Carbon dioxide (CO2) ua rau feem ntau ntawm cov pa hluav taws xob hauv tsev cog khoom los ntawm kev lag luam, tab sis tsawg dua ntawm methane (CH4) thiab nitrous oxide (N2O) kuj raug tso tawm. Cov roj no raug tso tawm thaum lub sij hawm combustion ntawm fossil fuels, xws li thee, roj, thiab natural gas, los tsim hluav taws xob.
Cov pa hluav taws xob hauv tsev cog khoom feem ntau tuaj qhov twg?
Hauv Tebchaws Meskas, feem ntau ntawm cov emissions ntawm tib neeg-ua rau (anthropogenic) tsev cog khoom gases (GHG) feem ntau yog los ntawm burning fossil fuels-coal, natural gas, and petroleum -rau siv zog.
txhais li cas los ntawm kev nce ntawm cov pa hluav taws xob hauv tsev cog khoom?
James Butler, tus thawj coj ntawm NOAA Lub Tuam Txhab Saib Xyuas Kev Tshawb Fawb Ntiaj Teb tau hais tias
… “Tsis muaj ib puag ncig nws - hlawv cov pob txha pob txha hloov pauv ntawm peb lub ntiaj teb lub neej yav tom ntej.
Tam sim no lub tsev cog khoom roj emissions yog dab tsi?
Nyob rau xyoo 2019, Teb Chaws Asmeskas lub tsev cog khoom tso pa tawm tag nrho 6,558 lab metric tons ntawm carbon dioxide sib npaug, lossis 5,769 lab metric tons ntawm carbon dioxide sib npaug tom qab suav nyiaj sequestration los ntawm thaj av sector.
Peb qhov chaw sab saum toj ntawm cov pa hluav taws xob hauv tsev cog khoom yog dab tsi?
Ntiaj teb no, thawj qhov chaw ntawm lub tsev cog khoom tso pa tawm yog hluav taws xob thiab cua sov(31%), kev ua liaj ua teb (11%), kev thauj mus los (15%),hav zoov (6%) thiab kev tsim khoom (12%). Kev tsim hluav taws xob ntawm txhua hom suav rau 72 feem pua ntawm tag nrho cov emissions.
