Atmospheric CO2 hasn't increased for 150 years In contradiction
to perceived wisdom, the airborne fraction of carbon dioxide
hasn't increased during the last five decades, or, indeed, for
the last 150 years, claims new research The findings suggest
that estimates of mankind's impact on the environment are more
than 80 percent higher than they should be. To assess whether
atmospheric CO2 levels are increasing, Wolfgang Knorr of the
Department of Earth Sciences at the University of Bristol has
re-analyzed available atmospheric carbon dioxide and emissions
data since 1850, reports Science Daily. Says Knorr: "Several
recent studies have highlighted the possibility that the oceans
and terrestrial ecosystems have started loosing part of their
ability to sequester a large proportion of the anthropogenic CO2
emissions. This is an important claim, because so far only about
40 percent of those emissions have stayed in the atmosphere,
which has prevented additional climate change. "[My] study re-
examines the available a