# Name one green house gas and its possible source of production on a large scale. What are the harmfu

Name one green house gas and its possible source of production on a large scale. What are the harmfu

$CO_2$ and methane. $CO_2$ levels are increasing due to burning of fossil fuel leading to global warming.
Effects of global warming
(i)  Deleterious changes in the environment and resulting in odd climatic changes (e.g. El Nino effect).
(ii)  Increased melting of polar ice caps as well as of other places like the Himalayan snow caps.
(iii) Rise in sea level that can submerge many coastal areas.
edited Jul 13, 2017 by pady_1