Atlantic Conveyor not yet broken. Maybe the Brits will be affected, and so if it gets broken, try to fix it. My guess is the Gulf of Mexico, the GOM puts out so much
hot salty water into the Gulf Stream and so the shape of the ocean floor combines with the bulge of North Africa to keep the North Atlantic stable.
The Antarctic Circumpolar Current is a different matter.
That one already had a major anomaly this past year and knocked a few microseconds off the clock here and there. When the rotational momentum from the ACC Antarctic Circumpolar Current gets knocked into the west coast of South Africa, the continent gets pushed faster.
Whole earth spins a bit faster. This is fun. Just like being on a merry-go-round.
People hop on and fall off. Ocean currents are the same.
Arctic Circumpolar Current spins then goes off track.
Even Magellan could notice the current as we go past Good Hope and
Tierra del Fuego. And when that current breaks into the South Atlantic,
that is measurable and real. So the air and the oceans do interact.
Only the people are too slow to understand what is happening.
The Eureka ALERT is a good post. Hot parched areas can trigger both dust storms and rain and lightning storms. The heat from sunlight can dry wet ground and also the negative feedback, when that system snaps back, will bring rain.
I think of the earth as a big boiling pot. Phase One and Phase Two types of boiling sure do happen. And the transition between Phase One and Phase Two can be truly explosive. Water has a surface tension. When that tension snaps, watch out.
We live in interesting times. The carbon is changing faster in the air during my lifetime than ever before in history. And the truly amazing thing is, we can sit under a tree and watch the clouds build up in the sky.
I love to sit under a tree and watch the seasons change - snow and rain, then sunny and hot and dry. Each year the fruit trees are a bit different.
That reminds me - many pears are ripe now. Apples and peaches had a rough year. Even the blueberries were a bit off and the black berries did better than the
many shades of red, gold and black raspberries. Even many varieties of seedless and seeded grapes tell a story.
Global Warming happens, and methane and carbon dioxide is really building up fast. We can see it in our lifetimes. Sure hope the heat does not make the Arab States restless. They live in a difficult part of the world - the Marsh Arabs and the Nomads in the Desert. Read Kalil Gibran...
I think that the issue quickly becomes a political one because of some of the draconian solutions proposed. It seems that the 'environmental cause' is not just for the environment, but is also being used as cover for a range of socio-economic initiatives. That just complicates an already complicated issue.
I notice that a lot of folk, specifically but not exclusivly those who are not climate scientests, hit on a specific issue, solar insolation as an example, and form a very lightly informed opinion. There is nothing wrong with that if you study and then grow beyond it, but it can really get in the way sometimes. The solar insolation is not a contravening piece of this puzzle. It is an important part of it and has been, since the first few years of this study, a major part of the study. I did read one of the NOAA reports "Temperature Trends in the Lower Atmosphere" from April 2006. This is like an introduction to a small part of this huge body of study. Pretty heavy going for a novice. The killer problem for us novices is that the actual weather prediction from global warming has so many butterfly effects (randomizing factors), that you are unable to, as example, link the specific exceptional heat wave in the US this summer to any specific changes that can be traced directly to global warming. I have not had time to see if I can find any current studies on all the other factors that affect the GW equation. Deforestation, large scale irrigation, the impacts of aerosols and disolved compounds in runoff, and our pressure on some/many critical life forms. Fun to study, if you have a mind to, but kind of scarry to see so many strong points of view that are so badly informed. If we could figure out an optimum course of action, we would not let ourselves take it for the sake of argument.
As an EE I think in simple Thermo terms - heat source, absorbtion, radiation, etc... I certainly am not a thermo expert; I just know enough to be able to mitigate heat when I need to.
I haven't taken the time to research much of this, mainly because I believe it to have a flawed premise. I was party to research in my college days and have seen data that put the whole AGW thing to bed for me. There was data showing a direct corralation between solar activity and planetary warming. Not big news for most of the planets, but the earth showed exactly the same trends, even with the atmosphere damping things. I wish I would have had the forsight to personally archive the report, but frankly, the global warming thing has lasted longer than I thought it would.
I am going to have to look into this super-weather thing some more. The mechanisms do not seem intuitive to me. Higher humidity and saturation of air in an ever warming system leads me to believe that we would have less severe weather and become more like Yoda's home world (pardon the analogy to a fictious planet).
Maybe I can come back and revive this old thread one more time another 6 months from now! This has probably been the most commented Design News article ever.
Sorry. I forgot. Why does increased evaporation from the oceans/etc, imply increased storm activity and increased storm strength. As you know, what goes up, must come down. Thus more rain, bigger, more often, more violent storms. I am a physicist, not a serious weather scientist. You could study up on the science and perhaps come back and make me look like a fool? Consider that encouragement to do just that. As a scientist at heart, I would as soon have you show me where I am wrong as accept that I know a little about the subject and let it go at that.
1. The use of the term thermodynamics here seems to decorate the discussion not direct it. 2. The thermo + nuclear reactions + electro plasma dynamics and gravity of the sun has resulted in it being a surprisingly stable long lived star. The awesome violence and turbulence results in a very steady driver for our greenhouse effect. 3. The long term drift of solar insolation and other astronomical effects (as our pole drift), have been considered extensively as part of the greenhouse studies. Were this subject freshly brought up you might be right to point this out. But at this point you should study the existing science and either add to it or at least discuss it, and not just hold forth with partly formed opinions on it. This confuses people who know less than you do about it. 4. You are right that if the earth were a dry flat sphere, we could expect the day night temperature differences to decrease. In fact the original calculation, presumed all else constant except CO2 warming, predicted (as I recall) about 3 times the heating that we observe. Water, mountains and seas, dramatically change this behavior though. And then it gets interesting. 5. A gradual warming of a couple of degrees does not have much effect. This is also not how you will observe the weather that is driven by this global warming. The weather itself will be more violent and distributed differently than now. We are changing the driving function (global heat input) gradually, and the weather is responding. The predictability of that response is a very difficult problem. The recent continent wide heat wave has already had a huge impact on our food supply. If this is driven further, to become more common, by additional global warming, feeding our kids may become much harder than today. 6. BTB. Without the greenhouse effect the earth would be a frigid ball of ice. Had we a lot more atmosphere and oceans, a runaway greenhouse effect would drive us to a Venus. I am not thrilled that we do not now have a very good idea of just what factors give us "just the right amount" of global warming, but the impact of screwing that up even by a small percentage may bring to mind your citing evolution. That which can survive does, that which cannot, dies. We choose our survival strategy. If we choose wrong, we and a whole lot of other life, will get a chance to test the limits of evolution.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.