@hamburger,
Walter, please explain what specific data I posted about growth in CO2 density in the atmosphere and fluctuations in the average global temperature you think are invalid. Then please explain why you disagree and what specific data you have access to that you think is valid.
Alleged ocean ice cracking up or melting in the Arctic does not reveal current global annual average temperature changes. It only reveals a specific region's current ocean temperature increases.
The data I posted says among other things:
1. 20,000 years ago the average annual global temperature was about 56.0 °F.
2. Currently, the average annual global temperature is about 57.7 °F.
3. 20,000 years ago the CO2 density in the earth's atmosphere was 180 ppm.
4. Currently, the CO2 density in the earth's atmosphere is 386 ppm.
5. Over that period, the average annual global temperature has increased
irratically from 56.o °F 20,000 years ago to 57.7 °F currently--a 3.04% increase.
6. Over that period, the CO2 density in the earth's atmosphere has increased
steadily from 180 ppm 20,000 years ago to 386 ppm currently--a 14.44% increase.
By the way, in aviation for the purposes of calibrating aircraft airspeed, altitutde, and verticle speed instrument guages, the standard global sea level temperature was determined to be 59.0 °F, with differences of actual temperature variations on the ground and at altitude used to calibrate instruments both on the ground and at altitude. By that standard the earth's actual current average global temperature is cool, not hot nor even warm.