I am appalled at the state of discord in the field of climate science. There is no observational evidence that the addition of anthropogenic greenhouse gas emissions have caused any temperature perturbations in the atmosphere.
Quotes about anthropogenic (4 Quotes)
Whether the ice caps melt, or expand - whatever happens - the anthropogenic global warming theorists claim it confirms their theory. A perfect example of a pseudo-science like astrology.
(On the anthropogenic increase in atmospheric carbon dioxide concentration) The essential fact which emerges ... is that the three smallest and most active reservoirs (of carbon in the global carbon cycle), the atmosphere, the plants and the soil, are all of roughly the same size. This means that large human disturbance of any one of these reservoirs will have large effects on all three. We cannot hope either to understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.
I believe the anthropogenic effect for climate change is still only one of the hypotheses to explain the variability of climate.