From previous posts Martin, it is clear that you are a 'non-believer' when it comes to Global Warming, and your selection of links (except the last one which said it didn't exist!) and their negativity obviously support your view. Doubtless someone on the forum will nibbler at the bait and come up with other articles which support the idea of Global Warming.
For myself, I am content to do my best to prevent doing anything harmful happening to the environment insofar as I have the control over my own actions. That can only be good.
Like many other issues, Global Warming has become heavily politicised and once things get to that stage, I tend to switch off (energy saving!) and leave it to those who like to fight the political battle rather than the issue.
Good luck with your aim of starting a discussion. Bob.
Yesterday today was tomorrow. Don't dilly dally!