Hauv Fab Kis, 5,5 lab raug muag txhua xyoo, suav nrog ib lab tsob ntoo dag. Cov ntoo yas tsis tas yuav tsum tau saib xyuas, tab sis lawv qhov kev sib npaug ntawm ecological yog kev puas tsuaj: nws yuav siv 48,3 kg ntawm CO2 tiv thaiv 3,1 kg rau ib tsob ntoo ntuj. Yog li ntawd nws yog qhov zoo dua los xaiv ib tsob ntoo ntuj, lossis zoo dua ib tsob ntoo uas koj ua koj tus kheej.