Science Q&A: Cold Weather & Global Warming
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From: Mike Jr on 26 Jan 2010 10:15 On Jan 26, 9:38 am, Igor <thoov...(a)excite.com> wrote: > On Jan 25, 3:44 pm, Mike Jr <n00s...(a)comcast.net> wrote: > > > > > On Jan 25, 1:26 pm, Sam Wormley <sworml...(a)gmail.com> wrote: > > > > > Science Q&A: Cold Weather & Global Warming > > > > Jay Gulledge, Senior Scientist and Program Manager for Science & Impacts > > > > > Is heavy snowfall or unusually cold weather inconsistent with global warming? > > > > > You need two things to create heavy snowfall: moist air and cold air. The two generally > > > > don't occur in the same air mass because cold air can't hold much moisture. So you > > > > need two air masses, one that is warm and moist and one that is cold and dry, to > > > > collide with each other. > > > > > This condition is not only consistent with global warming, but it can be expected > > > > to occur more frequently in certain places as a direct result of global warming. > > > > Read more... [http://rs6.net/tn.jsp?et=1102959188264&s=26950&e=001q-qfCbFCZxg8RGZho...] > > > But global warming should make it less likely that those cold arctic > > blasts head south. > > Ask yourself this question: Why does the arctic air always flow more > or less from northwest to southeast? Once you answer this question, > maybe you'll understand just how silly that statement is. > > > Given that the temperature anomaly is on the order of 1/5 of a single > > degree Celsius, Jay Gulledge is claiming an amazing effect for such a > > small stimulus. So what should we expect? As CO2 builds up the world > > goes more and more into an ice age? > > There's some consensus on that. Sorry big guy, I am not following you. --Mike Jr.
From: tg on 26 Jan 2010 10:20 On Jan 26, 9:38 am, Igor <thoov...(a)excite.com> wrote: > On Jan 25, 3:44 pm, Mike Jr <n00s...(a)comcast.net> wrote: > > > > > On Jan 25, 1:26 pm, Sam Wormley <sworml...(a)gmail.com> wrote: > > > > > Science Q&A: Cold Weather & Global Warming > > > > Jay Gulledge, Senior Scientist and Program Manager for Science & Impacts > > > > > Is heavy snowfall or unusually cold weather inconsistent with global warming? > > > > > You need two things to create heavy snowfall: moist air and cold air. The two generally > > > > don't occur in the same air mass because cold air can't hold much moisture. So you > > > > need two air masses, one that is warm and moist and one that is cold and dry, to > > > > collide with each other. > > > > > This condition is not only consistent with global warming, but it can be expected > > > > to occur more frequently in certain places as a direct result of global warming. > > > > Read more... [http://rs6.net/tn.jsp?et=1102959188264&s=26950&e=001q-qfCbFCZxg8RGZho...] > > > But global warming should make it less likely that those cold arctic > > blasts head south. > > Ask yourself this question: Why does the arctic air always flow more > or less from northwest to southeast? Once you answer this question, > maybe you'll understand just how silly that statement is. > > > Given that the temperature anomaly is on the order of 1/5 of a single > > degree Celsius, Jay Gulledge is claiming an amazing effect for such a > > small stimulus. So what should we expect? As CO2 builds up the world > > goes more and more into an ice age? > > There's some consensus on that. Which is there a consensus on? The statement that a temperature anomaly in the mean temperature is a 'stimulus' is as nonsensical as the business about the cold arctic air. -tg
From: Sam Wormley on 26 Jan 2010 10:32 On 1/26/10 1:40 AM, Roger Limbaugh wrote: > Sam Wormley<swormley1(a)gmail.com> wrote in > news:0rydnf9wkPfbf8DWnZ2dnUVZ_sNi4p2d(a)mchsi.com: > >> >>> Science Q&A: Cold Weather& Global Warming >>> Jay Gulledge, Senior Scientist and Program Manager for Science& >>> Impacts >>> >>> Is heavy snowfall or unusually cold weather inconsistent with global >>> warming? >>> >>> You need two things to create heavy snowfall: moist air and cold air. >>> The two generally don't occur in the same air mass because cold air >>> can't hold much moisture. So you need two air masses, one that is >>> warm and moist and one that is cold and dry, to collide with each >>> other. >>> >>> This condition is not only consistent with global warming, but it can >>> be expected to occur more frequently in certain places as a direct >>> result of global warming. Read more... > > Stick to amateur astronomy. This weather is affecting my winter observing! How about you?
From: Surfer on 26 Jan 2010 13:56 On Mon, 25 Jan 2010 13:43:15 -0600, "mary" <nospam(a)invalid.com> wrote: > >"Sam Wormley" <swormley1(a)gmail.com> wrote in message >news:0rydnf9wkPfbf8DWnZ2dnUVZ_sNi4p2d(a)mchsi.com... >> >>> Science Q&A: Cold Weather & Global Warming >>> Jay Gulledge, Senior Scientist and Program Manager for Science & Impacts >>> >>> Is heavy snowfall or unusually cold weather inconsistent with global >>> warming? >>> >>> You need two things to create heavy snowfall: moist air and cold air. The >>> two generally >>> don't occur in the same air mass because cold air can't hold much >>> moisture. So you >>> need two air masses, one that is warm and moist and one that is cold and >>> dry, to >>> collide with each other. >>> >>> This condition is not only consistent with global warming, but it can be >>> expected >>> to occur more frequently in certain places as a direct result of global >>> warming. > > >what a load of BS. > No. Its correct. Another point is that if CO2 traps heat near the earths surface, then air higher up will receive less heat from the surface so will become colder.
From: Bill Ward on 26 Jan 2010 14:10
On Wed, 27 Jan 2010 05:26:04 +1030, Surfer wrote: > On Mon, 25 Jan 2010 13:43:15 -0600, "mary" <nospam(a)invalid.com> wrote: > > >>"Sam Wormley" <swormley1(a)gmail.com> wrote in message >>news:0rydnf9wkPfbf8DWnZ2dnUVZ_sNi4p2d(a)mchsi.com... >>> >>>> Science Q&A: Cold Weather & Global Warming Jay Gulledge, Senior >>>> Scientist and Program Manager for Science & Impacts >>>> >>>> Is heavy snowfall or unusually cold weather inconsistent with global >>>> warming? >>>> >>>> You need two things to create heavy snowfall: moist air and cold air. >>>> The two generally >>>> don't occur in the same air mass because cold air can't hold much >>>> moisture. So you >>>> need two air masses, one that is warm and moist and one that is cold >>>> and dry, to >>>> collide with each other. >>>> >>>> This condition is not only consistent with global warming, but it can >>>> be expected >>>> to occur more frequently in certain places as a direct result of >>>> global warming. >> >> >>what a load of BS. >> > No. Its correct. > > Another point is that if CO2 traps heat near the earths surface, then > air higher up will receive less heat from the surface so will become > colder. Perhaps you could explain exactly how CO2 "traps" heat. My understanding is that GHGs convert LWIR into sensible heat. The warmer GHG molecules then heat the surrounding air, which convects high enough to radiate to space via GHGs. Since the air is free to convect there's no "trapping" of energy. Can you explain why you think there's "trapping", or are you just believing it because you've been told to? |