Green roofs will benefit Denver, but they shouldn’t be mandated

The best thing that can be said for a proposed “green roofs” ballot initiative in Denver is that it would address problems of genuine concern. Big cities do in fact function as “urban heat islands” that boost temperatures (especially at night) by several degrees compared to rural areas and thus require more energy and water use.

And because of Denver’s relatively dry and sunny climate, its heat island effect is even more pronounced than in most cities. One climate advocacy group ranked Denver a few years ago as the nation’s third most intense heat island.

Read more at The Denver Post.