Whakakīhia te rerenga e whai ake nei: I te tau 2014, neke atu i te 75% o nga whenua ahuwhenua o Kanata Prairies i whakamahi i te "mahi tiaki" me te neke atu i te 50% i whakamahi i te kore mahi. E rua tekau mā rima ngā whenua i oati ki te whakamahi i te mahi i te Hui-tanguru 2015
Ko ngā hui āhuarangi o Paris. I California maha Resource Conservation Districts (RCDs) tautoko hononga rohe ki te whakawhanake me te whakatinana ahuwhenua waro, I roto i te 2015 te tari e whakahaere California o waro-whakawhitinga nama tīmata te whakawhiwhinga nama ki ngā kaiahuwhenua e compost mara whangai. I te tau 2016 i mahi tahi a Chevrolet me te Tari Ahuwhenua o Amerika (USDA) ki te hoko 40,000 nama waro mai i nga kaiahuwhenua i runga i te 11,000 ekara kore. Ko te whakawhitinga e rite ana ki te tango i nga waka 5,000 mai i te huarahi, a, ko te mea nui rawa atu i roto i te US. I te tau 2017, he maha nga kawanatanga o Amerika i whakatinana i nga ture hei tautoko i te ahuwhenua waro me te hauora o te oneone.