For anyone who was still doubting, global warming is happening.

Dear sir,

I don’t think anybody at this point can refute that global warming is occurring. Were still in a warming period post the last ice age. But the real question is the degree to which humans are responsible for any change – even the dramatic ones outlined in the BBC article. Over the last 4.5 billion years there have been many cooling and warming cycles, and according to geological findings some very rapid indeed. Obviously, the amount of pollutants we inject into the earth eco system is not healthy. But global warming and global pollution are two separate issues with possible, not proven overlap.