A $1180 grant for Owairaka District School is set to help students better understand green composting methods. The school has been given the grant from the Mazda Foundation. It will go toward four tumbleweed composters. More than $53,000 was donated to 27 charities across New Zealand in Mazda’s final round of funding for 2014. The company has dished out more than $200,000 in grants this year.