A truckload of 20,000 black plastic balls were released into the Los Angeles reservoir this week. That’s the last shipment of a total of 96 million balls now floating on the water. It’s a $34.5 million project designed to protect the city’s precious water supply.
The black, plastic shade balls — costing 36 cents each — protect the water in the 175-acre reservoir against dust and rain, birds and wildlife, and chemical reactions caused by the sun. It is also expected to keep about 300 million gallons of water from evaporating each year.
L.A. has been doing this for years in smaller reservoirs, but they've never had this many balls before. Let’s hope it works, as California is in the midst of an epic drought. If it doesn’t, they’ll have no water and the world’s largest ball pit to play in. -via Time