[pasala (OP)]

Ah I see. You are just trolling then.

Mr The spoon,
I am sure and it appears that you have excellent knowledge and for that i would like to congratulate you. 

Ok, let me tell you, you have used only one word, but our teachers used several words at the early school days.  When the teacher lighted a candle and closed it by glass and when the fire put off, he started explaining how things need oxygen to burn.  Immediately, i asked the teacher, why don't you think a glass is coming in between and obstructing burning of things.  Teacher explained, if you measure the gases inside the glass, you will get the answer.  For that, i argued, once again there is fire even after you close the glass and therefore other gases have increased. I need not tell you, what happens thereafter.

In the case of global warming, leaving other things, we are switching off lights to reduce global warming.  Is this true, lighting increases global warming.  Here we are not producing any electrons, we are drawing them from the open area, making them to flow to far away place, using them in lighting.  We are drawing them from open area and again leaving them into open area.