Disparate thoughts

I have been sitting around with a blinking screen and an empty mind. Ideas flit back and forth but the trappings of language fails to give them any concrete expression. What should i scribble about? About global warming perhaps...it seems to cater to some issue of world importance. People will glance at it and say-"thats a concerned young lady." or maybe they will shrug it off-" nicked it from some environmental science book'. Maybe I should write a passionate account on the futility of life or any other contemporary philisophical problems plaguing our generation. For people like me there should be prose haiku. Twenty words and no more.