Let's geo-engineer our way out of global warming

There have already been calls for technology to be used to "solve" the global warming problem - there was a programme on the BBC a few months back where a number of suggestions were made. The problem is, like so much of what mankind does in this day and age, we do one thing without giving a thought for the wider consequences. Johann Hari discusses this, and points out the fatal (for us, ironically) flaws in following two of them, here.