Who is a skeptic?
Let us look at the data! What do you think has happened
since the Industrial Revolution when most of the combustion of fossil
fuels has occurred? Climatologists have been keeping records of the
composition of the air around the world for about 50 years now. One
of the longest recordings is from the Manua Loa Observatory Hawaii.
Why the roller coaster ride? Recall the carbon cycle had both photosynthesis and decay occurring, so in the Spring when plant life is growing the CO2 concentration falls, during the Fall and Winter the decay process dominates and the CO2 concentration increases.
Happy with that explanation?
If you answered no, give yourself a pat on the back. Remember that it is Winter
in Australia when it is Summer here ? So how can the CO2 concentration cycle? The Southern hemisphere is mostly water and so the summer/winter
activities in the northern hemisphere dominate.
