I think the strength of the arguments here is important in showing how highly this issue can affect people. As filmmakers, our goal is to affect people. The simple act of editing in and of itself is purely manipulative, how we use that tool is what is at stake in this thread. Journalism is documentary with a stress on apparent fairness to all sides of an issue.
As a narrative filmmaker who has to sell to an audience, I find that more than 2 sides to an issue becomes cluttered storytelling. Although the world is in colors and grays, we humans don't want to be presented data in that fashion, we want a or b, x or y, this or that. The media therefore gives us what will get them eyeballs which in turn gets them advertising dollars to pay the FCC for their license and buy helicopter camera mounts to get cool shots of buildings burning and the aftermath of terrible catastrophes...which gets more eyeballs...lather rinse repeat.
Here is an article on the media's coverage of scientific issues:
http://cjrarchives.org/issues/2004/6/mooney-science.asp
As for the topical debates in this thread, these come up because the media and other interested parties have brought them to our attention, without their help, we would almost certainly have no clue of the implications or even existance of any of these topics unless we or someone we know is directly involved with them.
My personal bias (as we all speak from the point of a given bias). Big oil spends tons of money on scientists to make claims to balk at the standard scientific rhetoric of hypothesize and test and peer review and replication of results. I don't believe humans are even mostly responsible for global warming...although we certainly play a part as do farting cows and seismic activities in the ocean opening fissures releasing heated gas (of course all three play differently sized parts in the process), U just think that our orbit and relationship to the sun has more to do with our temperature than anything we can produce...remember the ice ages and the worldwide tropics?
Me neither, but I've read about them. That being said, if the media gets legislation passed to reduce pollution with this rhetoric, I say I'm personally responsible for tons of ozone depletions as I was a teen in the 80's with big hair! Make the car manufacturers and industry make our air breathable again.
JFK was assassinated by one guy
The moon landings were real
There is a plesiosaur family alive and well in Loch Ness
Aliens took the towers for anal probing.