Yeah, global warming is 'natural'
Levels of CO2 are now 27% percent higher than at any point in the past 650,000 years, according to research into Antarctic ice cores.
The study, which provides more evidence of human interference in the climate system, pushes back our greenhouse gas record by 210,000 years and now encompasses four glacial cycles.
The research, published today in the journal Science, appears in the run-up to a key conference on global warming which opens in Montreal on Monday.
The evidence comes from the world's deepest ice core, drilled at a site called Dome Concordia (Dome C) in East Antarctica.
....
Analysis of CO2 in tiny bubbles in the ancient ice showed that at no point during this time frame did levels get anywhere close to today's CO2 concentrations of around 380 parts per million.
from: http://abc.net.au/science/news/stories/s1516607.htm
Just more data for some here to ignore