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Thanks for watching. Let me know if you have any questions.

Thanks for your comment. From the analysis of the empirical data that I presented, it's quite clear that global warming has been increasing - owing to a number of factors, which I enumerated. It remains an open question whether or not the acceleration will continue, or whether it will level off as you propose. Time will tell.

Glad you enjoyed it

Thanks for your comment. Back in the day I watched the Dragnet TV program on a regular basis, but I didn't know that there was a Dragnet radio program. Red Stromwell and the Hat Squad was already a legend by then, so I'm not surprised that he was mentioned on one of the episodes.

Thanks for your comment. I'll take a look to see if there is enough material available for a video.

Was your comment meant for this video on wildfires, or for my recent video on geoengineering?

Edit: I would like to know what timescale and how 12:21 large a sample do we need to produce valid data? I believe the answer is crucial as we don't have much time before things get totally out of hand? What can we laymen do individually and collectively to reduce global warming?

Thanks for your comments and question. I have seen various estimates as to how much SO2 would be required to reduce global temps by about 0.5 deg C. Most run around 5% of the SO2 normally in the atmosphere. So, I would estimate that the amount needed for a valid test would be about 1% or so of the SO2 normally in the atmosphere. That's non-negligible.

Thankyou sir for taking the time toreply.

You are welcome!

Thanks for your comment. Basically what you are saying is that we reap what we sow, and I agree with that.

Thanks for your comment. The authors of this study included estimates of these factors in their analyses. I agree that there are significant uncertainties in these estimates, but similar uncertainties exist in the fossil fuel production and distribution estimates.

Thanks for your comment.

Thank you for watching. Please share with your friends.

@@DrMarkHShapiro Done!

Thanks for your comment. I agree with your note about climate refugees, and your comment about body cooling is helpful. But, as I discuss in the video, the new research shows that especially for older adults that may not be enough to avoid heat injuries depending on temp and rel. humidity.

@@DrMarkHShapiro Yeah, just not enough body surface area and temperature gradient to radiate/convect that excess heat away, as well as too much humidity for sweat to evaporate. I had heat stroke once and saying it's not nice is a massive understatement.

@@skateboardingjesus4006 Indeed!

​@@DrMarkHShapirortid

Thanks for your comment. Climate change has contributed to wildfire problems in many parts of the world.

Yes indeed!

You're welcome

And, your comment is ........?

@@DrMarkHShapiro what does this video mean? (Not hating

ExxonMobil is attempting to prevent shareholders from calling management to account at its annual shareholders' meetings. They are doing this by filing a lawsuit that, if successful, would make essentially impossible for individual shareholders or groups of shareholders to place issuses on the annual meeting agendas of any publicly held company in the United States. CalPERS holds investments in many publicly-held companies, and they occasionally use their ownership of these shares to hold the company management accountable on issues such as climate change.

@@DrMarkHShapiro oh ty

Yes, here is the link: www.pnas.org/doi/10.1073/pnas.2319652121

Thanks Lou!!! Your support is much appreciated.

Yes, I will be posting updates as the fire season progresses.

Very welcome

Yes.

Thank you!

1:04 1:06 ​@@DrMarkHShapiro

Did you have a question about that part of the video?

I've wondered why people don't make the connection between the idea that we are reaching Peak Oil within the next 50 or so years and the obvious trend in Global Warming since the mid Eighteen Hundreds when the Industrial Revolution essentially started... What I mean by that is that it took the planet several hundreds of millions of years to produce the petroleum and we will, essentially, have used it all up within 250 to 300 years.... This aligns perfectly with the Industrial Revolution as well as population growth and the constant rise in fossil fuel usage being the PRIMARY contributors to The Greenhouse Effect... For all intent and purpose, we will have taken everything from the ground and pumped it into the air.... If that isn't the most obvious indicator that the warming is MAN MADE, I don't know what is.... This is so ridiculously obvious.... What it shows me is how powerful the Oil Lobbyists are and how gullible the Climate Change Deniers are.... They love their SUV's SO MUCH, that they're willing to accept the weak argument suggesting that this drastic level of Warming is just "NORMAL".... Looks like we will just have to let it all crash and burn in order to learn the lesson. All that done and said, I'm NOT saying that the "Green" plans we have are going to help in the least.... Both Solar and Wind have huge problems... (Mainly the inability to recycle as well as inefficient power storage systems.) And then there's the giant elephant in the room when looking at Electric Vehicles. (Inefficient Batteries, huge pollution caused by Battery disposal and COAL as being the primary source to charge the Batteries....) Finally, you have the suppression of technologies that could have been Game Changers like the 20% efficiency Solar Panel that was made around the mid Eighties. Had we really invested more heavily in them, we could potentially be near 60% plus efficiency by now.... But sadly, after nearly 40 years, we're still averaging about 20% on Panels..... You also have Stan Meyer and his Dune buggy that ran on water... (Running on Hydrogen created by Electrolysis....) (Of course, all a "Conspiracy Theory"...) There are plenty of other Game Changing technologies that have been shelved all in the name of "More Profit".... It's sad to say, but I've lost a lot of hope in humanity as I get older... Where's that good ole Asteroid when you need it? Perhaps it's time for a Reset....

