We are Exiting an Ice Age: Global Warming Explained in 4 Minutes
We started exiting a cyclical Ice Age 140 years ago, so the planet is warming as part of a natural process
Jørgen Peder Steffensen is a professor of ice core related research at the Centre for Ice and Climate at the Niels Bohr Institute at the University of Copenhagen.
Using ice core data from the EastGrip Greenland Ice Core Project, his team has determined that we exited the last ice age about 140 years ago, so the planet is going to warm up as part of it’s normal heating and cooling 10,000 year cycles.
Caveat is that there is no way to really determine the effect of human activity on normal cyclical global warming given the magnitude of the cycle and ABRUPT ups and downs of the temperature changes during a cycle, which is also the norm.
For example:
High-Resolution Greenland Ice Core Data Show Abrupt Climate Change Happens in Few Years
Love this!
There is some good discussion here whether man-made CO2 as the cause of global warming or not.
I would lean towards real data derived from real physical experiments with real materials vs. defective synthetic climate models which have become so prevalent in academia.
I believe that the ice cores represent a reliable source of legitimate data about heating and cooling cycles and CO2 levels throughout history. The scientists involved appear to be competant and conservative as well.