4 ms·

I literally just finished watching this video with a presentation by astrophysicist Valentina Zharkova titled: “In next 30 yrs, global warming prob. will be l

I literally just finished watching this video with a presentation by astrophysicist Valentina Zharkova titled: “In next 30 yrs, global warming prob. will be last thing in our mind” https://www.youtube.com/watch?v=LYOMKLDbeYE https://www.youtube.com/watch?v=LYOMKLDbeYE And to be honest, I don't know what to think anymore.

mistrial9 4y ago
this has the outward appearance of an aging attention-seeker with excellent credentials from forty years ago?
mturmon 4y ago
About VZ: No time to watch that video, but she has been proposing solar explanations for the observed temperature changes, so I assume that's the topic. There are a lot of reasons to reject changes in solar forcing as an explanation for recent warming (as opposed to Milankovitch cycles) - and it has been rejected, although 15 years ago it was still treated seriously. Also, the CO2 rise is very real, and the link of CO2 to warming is clear. It's easy to watch/read "point explanations" for climate phenomena, and get confused. ("I read this paper from 2015 in Nature and ...".) One reason is that laypeople, even those with physics backgrounds, just don't have enough background information to put claims in context. Earth science is hard - so many interacting systems. A better source for motivated laypeople is the NCA - the National Climate Assessment - see https://nca2018.globalchange.gov https://nca2018.globalchange.gov . It's done every 5 years, and the next one is due in 2023.
hannob 4y ago
If you don't know what to think when some person on youtube says one thing and a large collaboration of scientists who are the world's experts of a field (the IPCC) says the opposite in detailled reviews of the current science then you should probably start by learning a few basic things about the scientific process.

4 ms·

I literally just finished watching this video with a presentation by astrophysicist Valentina Zharkova titled: “In next 30 yrs, global warming prob. will be l

by torcete 4y ago

mistrial9 4y ago
this has the outward appearance of an aging attention-seeker with excellent credentials from forty years ago?
mturmon 4y ago
About VZ: No time to watch that video, but she has been proposing solar explanations for the observed temperature changes, so I assume that's the topic. There are a lot of reasons to reject changes in solar forcing as an explanation for recent warming (as opposed to Milankovitch cycles) - and it has been rejected, although 15 years ago it was still treated seriously. Also, the CO2 rise is very real, and the link of CO2 to warming is clear. It's easy to watch/read "point explanations" for climate phenomena, and get confused. ("I read this paper from 2015 in Nature and ...".) One reason is that laypeople, even those with physics backgrounds, just don't have enough background information to put claims in context. Earth science is hard - so many interacting systems. A better source for motivated laypeople is the NCA - the National Climate Assessment - see https://nca2018.globalchange.gov https://nca2018.globalchange.gov . It's done every 5 years, and the next one is due in 2023.
hannob 4y ago
If you don't know what to think when some person on youtube says one thing and a large collaboration of scientists who are the world's experts of a field (the IPCC) says the opposite in detailled reviews of the current science then you should probably start by learning a few basic things about the scientific process.