In these recent unseasonably hot days, have you noticed the heat radiating off blacktop? Black asphalt traps heat and releases it back into our cities. “But who said streets had to be black?” asked Ben Schiller, staff writer at Co.Exist. They pointed to Lawrence Berkeley Lab’s showcase of alternative paving surfaces to demonstrate how a parking lot alone can measure 40 degrees cooler if it’s lighter in color. In Los Angeles, you can visit TreePeople’s Center for Communitiy Forestry at our Coldwater Canyon Park headquarters to see this effect in action.… Read more >>
Posts Tagged / cistern
Is Los Angeles a desert? Our city gets about 15 inches of rainfall annually, slightly more precipitation than, say, Missoula, Montana (though we have fewer days per year that are considered “wet”). Did you know this is enough to serve a fairly large population and irrigate its urban greenery?
But every time it rains an inch in the city of L.A., 3.8 billion gallons of runoff are sent to sea, sweeping trash, toxins, and bacteria into waterways and polluting our beaches and ocean.… Read more >>
Park operations director Jim Hardie calls it the “grasscrete circle”—also known as the TreePeople cistern, a 216,000-gallon underground storage tank, where we save rainwater filtered and collected from rooftops and the Parking Grove. The stored water irrigates TreePeople’s grounds in the warm months. For the past four years, the circle has been planted with wildflowers, which look gorgeous but require regular weeding. Jim is excited about a low-maintenance alternative called purple needlegrass or Stipa pulchra or Nassala pulchra—the official state grass of California!… Read more >>