it is settled science, cant remember the wording but 98% or so of climate scientists agree it is real and happening. the "debate" is just big oil adding confusion. the cigarette corporations did the same thing for decades, and finally admitted they were wrong in late 90s.
again:
look at arctic sea ice: has it gotten smaller over the years or not? there are animated pictures online with corresponding years where you can see this.
go to glaciers and has the ice retreated?
http://en.wikipedia.org/wiki/Columbia_Icefield
ive visited this one just last year, they have markings on the ground where the ice was at what date.
look at world wide temperatures and where are the hottest years on record? 2014 was the hottest year on record and many of the hottest years on record have been last 2 decades if i recall.
its too bad alex jones thinks global warming is a conspiracy, but then again he thinks ALOT of things are conspiracies.
if we keep doing what we are doing, the earth will likely warm 5 to 7 degrees next 100 years, which scientists think will cause extinction for humans. theres methane trapped under ice in russia, methane which is way more polluting than Carbon dioxide, and they think if it releases into the atmosphere it will be enough to suffocate humans. the ocean has absorbed alot of the pollution and is acidifying. they are saying the earth will warm up, but they want to keep it max 2 degrees celcius which could sustain life. theres no way of reversing it yet. whats done is done.