The Guardian Unlimited -- the website for the popular UK newspaper -- published a set of essays on Saturday about what the world may look like in 2020. Topics range from urbanization to water use to China. The essays vary wildly in length, detail and quality, and none of them are provocative in a "oooh, I never thought about it *that* way" (at least to me). Nonetheless, they represent solid mainstream stories of what the next 15 or so years may hold. Our job is to make sure that the good ones happen, and the bad ones don't.