Planters

Paris has turned to open-air street urinals, called "uritrottoirs" and "pavement urinals," which are similar to planters with an opening in the front and a floral display on top. The receptacles contain straw, which transforms into compost for later use in parks and gardens.

Mennad has some planters in his garden.

"The best time to plant a tree is 20 years ago," the enthusiastic planters were told by Stavros Lambrinidis, ambassador of the European Union (EU) to the United States, as they gathered in a sunny corner of Washington's Rock Creek Park. "The second best time is now."

Planters plant plants.

He says by fixing nitrogen and using green fertilizers, such as leaves from the trees, planters can increase household food security.