While global warming is no laughing matter, it sometimes helps one’s outlook in dealing with serious, earth-shaking issues (literally) to maintain a sense of humor and a cheerful heart.  Indeed, to press on in the face of a world hurtling headlong towards the ‘tipping points’ of no return in heating the planet, it pays to stop and smile at the roses once in a while.In that spirit, here’s a video ‘lighter side’ to George Bush on Global Warming…