please cite the scientific evidence to back your claim.
2006-11-06 18:19:25 · 2 answers · asked by Brendan G 4 in Environment
The concentration of carbon dioxide gas in the atmosphere has increased from 290 parts per million to 380 part per million in the last 100 years. It is expect to double in the next fifty years.
Methane is a another greenhouse gas on the rise in its concentration in the atmosphere. It has increased from .8 ppm to 1.7 ppm in the last 100 years.
Some of the reasons that [C02] has risen are: buring of fossil fuels (coal, oil and natural gas), clearing forest to creat farmland, and burning firewood for heat and cooking.
Some of the reasons the [CH4] (methane) has risen are: rice cultivation, cattle production, microbial activity in dumps, the burning of tropical forests and grasslands, and release during fossil fuel productions.
2006-11-06 18:42:39 · answer #1 · answered by magical_quidditch 1 · 1⤊ 0⤋
no doubt about it pal. look at all the irrefutable evidence of the damage our car fumes, farming practises and industrial pollutants are causeing.
2006-11-06 18:24:45 · answer #2 · answered by wats_happennin_bro 2 · 0⤊ 0⤋