The reason deniers exist generally is because there's a problem they don't want to face. Another, equally fatal approach to any problem is to attempt to <i>jump</i> to a solution. The correct approach is to try to understand the problem better which requires thinking -- in societal terms, it means <i>research</i>.<p>So, by all means, let's tell off the deniers, expand solar and wind, reduce coal, even make lifestyle gestures -- but put the bulk of effort into researching safe nuclear power and researching geo-engineering. (Unless I'm misreading the situation, there seem to be taboos around both at present.)