Energy Use

Old buildings could be to blame for much of a city's energy waste. That's the case in New York, where officials are putting together a plan to retrofit older buildings to be less wasteful.

This article showcases six new types of streetlights that reduce energy use in very different ways.

The city of Vancouver is hoping to reduce its energy use and carbon emissions by hiring a goat to maintain the grounds at city hall. Though the mayor wants to expand the goat program to schools and parks, some have reservations.