Both Ludwig & Safety are absolutely correct.
Climate Change has always been with us it's just that some have found a way to profit from it. Same as the ozone affair of a few years back. Remember when we were all going to die of skin cancer because of areosol cans and air conditioning refrigerant? What happened to that? I'll tell you. The money was made, Chemical companies made their billions by reformulating refrigerants/propellants and the consumer paid for it.
Who remembers the "Coming New Ice Age" hysteria of the early 70s? Oooops, didn't happen, sorry.
Now it's the 'Global Warming' scare. Look around and see who's profiting from it. Like they say, "follow the money".
Another view would be in the words of Bertram Russel who said, "A scared populous is an easily controlled populous". Does that make you think? The cold war ended and for years it served as something to be afraid of. Since it ended there seems to always be something that's 'gonna get you' if you don't change your ways.
We can't and aren't changing the climate. We're a flea on an elephant's back and the planet has been in a constant state of flux forever and will continue long after we're gone. Just my opinioins.
Tom