Foxton
Banned
Re: 2012 Presidential Election 5: Election Day Countdown
And much like the big bang, it's a failing in the language to describe what is really happening. But climate change doesn't have the same impact as GLOBAL WARMING! Dun dun DUN!
The only temperatures that come close to levels before 1990 were in about 1000 during the medieval warm period. That period is also around 300 years long. Past 1990 there's nothing that comes close in the past 2000 years and no where does it increase at sharply.So they are saying there were enough people and or enough volcanic activity to impact global temperatures in the 1700's? I'm viewing on phone so I may be challenged scale wise.
I have no doubt the earth is warming, I am not sure the graphs I just saw prove it is only people causing the change.
As a side note, I did read the articles saying the Antarctic icecap is growing and got a chuckle out of the scientists comments regarding that being perfectly understandable. If the arctic ice reduction is man made global warming and Antarctic ice increase is also global warming does that mean hot air rises 'up' to the northern hemisphere?
;-)
And much like the big bang, it's a failing in the language to describe what is really happening. But climate change doesn't have the same impact as GLOBAL WARMING! Dun dun DUN!
Oh noes! No one has ever thought of these things before! Or figured out ways to account for what would such things would do to the environment. If any of those things were actually causing something significant, it would be easily shown and accounted for.There are a variety of astronomic phenomena that could affect the mean global temperature on the earth's surface sufficient to cause global warming or global cooling. If the tilt of the earth's axis changed slightly, a bit more or a bit less of the earth's surface would be exposed at the perigee and abogee of the orbit (we do know from geologic records that the direction of the earth's magnetic field flips every now and then on the geologic time scale). If the sun's rotation around its own axis changed, that could affect how much energy it emits and how much subsequently reaches earth (this one is a bit far-fetched). The elliptical shape of the earth's orbit fluctuates between slightly thinner to slightly rounder on the geologic time scale because of the interaction of the gravitational influence of the other planets, that can change how much energy reaches earth from the sun over geologic time spans.
If any of these or other natural, currently ill-understood, phenomena underly the data we see, can we afford to keep arguing about what caused it to the extent that we fail to take appropriate precautions on how to deal with the consequences?