Inside New York City's plan to reduce the annual miles driven by its sanitation department.
Simplifying both the message and the process has worked wonders for San Francisco.
Ideas for helping cities better manage their enormous waste streams.
Behind the scenes of the city's aggressive campaign to monitor and educate people about exactly what should get thrown away.
The Indian city is setting itself up as a model for how struggling cities can better handle waste disposal.
Cities in developing countries will see waste management challenges skyrocket as they continue to grow.
More cities are following San Francisco’s lead on collecting compostable food waste