A basic look at how climate scientists infer that man-made carbon gases are changing the climate, and how this view is contradicted by other climate scientists who are skeptics. I am a former science correspondent with an interest in reporting the facts, not the media hype. My thanks to 9thgate for checking my script for errors. - Potholer54 This video, the second in the series, looks at alternative hypotheses explaining global warming. I am only looking at alternative hypotheses put forward by real, professional climate researchers, and the findings of real, professional climate researchers who disagree with them. Yes, I've left a lot of the detail out. This is a 10-minute video summarizing the arguments and counter-arguments, not a PhD thesis. The comments forum will be free and open, as always, but if you disagree with what real, professional climate scientists say, please take it up with them and dont expect me to defend their point of view. If you have a stunning piece of scientific evidence that disproves one side or the other, dont waste time on my channel, write a paper, and get it peer-reviewed and published in a reputable journal. - Potholer54 I had planned to put several myths in this video, but discovered such an appalling web of deceit and fabrication in this first one that I felt I had no choice but to thoroughly debunk it. Like many ingrained myths, this one is so ubiquitous that it takes an awful lot of hard evidence to convince true believers that it's been fabricated. I'll try to squeeze more urban myths into the next video, from both sides of the climate debate. - Potholer54 This video, the fourth in my Climate Change series, looks at urban myths spawned by two iconic films -- An Inconvenient Truth and The Great Global Warming Swindle. Whatever you "believe" about climate change, there is no excuse for the kind of exaggerations, fallacies and fabrications we see in films like these. My aim is to cut through the junk science designed to evangelize this issue, and show what the actual scientific research shows us. The video cuts short at the end, and the final sentence should read: "As I look at more of the urban myths theyve spawned." - Potholer54 More urban myths about climate change are busted as I look at the Earth's climate over the last 500 million years. What causes it to change? Since carbon dioxide was much higher in the past, why do climatologists say higher CO2 now poses a problem? And of course there's the familiar myth that CO2 can't influence temperatures because the climate was much colder in the past when carbon dioxide levels were much higher. If you have a problem with any of the research that has been done into climate change, please do not waste your time discussing it on YouTube. Write a paper and have it published in a respected, peer-reviewed journal. And no use complaining to me if you think you have found flaws in the work of a particular researcher, write to them and let them know. They will be absolutely delighted to hear from you. Now that the conspiracy theorists have blown off steam, it's time for a more sober analysis of those e-mails and what they mean. I can't go through all of them, there are far too many, and . So I've taken the two that seem to be getting conspiracy theorists most worked up -- Phil Jones's e-mail about "Mike's Nature trick" and Kevin Trenberth's e-mail about a "travesty." I'm glad to see that skeptic websites that cover the science understand what these e-mails actually mean. As you'll see, very few commentators who jumped on the conspiracy bandwagon even before reading the e-mails mandged to get it right. |