lovely weather for the time of year

You gotta love this global warming malarky. I've never been so cold.  But here is what I don't understand: if man, and by man, I mean, if multinational companies are responsible, (and God knows, I HATE multi-national companies), for this planet warming up, who caused the ice age? Or was that a big fat lie created by Steven Spielberg so he could make a cartoon? When the ice melted thousands (was it??) of years ago, I don't think Bob in his cave selling a few woolly mammoth burgers would've caused enough CO2 to melt the then vast ice cap. Of course, America (and by America I mean multi-national companies) selling their CO2 quotas to third world countries doesn't help matters, but you have to wonder. Of course, we, (and by 'we' I mean 'us') have to wonder why they (and by they I  mean....oh, you get my drift) all of a sudden want to scare us into thinking we are killing the planet. What is in it for them? Cos lets face it, there is always something in it for them.