At a net-zero home in San Francisco, the house's green roof is more of a brown roof: a desert-like array of native and non-native succulents that require minimal irrigation. The soil area is maintained with motorcycle tires (including one from a Harley hog), which control erosion. Composting takes place here as well. Search “推荐在线博彩推荐网赌网站-推荐在线博彩推荐网赌网站官方版APP->>綱址（bet91.net)手动输入-推荐在线博彩推荐网赌网站-推荐在线博彩推荐网赌网站官方版APP->>綱址（bet91.net)手动输入” from This Net-Zero Residence Might Be the Greenest Home in San Francisco

Search “推荐在线博彩推荐网赌网站-推荐在线博彩推荐网赌网站官方版APP->>綱址（bet91.net)手动输入-推荐在线博彩推荐网赌网站-推荐在线博彩推荐网赌网站官方版APP->>綱址（bet91.net)手动输入”

At a net-zero home in San Francisco, the house's green roof is more of a brown roof: a desert-like array of native and non-native succulents that require minimal irrigation. The soil area is maintained with motorcycle tires (including one from a Harley hog), which control erosion. Composting takes place here as well.