tag:blogger.com,1999:blog-28837843.post5762878881688235255..comments2024-03-19T07:10:27.303-07:00Comments on Quark Soup by David Appell: From the Stupid to the RevoltingDavid Appellhttp://www.blogger.com/profile/03318269033139447591noreply@blogger.comBlogger20125tag:blogger.com,1999:blog-28837843.post-65899496874575490962015-11-18T10:06:15.022-08:002015-11-18T10:06:15.022-08:00David in Cal: 1. Longer growing season.
This has ...David in Cal: <i>1. Longer growing season.</i><br /><br />This has brought higher crop yields in some cases. It has also brought more crop pests, and some crop yields have fallen because bees and other pollinators are not around at the right time. In general, the growing season isn't long enough because it won't allow two crops per season. ("Winter wheat" has been a thing for some time, but I haven't heard of "winter corn.")<br /><br /><i>2. More land in Canada, Russia, Northern US, and Scandanavia (sic) available for agriculature (sic).</i><br /><br />Much of the land in Canada has been scraped clean of good soil during the last ice age. I presume the same is true of Siberia. Also, if it becomes possible to grow corn in Canada, it probably becomes impossible to grow it in Kansas. Shifting agriculture to follow the northward trend of conditions is likely to be hugely expensive. And then there are the likely shifts in rainfall patterns to consider.<br /><br /><i>3. CO2 is often added to greenhouses, because it's great for plant life. Higher levels of CO2 allow plants to grow with less water.</i><br /><br />True (for some plants.) But water is still needed — as are other nutrients. If they are not available in proportion to CO2, yields will not improve.<br /><br /><i>4. Global warming leads to greater evaporation of the oceans and more rain.</i><br /><br />I mentioned that rainfall patterns are likely to shift. That's a problem. Also, the trends seems to be toward longer droughts interleaved with gully-washer downpours. Not conducive to growing crops.<br /><br /><i>5. In fact, food supply has grwon (sic) sharply since the 1970's (E.g., see figure 3 at http://www.pnas.org/content/96/11/5929.full )</i><br /><br />Figure 3 shows yield per hectare of cereal grains, which has indeed tripled. However, Figures 1 and 2 show net cereal production falling since about 1985, except in Asia. Cereal grains are good, but green leafy vegetables are also important. And rice, the principal grain of Asia, may fail to germinate at the temperatures reached later this century.<br /><br />The bottom line is that it's unclear whether agriculture in general would improve as the world warms.Chris_Winterhttps://www.blogger.com/profile/14664395947020918727noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-23163903589389115292015-11-18T09:38:26.680-08:002015-11-18T09:38:26.680-08:00David in Cal wrote:
"There are several reason...David in Cal wrote:<br />"There are several reasons to believe that global warming and CO2 growth have increased world food supply so far."<br /><br />You didn't provide evidence in support of this claim. <br /><br />Do you have any evidence? David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-24914035151296134972015-11-17T20:38:10.680-08:002015-11-17T20:38:10.680-08:00There are several reasons to believe that global w...There are several reasons to believe that global warming and CO2 growth have increased world food supply so far. (although that's not to say what the impact of excessive future warming might be.)<br /><br />1. Longer growing season<br />2. More land in Canada, Russia, Northern US, and Scandanavia available for agriculature<br />3. CO2 is often added to greenhouses, because it's great for plant life. Higher levels of CO2 allow plants to grow with less water.<br />4. Global warming leads to greater evaporation of the oceans and more rain <br />5. In fact, food supply has grwon sharply since the 1970's (E.g., see figure 3 at http://www.pnas.org/content/96/11/5929.full )<br /><br />Cheers<br />David in Cal<br /><br />David in Calhttps://www.blogger.com/profile/10222355423128534221noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-88075677441858391802015-11-17T16:59:47.711-08:002015-11-17T16:59:47.711-08:00David: You call 1.4 C/century a "small amount...David: You call 1.4 C/century a "small amount of warming."<br /><br />Do you know the average rate of warming from the last glacial part of the ice age, 25,000 year ago, to the Holocene? <br /><br />About 0.05 C/century.<br /><br />So you're talking about warming that is 30 times faster.<br /><br />Proof: From Shakun et al Nature 2012 Figure 2a:<br />http://www.nature.com/nature/journal/v484/n7392/full/nature10915.html<br /><br />global temperature anomaly in year -18,000 is -3.4 C<br />global temperature anomaly in year -11,000 is +0.0 C<br /><br />so the average temperature change is 3.4 C in 7000 years, or ~ 0.05 C/century, compared to GISTEMP's 30-year trend of 0.16 C/decade<br /><br /><br />David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-47264713104511274802015-11-17T16:54:58.586-08:002015-11-17T16:54:58.586-08:00"However, the satellite measurements show tha..."However, the satellite measurements show that since 1979, temperatures have risen at a rate less than 1.5 deg C per century."