Zheeezzz. Lazs:
"Scientists are being denied money for not jumping on the "man made global warming" band wagon"
Really? Well, maybe it's cos they are being offered money by fossil-fuel related companies for debating, - something I recall you seeing nothing wrong with.
As for the dictionary, you do not have to tell a direct lie to be dishonest, but as for Holden's graph, I want to belive he didn't see the year 1900 at it's end. (It actually slipped my eyes when I glanced the first time over the reply)
And for volcanoes, they categorize as something that is not in our power to affect. But greenhouse gas emissions are, - and most of those emitted are in very little efficiency. And for some odd reasons, that varies a lot between countries, without directly affecting people's lives....
Finally, DDT, - quick answer.
Use enough of it, and not only is the end effect unforseable, - just safely bad. And,,,,there is no UNDO button on that one. From the short lived useage, every human on the planet has some DDT in the body. Some fatties that go on a proper diet may have some problems with it being released (from the fat) into the circulation, but it only came that far, thank the hippies and libs.
We also didn't use enough to screw up the world of insects, which is a nasty pain in the butt when it goes of the norm.
(BTW, I know DDT a bit, from using it on sheep louse years ago....)