“A CSIRO atmospheric scientist, Paul Fraser, said the world was now on track to pass the 400 parts per million level for CO2 emissions in under five years.’
The Sydney Morning Herald reports:
GREENHOUSE gases have risen to their highest level since modern humans evolved, and Australian temperatures are now about a degree warmer than they were a century ago, a major review by the CSIRO and the Bureau of Meteorology has found.
The national climate report, to be released today, said Australia’s current climate ”cannot be explained by natural variability alone” and that emissions resulting from human activity were playing an increasingly direct role in shaping temperatures.
Australian researchers were able to identify the ”fingerprint” of the carbon dioxide particles in the atmosphere, by testing the isotopes in CO2 particles, and confirm that the increase came from fossil fuels burnt in power stations and cars…