Dude, the planet was tropical, had 40 hour long days, and Mosquitos could be measured in feet. This is when the primary element in the atmosphere was Oxygen, not Nitrogen like it is now.
The Earth's Climate has changed radically in it's geologic past.
The Earth's surface was once covered by over a mile of ice.
No, it's because we can't get new data from the past. There has to be a statistical analysis on what the average temperature looks like given the fact that a 150 years ago people did average temperatures by throwing wooden buckets off sailing vessels.
That information was recorded and it means something. We can also look to other measurements, atmospheric measurements, and geologic measurements and get a better idea of what the average temperature would have looked like given the information we have. Each data point has to be analysed, accounted for, and given an error.
Slightly?
Dude, the planet was tropical, had 40 hour long days, and Mosquitos could be measured in feet. This is when the primary element in the atmosphere was Oxygen, not Nitrogen like it is now.
The Earth's Climate has changed radically in it's geologic past.
The Earth's surface was once covered by over a mile of ice.
And I'm talking about 65 million years ago.
Primordial Earth had rocks and occasional water.
Yes, as the data and science has shown.
No, it's because we can't get new data from the past. There has to be a statistical analysis on what the average temperature looks like given the fact that a 150 years ago people did average temperatures by throwing wooden buckets off sailing vessels.
That information was recorded and it means something. We can also look to other measurements, atmospheric measurements, and geologic measurements and get a better idea of what the average temperature would have looked like given the information we have. Each data point has to be analysed, accounted for, and given an error.