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Humanity has changed the global environment by a massive factor in a very short term; the kind of change that's never been seen on that scale or in that time period in anything short of cometary collision.
10/17/2011 03:48 PMPosted by AstraiNatural processes take A VERY LONG TIME. It's scale of time which is the important metric.
the sun is effectively a constant pressure, and despite causing variances in weather, does so in perfectly predictable patterns, which are known to not be related to the extremes in climate which we're seeing in recent years.
10/17/2011 03:48 PMPosted by AstraiAnd it's not that the earth hasn't faced hotter periods, either; but it's one of how well the earth will sustain our species in the new equilibrium. Which is not going to be very favourable to us at all.
And the new age for the extinction of 252.28 million years puts it within a mere few tens of thousands of years of the humongous lava outpourings that formed large deposits of volcanic rock known as the Siberian Traps. "We think the timing is consistent with the Siberian Traps eruptions being the major cause of the extinctions," Erwin says.
Volcanic activity has put out peanuts of CO2 comparatively, to the millions of years of carbon sequestering which exists in oil fields.
I don't think you understand the scale of the Deccan Traps. We're talking KILOMETERS thick lava. http://en.wikipedia.org/wiki/Deccan_traps
Check it out, it's short and definitely relates to the issue of CO2 and temperature rise. It's well noted, infact, that before the comet hit 65 Million years ago, ecosystem diversity was dropping. This climate change, from this massive vulcanism, is a good candidate for a contributing factor.If volcanic activity was an explanation for any significant amount of current CO2 levels, or growth of CO2 levels, there would be spikes in the numbers after every eruption. There isn't. CO2 increase is a smooth climb.
I'm not saying it's a current one, I'm saying that massive CO2 emissions have happened naturally in the past and life persisted. Mind you, there was a pretty serious extinction event with each...one of which was up to 75% (or more) of all life."Alarmists" are not in 'full blown retard mode,' people are alarmed because there is very good reason to -be- alarmed.
Al Gore is an example of an Alarmist. He is retard mode. Just as an example of what calibre I was referring to.
This is why I wish 'global warming' hadn't been used to describe it at first.
No kidding! Now conservative !@#$% think it's been discredited because of a misnomer. >:(Bitterly cold winters are not a contra-indication of climate change - in fact, the record breaking winters are another symptom -of- climate change, as the change in the climate is leading to disruptions in weather systems, causing increased extremes across the board.
I know. Climate change is happening, but the amount that is Anthropogenic leaves a wide margin for error.
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