<br /><br />Bull. You cannot linearly extrapolate less than 40 years of data for 100 years into the future. <br /><br />"And, this small amount of warming along with increased CO2 may have done more good than harm."<br /><br />Prove it.<br /><br />"They helped increase the world's food supply."<br /><br />False. <br /><br />“For wheat, maize and barley, there is a clearly negative response of global yields to increased temperatures. Based on these sensitivities and observed climate trends, we estimate that warming since 1981 has resulted in annual combined losses of these three crops representing roughly 40 Mt or $5 billion per year, as of 2002.”<br />-- “Global scale climate–crop yield relationships and the impacts of recent warming," David B Lobell and Christopher B Field 2007 Environ. Res. Lett. 2 014002 doi:10.1088/1748-9326/2/1/014002<br />http://iopscience.iop.org/1748-9326/2/1/014002<br /><br />"We also find that the overall effect of warming on yields is negative, even after accounting for the benefits of reduced exposure to freezing temperatures."<br />-- "Effect of warming temperatures on US wheat yields," Jesse Tack et al, PNAS 4/20/15<br />http://www.pnas.org/content/early/2015/05/06/1415181112<br /><br /><br />General Mills CEO Ken Powell told the Associated Press:<br />We think that human-caused greenhouse gas causes climate change and climate volatility and that’s going to stress the agricultural supply chain, which is very important to us.<br />http://www.chicagotribune.com/business/ct-general-mills-greenhouse-gas-cuts-20150830-story.html<br /><br /><br />David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-4951188922632635702015-11-16T08:14:44.293-08:002015-11-16T08:14:44.293-08:00Which is the more urgent problem: Climate change o...Which is the more urgent problem: Climate change or Islamic terrorism? The people David quoted say that the latter is more urgent. For this, they were tarred as "deniers". The trouble with that word is that it ends intelligent debate. The discussion descends to childish name-calling.<br /><br />I think these people have a valid argument. Climate change might do tremendous harm in the future. However, the satellite measurements show that since 1979, temperatures have risen at a rate less than 1.5 deg C per century. And, this small amount of warming along with increased CO2 may have done more good than harm. They helped increase the world's food supply. They helped green the planet by increasing the world's forested areas. This is not to deny that climate change might do great harm at some point in the future.<br /><br />Furthermore, under current technology we have no way to stop the increase in atmospheric CO2. Conservation, wind and solar are great, but they won't be enough to prevent the continued rise of atmospheric CO2. Developing countries such as China and India are going to burn greater amounts of fossil fuels, because these are the cheapest form of energy.<br /><br />OTOH, by one count, Islamic terrorists have carried out over 27,000 deadly terror attacks since 9/11. And, these attacks could become worse due to the current mass migration.<br /><br />Of course there are good arguments that climate change is a more urgent problem than Islamic terrorism. My point is that people ought to look at all the facts and sensibly set priorities. Calling someone a "climate denier" or an "Islamic terrorism denier" doesn't help.<br /><br />Cheers<br />David in CalDavid in Calhttps://www.blogger.com/profile/10222355423128534221noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-66141524970741118382015-11-16T05:38:28.901-08:002015-11-16T05:38:28.901-08:00David in Cal is concerned that "Melting of An...David in Cal is concerned that "Melting of Antarctic ice over land would indeed cause sea level to rise", as it will in the long term, but the more immediate threat is melting of the Antarctic ice shelves and speeding of glaciers feeding these shelves. <br /><br />Such snarky equivocation by David in Cal trying to defend his denial.davehttps://www.blogger.com/profile/05472098969204011008noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-78225250052243227452015-11-15T10:21:01.288-08:002015-11-15T10:21:01.288-08:00David, you snarkily corrected me: The melting of f...David, you snarkily corrected me: <i>The melting of floating ice does not cause sea level to rise. This is Physics 101. </i> <br /><br />You are correct. However, I didn't make that claim. I wrote: <br /><br /><i>Polar ice melt has not caused sea level to rise, so far (although it may do so in the future).</i><br /><br />Melting of Antarctic ice over land would indeed cause sea level to rise. I am concerned about this possibility. No doubt, you are too.