jump to navigation

David Crisp, Monday, 11-23-15 November 24, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , , , ,
1 comment so far

David Crisp, Monday, 11-23-15

http://archived.thespaceshow.com/shows/2591-BWB-2015-11-23.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest: Dr. David Crisp. Topics: NASA Orbiting Carbon Observatory (OCO-2), Earth’s CO2 environment and more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

We welcomed Dr. David Crisp to the show to discuss the NASA Orbiting Carbon Observatory-2(OCO-2) satellite. During the first segment of our 94 minute program, Dr. Crisp started out by presenting a short overview of the OCO satellites, the first two of which did not make it to orbit due to fairing failure after their Vandenberg launch. For the third attempt, NASA switched rockets to the Delta 2 and the satellite made it to orbit without a problem. Dr. Crisp then explained how OCO-2 works, how it detects and measures CO2 in the atmosphere from the ground up. He explained the color intensity and why the information is so accurate. I asked him to compare OCO-2 data with climate models. Here, Dr. Crisp stressed the fact that he was not a climate scientist or policy maker. That said, he did compare and contrast OCO-2 data with climate models to the degree reasonable comparisons can be made. We talked about natural sources of CO2 on earth, both land and water (ocean, rivers, and lakes), as compared to manmade sources of CO2. Dr. Crisp explained the emitting and absorption capabilities from the natural CO2 sources, photosynthesis with plants, and the fact that manmade CO2 is only emitted, not absorbed. This CO2 can stay in the atmosphere for a thousand years or so. He talked about the total parts per million of CO2 in the atmosphere, how it has gone down and now is going up over the years and the amount of human created CO2 in the atmosphere and how that has increased over the years. Listeners asked about methane but OCO-2 was not designed to detect methane. He was also asked about water vapor. Dr. Crisp explained that water vapor in the atmosphere was detected and measured by other satellites, particularly weather satellites so it was not part of this genre of satellites. Jack emailed in a question to point out that a pause was going on for the past 19 years or so and the planet was not cooling despite human CO2 increases. Dr. Crisp offered an explanation for the pause so don’t miss it.   Jane from Seattle brought up the fact that warming and cooling on Earth has been going on since the beginning of time, without human produced C02. She asked how this could be given the conclusions many make regarding the increase in human produced CO2 levels for today causing global warming. Don’t miss how Dr. Crisp responded to Jane. Dr. Crisp also talked about solar warming and cooling cycles and said we are currently in a solar cooling cycle. Randy emailed in a question about the draught in California and its relationship to CO2 increases.

In the second segment, Becky in Las Vegas sent in a note asking about the climate and atmosphere on Venus and Mars given our guest has studied both planets. She was looking for a common link with Earth or maybe a common trend. Dr. Crisp had much to say about both Venus and Mars. Later in the discussion, I asked if humans were on Venus with advanced technology, could they have intervened in the global warming process and mitigated the impact of it. He said he doubted it, explained why and then the same question was asked about Mars though the situation on Mars was and is different than on Venus. For the most part, Venus was too close to the sun to do anything about it and Mars was too far to do anything about the Martian problems. This is why Earth is in the Goldilocks zone and why we search for exoplanets in this zone. Later, Dr. Crisp talked about today having the highest CO2 levels ever and the growing Earth population which is around 7.2 billion people having nearly doubled over the last 45-50 years. This led us to a discussion about energy, including coal, natural gas & nuclear power. He had some surprising comments about China and coal, don’t miss them. We also talked about India and its use of coal, then Dr. Crisp talk about the need to be able to store power, use solar and wind power, and to enlarge the grid to take wind or solar from areas where it was strong to be able to ship to areas that needed it. He also talked about the need to improve energy storage. Near the end of the program, I asked about any surprises discovered from the OCO-2 data. We then talked about how long OCO-2 would last and here, we talked about the design as a demo satellite without redundant or backup systems. A listener asked if cubesats could do such an OCO-2 type mission. Don’t miss his answer but the simple one was no because the technology for doing this requires hardware that is considerably larger than could be used by a cubesat. Before the show ended, we talked about the NASA Earth Science Budget, the cost per taxpayer, and our ability to freely download OCO-2 data off their website. He then identified the largest user and downloader of the data. I bet you will be surprised by what he said. NASA was the second largest downloader of the data.

