Tom Talks: A History of Climate…And What to Expect
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- čas přidán 27. 08. 2024
- Climate is in the news. Every day we hear about another climate-related event-a wild fire, a flood, a drought. Yet, how could anyone be sure it’s climate change? In this webinar, we will give you some background concerning climate in general, how it has changed in earth history, why it changes, why ice ages happened in the past (and will happen again!), how we can be pretty sure of certain things but not absolutely sure, and how a few billion puny little human beings could actually change a planet’s climate. (Recorded 12/15/2023)
A few facts. None of this is speculative or controversial
-It's been known in physics for well over a century that CO2 absorbs and re-radiates infrared, AKA heat
-With no CO2, Earth's average temperature would be ~0 F instead of ~61 F.
-Industry raised CO2 to 150% of what has been the normal high for a million years… As CO2 rises so does temperature.
-When heat energy is added to a fluid system it becomes more active.
-A warmer, more active atmosphere means more extreme weather.
-A warmer atmosphere increases evaporation making droughts worse faster with more crop failures and fires.
-A warmer atmosphere holds more water vapor. 7% more per 1 C. This makes precipitation more intense. This produces more and worse flooding. Water vapor is also a GHG.
-A warmer atmosphere melts more ice. The heat plus the melt expand the volume of the ocean.
-Less white ice reveals more blue ocean which absorbs more heat.
-Melting permafrost releases more methane which is a far more potent GHG than CO2.
-Because of geography, the Arctic is warming much faster than the Earth as a whole. This changes the Jet Stream to larger, deeper waves which makes warm, high-pressure and cool, low-pressure areas more extreme producing more extreme weather.
-Warmer oceans means more energy is available to tropical storms.
These are just some of the basic changes to climate and weather. Beyond this is how it affects agriculture and all living things that can’t adapt fast enough to this rapid change.
The "CO2 ... re-radiates infrared" is for sure correct, it must happen. It is NOT however what causes the so-called "greenhouse effect" in Earth's troposphere. The physics of "greenhouse effect" is trivially simple and obvious, basically "colder things radiate less than warmer things" and nothing whatsoever to do with the "re-radiates" that sometimes must happen.
Intresting title. Aren't people finding a huge amount of artifacts in permafrost. If you wanna stop climate change then you need to get in front of the people that actually impact the climate. You wanna talk to those who own private jets, huge factories, trains, and private islands.
Yes, those artefacts were deposited at a time when the clImate was just as warm as it is today.
@sirrathersplendid4825 Actually, it was much warmer in the 12th century but we won't talk about that. They are getting rich telling lies.
@@terenceiutzi4003- That was exactly my point.
@@sirrathersplendid4825 just as warm until those animals were FLASH FROZEN... They know they were flash frozen bc some still had food in their mouths or giving birth. History tells us the climate changes and getting warmer isnt the problem. Fossil fuels have given humans a better life in every way. You can also thank fossil fuels for everything from chapstick to plastic in general. Climate change is a no brainer but as far as the rest is all a mockery that will be the result of harming human kind for real. The reason those in power manipulate the people is bc it's so easy to do. It's like no one has the ability to think outside what they are told especially those with the most education...
Yes., owners of industry are exactly who we're trying to influence but if there is money to be made who cares who it hurts.
Well, it’s not permafrost if it’s melting, now is it?
Also note that the artefacts must have been deposited at a time when the climate was roughly as warm as it is now!
3 million years ago. Before Homo sapiens.
@@christinearmington 10,000 years ago the entire northern hemisphere was covered in ice for millions of years. When this ice receded, permafrost was exposed. Humans without an ounce of technology survived quite nicely. In fact, life flourished during this entire time period.
@@anthonymorris5084 : The entire planet wasn't covered in ice. "quite nicely" would be quite generous.
@@lrvogt1257 Where did I ever say that it was?
@@anthonymorris5084 "10,000 years ago the entire northern hemisphere was covered in ice for millions of years". Say what ? Are you monkeys bashing on typewriter keys ?
Black box over top of screen is a large pity
I've been watching the chem trails from the very beginning were not fucking stupid
If you're upset about "chemtrails," you're really gonna be pissed when you learn about ecological overshoot.
@@SouthCom1917LOL! Yes, how can “they” not be stupid when they get all their “facts” from QANON. Such a reliable source!
Aircraft vapor trails have a slight cooling effect.
Chem trails ... has been a while since some moron has yelled at the sky. Thanks, buddy!
@michaelorton9887 Don't do that ! Because watching the chem trails could damage your eyes and go through and severely damage your brain. Oh no wait, eeeemmmmmm, it's fine, just go ahead & watch, it'll not make any difference to you at all.