<br /><br />Cheers<br />David in CalDavid in Calhttps://www.blogger.com/profile/10222355423128534221noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-23914818960494684062015-11-15T08:37:55.908-08:002015-11-15T08:37:55.908-08:00David Appell wrote: "Deniers are fond of comp...David Appell wrote: "Deniers are fond of complaining that the word "denier" unfairly compares them to Holocaust deniers. I've never thought that"<br /><br />Climate science delusionists often get very hot under the collar if you describe them as deniers. To my knowledge, drug addicts and alcoholics don't winge that one is comparing them to Holocaust deniers when one points out that they are in denial about their problems, but maybe they can think straighter than climate science denialists do?<br /><br />I wonder what the total accumulated "body count" from Holocaust denial, from the past and today, actually is? How much is it likely to be added to in future? I also wonder what the total body count from climate science denialism might turn out to be, should too many of the voting general public get their minds too twisted by it so we never get sufficient early political motivation to avoid the bad consquences.<br /><br />I suspect that the potential that climate science denialism holds for generating humongous body counts outranks that from Holocaust denialism by orders of magnitude so isn't it arguable that climate science denialists who think they are being compared to Holocaust deniers should actually realise that, if it was true, that they should consider that they are being treated with kid gloves?Nick Palmerhttps://www.blogger.com/profile/05360924308743466075noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-78893221614826522012015-11-15T08:35:59.410-08:002015-11-15T08:35:59.410-08:00This comment has been removed by the author.Nick Palmerhttps://www.blogger.com/profile/05360924308743466075noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-671682158617372992015-11-15T06:40:38.179-08:002015-11-15T06:40:38.179-08:00Tamino had a post in June about Gasparrini et al. ...Tamino had a post in June about Gasparrini et al. His conclusion was<br />"There's no sign at all of any excess mortality due to cold temperatures. As for hot spells, the effect is not only present, it’s quite pronounced."<br /><a href="http://tamino.wordpress.com/2015/06/20/killer-heat/" rel="nofollow">Killer Heat</a><br />Worth reading.Jimhttps://www.blogger.com/profile/02870473504805373986noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-40084081989922634482015-11-14T23:49:07.407-08:002015-11-14T23:49:07.407-08:00"2. Alarmists have so far done a terrible job..."2. Alarmists have so far done a terrible job of predicting the impact of rising sea levels. In 2005, the United Nations Environment Programme predicted that climate change would create 50 million climate refugees by 2010. These people, it was said, would flee a range of disasters including sea level rise, increases in the numbers and severity of hurricanes, and disruption to food production. It's now 2015 and there have been hardly any climate refugees. This failed prediction ought to make us a bit modest about our ability to forecast the pace of climate change and its impact."<br /><br />This isn't relevant to the topic of the post.<br /><br />In fact, none of your three bullet items are relevant.<br /><br />Either comment on the topic of the post, or your comments will be removed. <br />David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-90267547721895881752015-11-14T23:46:30.696-08:002015-11-14T23:46:30.696-08:00"3. Polar ice melt has not caused sea level t..."3. Polar ice melt has not caused sea level to rise, so far (although it may do so in the future)."<br /><br />The melting of floating ice does not cause sea level to rise.<br /><br />Not now, not in the past, not in the future. <br /><br />This is Physics 101. David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-79577112180277491182015-11-14T23:45:16.501-08:002015-11-14T23:45:16.501-08:00"Study: Cold kills 20 times more people than ..."Study: Cold kills 20 times more people than heat reports USA Today"<br /><br />David: THINK!! Are we really supposed to heat up the entire world because some governments won't take care of their poor and homeless?<br /><br />Does your claim include the 2,500 who died this summer in India's heat wave?<br />The 2,000 who died in Pakistan's heat wave?<br />The 15,000 French who died in their August 2003 heat wave?<br />The 70-80,000 Europeans who died in that heat wave?<br /><br />You never answer these kind of followup questions -- you just dart and run. <br /><br />It's time to start, because I'm not much interested in taking you seriously anymore. David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-2713764508667843302015-11-14T23:21:56.563-08:002015-11-14T23:21:56.563-08:00Here are some big picture things to consider.
