focusing on right now.
You’re an idiot, too.
The problem is - by the time global warming is obvious enough for the politicians to care, it will be far, far too late to avoid the worst of the damage. Sea level rise alone could bankrupt the country, not to mention displacing tens of millions of people, and causing enormous ecological damage. Left unchecked, COVID might have caused a few million deaths in the US for a year or so, and then it would have run it’s course. Global warming has the potential to cost tens of trillions of dollars for years on end, and increase the death rate by hundreds of thousands for decades.
It’s not nice to call someone an idiot, even if they are one. Show me any reputable source that backs up your “tens of trillions of dollars” claim, and I won’t call you an idiot.