Great talk!

Good bless you Dr Elliot Aranson.

Very poor presentation. Lots of statements based on no or little evidence. I wished the IPCC conform scientist would finally start talking to the many other scientists who have forwarded scientific evidence that IPCC's theories are full of shortcomings (large uncertainties with regard to the radiation balance, the cloud cover, the natural sinks and the impact of ocean currents for example) which makes it impossible to predict future climate. In fact even in AR 6 it is stated that the models cannot predict future earth temperatures and that there is no evidende of any "tipping point". My proposal: first study climate change in detail before giving lectures .

10:50: "Even if we stopped CO2 emissions now, CO2 levels would not begin to fall appreciably rapidly" (if I heard him correctly). This is in contrast to the fact that the annual rise in CO2 concentration reflects only half of the amount of fossil CO2 added by humans. In other words, the biosphere absorbs half of the current emissions. This is not to be understood as a 'tax' on anthropogenic CO2 emissions but a natural tendency of oceans to respond to high atmospheric concentration and, equally importantly, increased plant growth due to higher CO2 concentration. So if we stopped CO2 emissions, the concentrations could be expected to drop by about half of the current increase in an 'exponential decay' fashion. Here is a great video that lays out the math of the atmospheric CO2 balance: kzbin.info/www/bejne/nquXpIx4bpp_f6Msi=dBBMe--sNv9KLUm0&t=569

6:30: The presenter says, without any verification, that CO2 acts as an amplifier of changes of 'insolation' from Milankovitch cycles. This is true in principle, but it has a very small effect. So small that without it we would see almost the same picture. How do I know this? Because the changes in insolation on the latitude of the edge of the ice sheets changes by as much as 60-80 W/m² from min/max, whereas the radiative forcing of 50% more/less CO2 yields only about 2 W/m². So it's like the elephant and the mouse walking across the bridge and the mouse saying: "Listen to us thumping." Changes in CO2 concentrations with the coming and going of *interglacials* in the current ice age are the RESULT of changes in temperature, not the driver of them. This explains why temperature and CO2 are apparently in sync (with CO2 concentration lagging the temperature record by centuries, although this is not visible on a graph with 4-800,.000 years on the x-axis). Warmer temperature drives some of the dissolved CO2 out of the seawater. The oceans contain several times more (dissolved) CO2 than the atmosphere.

Very good! You did not show the most telling chart and that's CO2 with Temp. The temp has gone up and down with CO2in a range. Now the CO2 is up off the charts. The temp will go up and with it our ability to raise the industrial quantities of food to feed the 8b of us. Not good!

Wonderful lecture. Thanks!

nice!

Great to see. Thanks for celebrating truly great Phil Crews!!!

What a privilege to listen to him discuss Cezanne! He must have been a superb teacher.

WOOHOO! Go Professor Fisher!!!

8:35

1:19:21 The lector's lack of knowledge of construction techniques of the Tiwanaku is astonishing. They did not use silver. They used a molten alloy of copper-arsenic-nickel heated to over 1200°C poured into cramps carved between stone blocks and even then it was not the main method of construction used there. Many other types of techniques were involved, read Protzen's The Stones of Tiahuanaco. Also, the Inca supposedly importing Tiwanaku laborers with a gap of hundreds of years between the Inca and the end of construction of the Tiwanaku complexes, all completed and some would say, in ruins already by 1000 A.D. is far fetched to say the least. Read Inca Architecture by Graziano Gasparini, J. Margolies for a better understanding of the matter.

Banging on about one idea that doesn’t even work unless it evolves by molecular evolution. Keeps banging on about Darwin in 2020 ignoring the Biochem of evolution. Tired, tedious old man hiding his malice behind a softly spoken manner.

name the archeologists and engineers that are working on that problem ? 1:11:19

VERY IMPRESSIVE AND GOOD!

First psychology course I ever took was Social Psychology using his Social Animal book and it completely changed the way I view the world around me. The one book I kept from college at UCSF.

why is it that everytime i try to listen to professor fisher someone is coughing? Pease excuse yourself rude people.

very informative but merits better resolution and much less background noise.

3:10 Introduction done

Please show your appreciation for this video by clicking on SUBSCRIBE and then click the bell symbol for notification when another video is posted.

Impressive! It is very interesting how he memorized different sections of the poem in different tempos; I would love to know if there are reasons behind that.

A gem! I wish to create a curriculum based on these ideas.