Sentences with phrase «co2 over recent times»

Ozone depletion is natural and the increase in CO2 over recent times may also be predominantly of natural origin.

Not exact matches

First, warming precedes CO2 rises in the temp reconstructions over geological time; second, failure of the Hockey Stick to support «unprecedented recent warming»; third, the failure to find the model predicted (so - called) «hot spot.»

Then we are told that natural factors have masked AGW over a recent short time period during which there was no observed warming yet close to one - third of all human CO2 emissions since industrialization have occurred.