The 1970s was the coldest decade in hundreds of years ........If man made CO2 does have an impact , it was to keep the world from slippng into another ice age. {thats a good thing} I remember living in Florida in 1982 when a record cold temp killed off millions of 100 plus year old trees ......Just how much colder might it be in America without Man Made Co2 warming the world? :wink: {I like artifical warm much more then natural cold, even if the world is naturally cooling.........Kinda like a comet natually hitting the earth and wiping out the planet....A Five mile wide comet hitting the earth is quite a natuaral thing .....I want man made intervention. :wink: