Will global warming increase the temperature of the troposphere,or only at sea level?(less convectional rains)?

I might be a little long winded, but you question deserves a thorough response, so bare with me. Michael had a great response, and is pretty much right on from what I can tell. The atmosphere is a fluid, meaning that the air moves freely throughout it. A parcel of air that is at the surface now will eventually makes its way around the world, and through all the altitudes. By looking at the earth's troposphere as a fluid we can relate it to a pot of water that we place on the stove. We heat the water from the bottom, and the warm water rises and cools, however it is displace by colder water from the top sinking, this convectional heating continues until eventually the entire pot of water has warmed. Of course, this is a massively simplified version of the atmosphere on a much smaller scale. In fact, when you heat a pot of water you are changing its temperature by over 100 degrees Fahrenheit. The warming and cooling of the earth's mean temperature is on a much smaller scale. Significant warming on a global scale is only 5-10 degrees warmer than the current mean. One of the many ways that we measure the results of global warming is by looking at the melting of the polar ice caps, but many people zero in on this and do not look at the melting of other ice caps on the planet. The Patagonia ice cap in Argentina as well as others in tropical environments have also retreated due to the earth's warming. Most of the green house gases have been emitted in the Ferrell Cell (US and China), but we are seeing the results of this throughout other cells. This shows that these emissions are encircling the entire world. Looking at the temperatures vertically (through the column of air) we can see the effects of warming. For instance, large metropolitan areas tend so see warmer and wetter climates due to the abundance of pollution that is in the air. More pollution mean more CCN (cloud condensation nuclei) that allow clouds to form. This is also why acid rain is more of a problem in populated areas like NYC that it is for more rural areas like northern Africa. Of course this doesn't take into consideration effects of being downstream of a large city, when clouds can form from the pollution then move over another area and deposit the contaminates. Essentially what I am trying to say through all of this is that warming at the surface will affect temperatures throughout the entire column of air because the earth's atmosphere spreads out any temperature changes that occur at the surface. As for the result from significant global warming. There is not a whole lot a "good" that can come from it. When ice caps melt, all that water that has been frozen has to spread out somewhere, and if all of the ice caps melt we are looking at a serious rise in sea level. This means that any coastal areas will likely flood and become inhabitable. If you look at population densities in the US you will see that most of our population is in coastal areas. These people will have to migrate inland, and the government will probably have to help pay for it. The melting of these ice caps will also spell doom for most of the wildlife that depends on it. Polar bears are the best example of this, and will likely become extinct as will numerous others. A human migration will destroy wildlife populations as will the melting of the ice caps, and this will create complications for human food sources. As for this making the weather patterns less sporadic, the opposite will be true as the atmosphere tries to cope with a warmer climate. A warmer climate means that ocean temperatures will rise, which will allow for the formation of stronger and more frequent tropical systems. Hopefully this answered all of you questions, although I am sure it might have created more questions than it answered. The earth goes through natural warming and cooling periods, and looking at ice core samples, the earth is currently undergoing a warming period. The question is, are humans causing it, or is this just a natural process. The answer to that would be both. Humans are causing the earth to warm faster than it would naturally, and the repercussions of this could be devastating to the environment and the human population. Feel free to message me if you have any more of these questions.