Xue Sheng
All weight is underside
Ok so again ill ask a simple question. If we are causing this then how did the earth warm up on its own before people.
according to scientists we are still in the ice age that began 2.6 million years ago at the start of the Pleistocene epoch, because the Greenland and Antarctic ice sheets still exist. So by your theroy up until the 1800's when we discovered coal and oil how during the prior 2.5 million plus years did the earth warm up on its own to melt the rest of the ice that covered much of north america. Also why did it stop warming up on its own and now only during the last 200 years did it start warming again at our hand?
Also there were 4 prior ice ages to this one so how did we cool down and heat up for each of the prior ones with out mans help?
Ice ages can also be triggered by multiple things some of those being absolutely out of our control such as the planets orbital path, axis tilt, volcanic activity or a rather large impact too. I once took a class many years ago that discussed humidity levels in association with Ice ages as well. Planet heats up, more humidity in the air, more humidity more solar radiation is deflected back into space, planet starts to cool down however this is not a quick process. It is interesting stuff to study but the ramifications of it can be rather deadly to the inhabitants of the planet. Frankly I do not want to be in the way of a 2 mile thick glacier or a flood from raising sea level or the second coming of the Younger Dryas. All really cool to study but I would not want to be in the way of one.
I believe that technically, based on climatological date, we are supposed to be in a cooling trend..... but we are not... it appears to be getting warmer which is not part of the predicted cycle based on weather history. And even if this is the end of an Ice Age it is happening rather rapidly based on the historical data. So even though they may say were in an Ice age, glacier melt and the breaking up of ice in Antarctica say we are not, unless it is the dramatic and extremely rapid (based on geological time) end of one and we are talking supersonic quick.
There are multiple reasons for warming and cooling and we, meaning human beings, could now be or have been one of those since we showed up. Just read an interesting article on what ended the Mayans and it could be their farming activities had dire consequences on an already existing draught. We do appear to have a major effect on the planet as a species more so than any other on the planet.
The little ice age that occurred during recent human times (started in the 13th century) that appears it could have been the result of a few things in combination or possibly just one, things such as cyclical lows in solar radiation, changes in thermohayalene current (that one is for elder), increased volcanic activity, and even the possibility of Lower CO2 atmosphere due to decreased numbers in human populations (I doubt the last one could have done it by itself but in combination with one of some of the others possibly). And if CO2 is a contributor (and it is) then increases of it can and will cause heating and all sorts of nasty things can occur once things get warm enough, if you happen to be living on the planet when it happens.
Another thing to think about, if another professor of mine was right, there are a few inactive volcanos under the Antarctic ice sheet and as the ice melts the earthÂ’s crust rebounds they could become active and a lot of ash in the atmosphere, amongst other things a volcano releases, is not a good thing if it is all of then and if I am remembering correctly it is somewhere between 6 to 8
My only point to all this is that we really need to stop arguing and calling global warming fake (see glacial melt and the breaking up of Antarctic ice sheets) and figure out if we can do anything about itÂ… or if we are just along for the ride. If we can do anything about we best get busy before it is too late, if we canÂ’t we better figure out what we can do to survive it and move to higher groundÂ…. Or possibly by all the property in Southern Georgia that borders Florida and let your ancestors become wealthy off of all the beach front property they will one day have to sell.
And there are a TON of things that come along with Global warming that we are not even talking about here that are part of the whole global warming package, many of those not good for us.