Rainstorm5 wrote:
One of the theoretical signs of Polar Shift (north and south poles switching magnetic polarity) is the sighting of Aurora Borealis in places where it isn't normally seen. This pretty light show in the sky has recently been noted in the skies above the middle of the U.S. Eastern seaboard. It's pretty for ordinary people to look at, but if you're into meterology, it's a scary thing to contemplate.
Pardon my ignorance, but why is a polar shift so terrible? I thought it took millions of years to complete, anyway.
The ironic thing about this global warming argument is that those who refute it actually give a more accurate label: climate change. The entire planet does not warm up at the same time. The increased heat in some areas disrupts weather patterns (creating the increased number and intensity of storms), makes some parts of the world colder (remember the snow in Jerusalem?), but the
cumulative pattern over hundreds of years is a higher temperature.
The greenhouse effect: visible light passes into the atmosphere. Some visible light is reflected by clouds, haze, and the surface. The surface absorbs visible light and emits thermal radiation in infrared. Greenhouse gases (CH4, H2O, CO2) absorb and re-emit infrared radiation, thereby heating the lower atmosphere. I should think it obvious that we are drastically increasing the amount of greenhouse gases in the atmosphere.
This seems easy enough for a patient and/or intelligent person to understand. However, graphs that span millions of years and encompass several fields of science are difficult to explain in a sound bite, so most people misunderstand the observation completely. But the owner of the Weather Channel? That's just absurd.