1. ...Here are some big picture things to consider.<br /><br />1. <a href="http://www.usatoday.com/story/weather/2015/05/20/cold-weather-deaths/27657269/" rel="nofollow">Study: Cold kills 20 times more people than heat</a> reports USA Today<br /><br />2. Alarmists have so far done a terrible job of predicting the impact of rising sea levels. In 2005, the United Nations Environment Programme predicted that climate change would create 50 million climate refugees by 2010. These people, it was said, would flee a range of disasters including sea level rise, increases in the numbers and severity of hurricanes, and disruption to food production. It's now 2015 and there have been hardly any climate refugees. This failed prediction ought to make us a bit modest about our ability to forecast the pace of climate change and its impact.<br /><br />3. Polar ice melt has not caused sea level to rise, so far (although it may do so in the future). An article linked on this blog pointed out that Coastal West Antarctic has been gaining snow mass. And, of course, the shrinking Arctic and the expanding Antarctic extent of ice over water have no effect on sea level.<br /><br />Cheers<br />David in CalDavid in Calhttps://www.blogger.com/profile/10222355423128534221noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-10133077356778933582015-11-14T19:44:11.279-08:002015-11-14T19:44:11.279-08:00Thanks much, Sou.
You're right, David in Cal ...Thanks much, Sou.<br /><br />You're right, David in Cal doesn't want to look at the big picture. I can barely stand to look at it myself. David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-90870899116742403292015-11-14T19:39:03.011-08:002015-11-14T19:39:03.011-08:00They say that tragedy brings out the best in some ...They say that tragedy brings out the best in some people and the worst in others. You've covered the subject well here, David. <br /><br />The main points of your article are well-illustrated in the first comment here, aren't they. Rather than deplore the contemptible (and wrong) article by Roy Spencer, or the callous opportunism of other climate science deniers, David in Cal tries to hijack the discussion, whining something along the lines that he doesn't like the word "denier" being applied to climate science deniers.Souhttps://www.blogger.com/profile/08818999735123752034noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-41545092200521952272015-11-14T18:29:07.659-08:002015-11-14T18:29:07.659-08:00False David.
Curry and Lomborg are called deniers...False David.<br /><br />Curry and Lomborg are called deniers because (1) their immediate instinct is to oppose any science published that support AGW and (2) they cite ridiculous sources like blogs and the like in support of their claims, and take people like Anthony Watts seriously. <br /><br />Here's the perfect example from Lomborg:<br /><br />http://scienceblogs.com/gregladen/2015/03/12/lomborg-tells-bangladesh-not-to-worry-about-sea-level-rise/David Appellhttps://www.blogger.com/profile/03318269033139447591noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-88347448485957202862015-11-14T17:38:39.938-08:002015-11-14T17:38:39.938-08:00Above comment from David in Cal.Above comment from David in Cal.David in Calhttps://www.blogger.com/profile/10222355423128534221noreply@blogger.comtag:blogger.com,1999:blog-28837843.post-10364715404004752162015-11-14T17:38:12.697-08:002015-11-14T17:38:12.697-08:00David Appell may have a clear idea of what he mean...David Appell may have a clear idea of what <i>he</i> means by "climate denier". However, as used by various climate alarmists, the phrase "climate change denier" is a kind of all-purpose insult. Yes, as David says, "denier" is a perfectly good dictionary word. And, "climate change denier" has a perfectly good dictionary definition. Namely, one who denies that the climate changes. Of course, David isn't using the word that way. Everyone agrees that the climate changes.<br /><br />Basically, you can be called a "climate denier" for disagreeing in any way with an alarmist. E.g., noted climate scientist Prof. Judith Curry believes that the earth has been warming and that man's emissions of CO2 contribute to the warming. She doesn't deny that global warming might be catastrophic. Nevertheless, she's been called a "denier" because she points out the level of uncertainty in the climate models, and she critcizes the science in some climate papers. <br /><br />Environmentalist Bjorn Lomborg has been called a "denier", even though he maintains that the earth is warming and that man's emissions contribute to the warming. His sin is to point out, accurately, that the CO2 reduction schemes proposed by the EPA and the UN wouldn't be sufficient to reverse global warming according to the IPCC's own models.David in Calhttps://www.blogger.com/profile/10222355423128534221noreply@blogger.com