In 1926, ntawm Grand Canyon Village ntawm Sab Qab Teb Rim, thawj qhov chaw kho dej khib nyiab hauv Asmeskas tau tsim tshwj xeeb rau cov dej rov siv tau pib muab dej rau kev tsim hluav taws xob, Santa Fe Railroad chav locomotives, thiab tso zis tso quav.
Thaum twg cov dej rov siv dua thawj zaug?
In 1993, New South Wales dhau los ntawm Pawg Neeg Saib Xyuas Kev Siv Dej Siv Hluav Taws Xob, tsim NSW Cov Lus Qhia rau Kev Siv Dej Hauv Nroog thiab Chaw Nyob (tam sim no hloov dua tshiab).
Leej twg tsim cov dej rov qab?
Peter Brewin tau tsim lub Da Dej Recycling Shower, tus da dej hauv eco-friendly uas muaj peev xwm pab kev txuag dej thoob ntiaj teb.
dej rov qab los qhov twg?
Cov dej rov qab yog tsim tawm ntawm lub chaw kho dej khib nyiab Ntawm cov chaw kho mob, cov dej khib nyiab hauv tsev tau sau los ntawm tsev neeg, tsev kawm, chaw ua haujlwm, tsev kho mob, thiab chaw lag luam thiab chaw lag luam, thiab tom qab ntawd tau dhau los ua ntau theem ntawm kev kho mob los npaj cov dej rov qab siv lossis tso tawm mus rau ib puag ncig.
Puas yog cov dej rov qab zoo rau ib puag ncig?
Ntxiv rau kev muab cov dej tso siab tau, tswj hwm hauv zos, dej rov ua dua tshiab cov txiaj ntsig zoo ib puag ncigLos ntawm kev muab cov dej ntxiv, kev siv dej tuaj yeem pab peb nrhiav txoj hauv kev Txo cov dej ntws los ntawm cov ecosystems rhiab heev.
