A review was published in Nature, very scathing, essentially calling me incompetent, though they didn't use that word. I am putting a reply on my Web site in a few days, where I go through their arguments, paragraph by paragraph.

Just because there is a problem doesn't mean that we have to solve it, if the cure is going to be more expensive than the original ailment.

It seems incontrovertible to me that there is a global warming effect and that it is going to be serious, probably not in the amount of, say, six degrees warming, but it's likely that we'll get two to three degrees warming and that will be serious enough.

In the same way, we have to investigate the solar mechanism, but right now, the IPC claims that it's probably not the main cause.

I think it's great that we have organisations like Greenpeace. In a pluralistic society, we want to have people who point out all the problems that the Earth could encounter. But we need to understand that they are not presenting a full and rounded view.

I really try to say things as they basically are and it so happens that it is a good message that things are getting better, but there are still problems.