Thanks for your comment. I agree with most of what you have said.

Western countries including USA have spoiled the climate of the world first, now they are giving lectures on the topic and restricting developing countries to control pollution plus presently marketing those tools and measures to sale to developing countries. You people are culprits.

You are correct, although there have been some questions raised about the validity of that observation. From a climatological point of view, isolated temperature readings are not important. Averages of temperature measurments over large regions or over the entire globe give us information about climate as opposed to weather.

This kills the human.

You're welcome! Please share.

My pleasure! Please share.

Yes, not good news.

Go to the following site for details on the settlement of the class actions suit against the CalPERS LTC program: www.calpersltcclassaction.com/

You are welcome!

Thanks Gayle!

Peter was indeed amazing - a great scientist and a great person.

Yuyyyy

Thanks for your comment. The point of the video is that the reports cited by the media generally are NOT heat island data, but data from the various climate monitoring agencies reporting global average surface temperatures computed from the average temperatures in a large number of sectors that span the globe. Since the urban areas where the heat islands are found cover only about 1% of the surface area, the contribution from heat islands to the overall global average surface temperature numbers is less than 0.2 deg C even if no correction is made for the heat island effect.

I wish you the best with your thesis, and I'm happy that my video helped you.

Thank you Melanie!

Thanks for your comment. I personally have met some deniers who claim that the UHI is responsible for a large part of the global average temperature increase, and others who claim that the UHI distorts the temperature record because there are more weather stations in the urban areas. In the video I tried to emphasize that each grid element used to compute the global average temperature contributes only one value to the average temp for that grid element.

Ben, unfortunately I have appointments all day on the 6th. But feel free to attend and reference anything I said in the video (with attribution if you want)!

You are right on the mark. When I was a graduate student in physics at Penn back in the dark ages, the university president was Gaylord P. Harnwell, who had a distinguished career as a physicist before he became an administrator. Even though Penn was a major Ivy League university, Harnwell insisted on teaching one course in the physics department every year - a great way to keep in touch with the concerns of students and the pulse of the university.

💌@@DrMarkHShapiro

Which direction? More or less bloat?

Thanks Gayle, appreciate your comment.

Thanks for your comment. I agree. Often the advice given by student services advisors is actually detrimental to students - especially for those interested in sequential majors including the sciences and engineering. For example, in my department (physics) most of our courses have prerequisites so it's important for our majors to take their introductory physics courses and their required math courses early. However, the advisers in student services often tell new students to get their general education courses out of the way first. This can delay graduation for our physics majors (and students in other sequential majors) by up to two years.

Thanks Melanie - and thanks for sharing!

Thank you! Your support is greatly appreciated.

It's likely a combination of factors including reduction of particulate emissions from ships owing to new regulations going into effect, relatively low particulate emissions from volcanoes in the past year, the return of El Nino and rising concentrations of greenhouse gases such as CO2 and methane in the atmosphere. The reduction in particulate emissions allows more solar radiation to impact the ocean surfaces. El Nino weather conditions tend to increase sea surface temperatures in the tropics, and the increasing levels of greenhouse gases in the atmosphere cause more heat to be trapped in the lower atmosphere and more infrared radiation to impact the sea surface.

Thanks for the question Ben. The latest estimates show that air travel is contributing about 3.5% to climate change. So while reducing air travel would help, it would result in only a minor reduction in warming.

Yxxycyy

Thank you Melanie. Please share!