Greenhouse gas emissions from electricity generation

Natural gas is less than half coal and 100 times more than hydro.

https://www.blogger.com/blogger.g?blogID=3001029431697074692#editor/target=post;postID=6150621338898046979       Lifecycle greenhouse gas emissions by electricity source.
Technology	Description	50th percentile (g CO 2/kWhe)
Hydroelectric	reservoir	4
Wind	onshore	12
Nuclear	various generation II reactor types	16
Biomass	various	18
Solar thermal	parabolic trough	22
Geothermal	hot dry rock	45
Solar PV	Polycrystaline silicon	46
Natural gas	various combined cycle turbines without scrubbing	469
Coal	various generator types without scrubbing	1001