Originally posted by astmonster
Human co2 is only 0.004% of all co2.

30% of residual atmospheric concentrations are from anthropogenic sources. Claims to the contrary simply discredit us sceptics ...

Global warming has nothing to do with man.

Maybe not. But the science says it is. Ad there are other anthropogenic impact on climate which are incontrovertible
Look at history.......900AD to 1200AD they was little or no winter. The vikings were able to raid, not having to gather food.

If they didn't need food, the vikings wouldn't have need to raid .... there is evidence summers were warmer though.

Grapes were grown in northern england.

As they can be today

Greenland was GREEN.

As much as it is today. Beachcoma has explained the origin of the name.