Please post your comments/questions on TSS blog. You can reach Dr. Crisp through me or through a JPL search for his name and information.

Dr. Judith Curry, Monday, 8-24-15 August 25, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
add a comment

Dr. Judith Curry, Monday, 8-24-15

http://archived.thespaceshow.com/shows/2540-BWB-2015-08-24.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest: Dr. Judith Curry. Topic: Climate science, policy and politics. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm. For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience. We welcomed Dr. Judith Curry to the show to discuss climate science as Dr. Curry is a noted climate scientist from Georgia Institute of Technology. Follow Dr. Curry on her exceptional blog, Climate Etc. @ http://judithcurry.com. Her faculty page website at Georgia Tech is http://curry.eas.gatech.edu .

In the first few minutes of our 55 minute discussion with Dr. Curry, I asked her for a brief history & time line of when the issue of climate science got the attention of the public and started to be highly politicized. Dr. Curry traced it back to the late 90s and then the 2001 UN Assessment. I asked her about the partisanship, the public being confused, and more and she said these were normal states to be in regarding climate science which she said several times during the show was a “wicked mess.” Dr. Curry then gave us a brief history of warming trends going back hundreds of years, their possible causes and then she talked about the complexity of climate data and how hard it was to correlate, make assumptions with, and to draw useful conclusions for sound policy making. We talked about multiple sources of data collection from space resources to climate models. Regarding climate models, she said they run hot, everyone knows it, but it is very hard to fix the problem and then she explained why. Listeners asked about bias in the data, news reports, even with other scientists. Bias and the use of proxies to spread this or that perspective on climate science was all too common and is a problem. Another of Dr. Curry’s points was that given the problems with climate data, there are “deep uncertainties” regarding the state of climate science but that does not mean the risks should be ignored. The balancing act is to understand the data as objectively as possible to manage the risks in the best way possible. When asked by listeners about regulations, she said that a better way to mitigate possible climate problems was through the use of technology and innovation. Don’t miss her comments about this, especially as she applied them to the energy business. She also brought up the risk of serious unintended consequences to whatever we do, whatever policies we put in place, again because there is so much uncertainty with the data and the subject is very complex and not lending itself to simple solutions. Dr. Doug called the show to ask about solar cycles. Doug kept asking the question though our guest did respond. Specifically, I believe Doug was asking her how solar cycle length correlates with global surface temperatures. Listen to the exchange and see what you think about this mini-discussion. Later Doug sent me a graphical image related to his series of questions but our discussion had moved on plus I had no way of getting the graph to Dr. Curry for discussion. Listeners asked Dr. Curry about emissions, CO2, regulatory mandates and policy. Another question for Dr. Curry focused on scientific consensus regarding climate change issues. Don’t miss this discussion. BJohn asked about planetary science & solar system climate studies. Later, she was asked about testifying before Congress. Dr. Curry said there was a difference between testifying in the House as compared to the Senate. I asked if she had ever given a presentation to the UN or elsewhere. In response, she talked about her recent experience speaking before Parliament in the UK to the House of Commons. Compare what she said about the UK experience to her congressional experience. Near the end of our discussion, Dr. Curry spoke about her climate change and science blog, Climate Etc. per the above URL. If you are interested in these subjects, following her blog would be highly beneficial. Before the program ended, I asked if her graduate students came to the classes with a bias or if they were open minded in their climate science studies. I then asked if climate science in the U.S. was dependent on who the president was and what party was in power. Dr. Curry had very interesting comments on this plus she gave us the recent history of what happened to the field over the past several administrations, both Democratic and Republican. Finally, I asked how important it might be for the general public to have a good, bias free understanding of climate issues. Her response might surprise you so make sure you hear what she had to say about this and science education in general. A last minute question was asked about the famous hockey stick graph, then our guest provided us with good, solid closing comments.

Please post your comments/questions on TSS blog above. You can email Dr. Curry through me at drspace@thespaceshow.com.

Dr. Donald Rapp, Monday, 4-20-15 April 21, 2015

Posted by The Space Show in Uncategorized.
Tags: , , , , , , , , , , , , , , , , , , , , ,
29 comments

Dr. Donald Rapp, Monday, 4-20-15

http://archived.thespaceshow.com/shows/2457-BWB-2015-04-20.mp3

Your Amazon Purchases Helps Support TSS/OGLF (see www.onegiantleapfoundation.org/amazon.htm)

If you rate shows on live365.com, email me your rating reasons to help improve the show

Guest:  Dr. Donald Rapp.  We discussed using indigenous resources to facilitate HSF to Mars, then the great climate change debate based on facts not agendas.  Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, https://thespaceshow.wordpress.com.  Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. In addition, please remember that your Amazon purchases can help support The Space Show/OGLF. See www.onegiantleapfoundation.org/amazon.htm.  For those listening to archives using live365.com and rating the programs, please email me as to why you assign a specific rating to the show. This will help me bring better programming to the audience.

 

We welcomed back to the show Dr. Donald Rapp to discuss two important topics.  In the first segment we addressed using indigenous resources to facilitate human spaceflight to Mars and the MOXIE experiment on Mars 2020.  In the second segment, Dr. Rapp examined the climate change debate without out preconceived belief systems by an honest examination of the data.  To start our first segment, Dr. Rapp talked about the massive amounts of propellant needed for a human mission to Mars which then led us to discussing using resources on Mars to make propellant for the return to Earth.  Our guest was asked about going to Mars via the Moon and using lunar ice to make propellant for the Mars mission.  This proved to be quite a mini-discussion as Dr. Rapp was skeptical about the use of lunar resources including water ice as an assist for a manned Mars mission.  Many listeners asked him challenging questions about his position and conclusions do don’t miss this important discussion.  Later in the segment a listener asked Dr. Rapp about the potential benefits of using nuclear power and nuclear propulsion.  This too was a fascinating mini-discussion so don’t miss it, especially the call on the subject from listener Kris.  Dr. Rapp was asked about the MOXIE experiment which we talked about at length, then he was asked about the need for heavy lift rockets to Mars.  Our guest supported heavy lift which he defined as a 100-120 tons to LEO.

 

In the second segment, climate change was our main topic.  Here he talked about extreme agendas by both the climate alarmists and the climate skeptics and said a new group was emerging which he called the “lukewarmists” who actually and honestly evaluated the data without a preconceived belief system.  Dr. Rapp went through the known facts, the history of the subject, the warming periods, the CO2 levels and where on Earth warming mostly took place though there has been no warming from 1998-2015.  We talked about sunspots and climate change and the impact of El Nino and La Nina.  He also talked about global energy usage and the projected increases for the 21st century and beyond.  The increasing use of power and pollution by China and India were important factors in this discussion.  Listeners had many questions for him including many wanting a way to deal with excessive, costly and unscientific regulations that are forced on the people by politicians who don’t know the facts and have an agenda to their behavior.  No solutions were offered.  A teacher wrote in about the challenges she has teaching factual climate change to her students because parents on both sides of the issue come in and complain that the “truth” was not being taught in the class.  Dr. Rapp offered us concluding remarks around the basic idea that everything is complicated including sending humans to Mars and dealing with climate change issues.

 

Please post your comments on TSS blog.  You can contact Dr. Rapp through me.