PRI's The World Edit this Published by PRI's The World New lawn 'mooers' keep the grass trimmed in East London's parks Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/393497/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend The town council in Havering, England, has turned to cows instead of lawnmowers to keep parks and other green spaces neat and trim. Locals say traditional grazing promotes biodiversity and could save half a million dollars over 10 years.