First and most worrisome issue, UV (Ultraviolet)

Back in the day, before global warming stole the headlines, people were worried about the ozone layer. CFC's had been spewed into the atmosphere by leaky air conditioning units (home and car), spray cans that used it as a nice chemically neutral propellant for lovely modern conveniences like hair spray, cheese whiz, and anything else they could possibly push out a nozzle.

Realistically that has not changed a bit. The ozone layer is still depleting. CFC's take time to make it up there, and they figured that we would not peak in ozone depletion until 2012. After that point, it would take over 50 years for the damage to start diminishing. So, all told, we are looking at 53 years of peak ozone depletion in our future, before it even begins to lower.

Now I will explain a few simple things about ultraviolet light/radiation. First, it carries with it far more raw energy than visible or infrared light. The comparison is, if a lumen of infrared were to equal a AA battery in energy the same amount of ultraviolet would equal a car battery. So, a little bit of ultraviolet goes a long way.

So, now when I talk about ozone depletion letting say 15% more ultraviolet get to the ground you should understand that the sun would have to get a LOT brighter in the visible light range to equal that 15%. Now, you have to understand that when light hits something it gets either reflected, or absorbed. Ultraviolet has a third available function as anyone who has seen florescent art knows, it can have its frequency changed into visible or other frequencies. So, just like any other energy, it doesn't just vanish it gets changed into infrared after a few shifts. So, you get heat.

Now, anyone from the coasts know that you can still get a sunburn on a cloudy or foggy day since the UV just cuts right through water vapor. It also penetrates the first few feet of water, heating our lakes, oceans, and ice sheets deeper than the other light hitting it.

Now, you know why the ice sheets have been going away faster than scientists can account for it. The biggest holes in the ozone layer are at the poles. This is one reason why the poles have shown more heating than the equator. There are other reasons, but this is a major one.

If you apply this to the equator, you see why the land temperature has stayed pretty stable, yet the oceans are warming alarmingly.

So, since I don't want to put anyone to sleep with excessive information I will leave this particular subject and move on to the next. I might refer back to here since everything is tied together in this world, but now you have the basic UV lowdown.