Jawapan

2016-03-14T18:58:35+08:00
True because burning fossil fuels produces carbon
2016-03-14T20:40:00+08:00
 Yes true. 
However CO2 logarithmically diminishes as concentrations rise, Co2 has done practically all the warming it can do, a doubling to 800ppm will probably only warm our planet another0.01degree C.