At 1:08 Tom speculates on the likelihood of potential temperature rise. He postulates that us humans may get our act together as was done with ozone depleting chemicals. The causes for a less severe rise in temps rather may be that humans likely will be burning less because there is much less oil available (think peak oil) or concurrently and more likely, the smooth functioning of society that support such burning will become chaotic. Given the chances of crop failure, poor distribution of water, goods, energy and waste combined with disease, war and other political tension there is a pretty good chance that things are going to change. Changes such as mass death are scary things and to talk about them is taboo. But mass human death may be the saving grace for the rest of the planet. Such powerful forces that may drive such a potential cannot be denied but rather ought to be embraced. Leave early while the leaving is good!
44 years of climate hysteria and still no mass death. In fact none of the alarmist rhetoric you mention has even come close.
@@anthonymorris5084 : Food insecurity is increasing globally even if there are some local successes. Today people tend to get much better warning so fewer deaths from storms etc but when regional agriculture begins failing there will social stress and political chaos that will effect everyone eventually.
The Sahara is expanding and the Arctic Ice cap is melting. When the Arctic is blue it will absorb an enormous amount of heat. Look up Blue Ocean Event.
This!
@@lrvogt1257 There is no evidence of food insecurity, and this has never been threatened by climate change. It is an issue derived from over population, which the climate movement doesn't even care about.
The expansion of the Sahara Desert is created by wind that moves sand south. The land south of the Sahara isn't turning into sand and certainly not because of warming, the sand is simply moving. All ecosystems across the world evolve and change. Science tells us that somewhere between 5,000 to 11,000 years ago the Sahara was totally green. How do you reconcile this? The climate movement simply has a propensity to find any issue and then dishonestly blame it on climate change.
The Arctic is melting because the planet is warming. This is an indisputable fact. Nowhere is there any evidence that this represents any kind of threat. There is no data that demonstrates anything alive has been threatened by Arctic warming. The hyperbolic pronunciations are all speculative, alarmist and never come to fruition.
@@lrvogt1257 Blue Ocean Event is actually nonsensical isn't it ? Obviously. The physics there is just a tad simple. Very important Social Event though if you're a sociable person, a socialite type of thing.
The description of the (simple, obvious) so-called "greenhouse effect" in Earth's troposphere at 54:07 to 56:57 is entirely incorrect, as per normal for these explanations (presumably because they are all simply Parroted from whatever crummy incorrect source decided decades ago that it was simple enough to fart around the place and seemed sort-of plausible to the average ho hum brain with little education). I've had a bee in my bonnet about that since 2016 when I pondered it and understood properly how it works after 4 hours pondering it. Oh well, I suppose it doesn't matter because it's only the foundation of the entire topic is all.
*"Every day we hear about another climate-related event - a wild fire, a flood, a drought"* You mean just like we've always had since humans began walking upright? Do you think we all used to live in some kind of pristine Garden of Eden where the weather was perfect, and this is all new phenomena? History didn't begin the day you were born. You also spelled wildfire incorrectly.
Thank God!
Finally somebody with sense!
This hysteria needs to stop. We are ruining the civilization trying to "save" it!
WMO reports that extreme weather events have increased 5-fold in 50 years. This is not natural.
The warm peak of this interglacial warm period was 6,000 ago. Earth should still be slowly cooling towards the next distant glaciation. That trend ended abruptly with the Industrial revolution and it has gotten progressively warmer since the last record cold year... 1909. This is not natural. (SEE NASA Vital Signs global temperature)
It's not just that this is the warmest it's been in 125,000 years (look it up) but that it's happening 10x faster than a post-glacial warming.
@@mattiaskallin : What nonsense. New technology is always a boon to the economy. To knowingly allow this to get worse is beyond stupid. This warming IS THE THREAT to civilization.
@@mattiaskallin Yup. The cure is worse than the disease.
@@lrvogt1257 You are engaging in the same tiresome programmed argument. Where did I say that the planet isn't warming?
Define "extreme". It's not even a scientific term. It's a political term used to generate fear. Every single storm today is defined as "extreme". What isn't an extreme weather event, sunshine and blue sky?
5-fold in 50 years? Where does this data exist?
Warmest in 125,000 years? And why 125,000? I have a NOAA graph that goes back 800,000 years. There is no change. It's recorded as "Temperature anomalies" in Celsius. As measured this way it bounced consistently up and down around 16 times, hitting -5 twice and retreated upon arriving close to, or at +2 six times. It almost hit +3 once and today we're at +1. Ironically exactly 125,000 years ago it was the hottest in 800,000 years, so this 125,000 year claim is not only completely incorrect, It's the exact opposite. Just go examine a NOAA graph.
Over the last 600 million years it has been dramatically hotter.
Data proves that humanity has never been safer, healthier or more prosperous than at any time in history, by any metric you care to examine. How do you reconcile this.
Someone needs to talk to the sun.
Why don't you do that. It will be as useful as your comment here.
OK then I'll take the ball there.
Mister Sun Sun Mister golden Sun hiding behind those trees,
These little children are telling you,
To Bayview Mews you've got to be true,
Mister Sun Sun Mister golden Sun,
Won't you please shine down on,
please shine down on,
please shine down on meeeeeeeeeee.
Did that work, talking to Mister Sun ?