Originally Posted by broncos_mtnman
You see, at one time, the MAJORITY of people thought the earth was flat. A small minority who were willing to look deeper at the data, developed another POV, and over time, proved the earth was round.
Today, the MAJORITY of people think GW is caused by mankind. A small minority whe are willing to look deeper at the data, have another POV.
So actually, you have it backwards....
Those who believe (without definitive proof) that GW is caused by excessive CO2 are the flat earth folks.
As I have told you GW deniers countless times, the educated people knew all
along the world was round. Just like the educated people know that
GW is caused by humans.
The strongest adherents of the idea the world was flat was the Bible thumpers,
because they felt it said in the Bible the world was flat. Oddly enough this
is the right's biggest constituency, and interestingly the right is also
the only deniers of GW. Face it, when is the right ever right?
By classical times an alternative idea, that Earth was spherical, had appeared in ancient Greece. Pythagoras (6th century BC).
Around 330 BC, Aristotle provided observational evidence for the spherical Earth, noting that travelers going south see southern constellations rise higher above the horizon. This is only possible if their horizon is at an angle to northerners' horizon. Thus the Earth's surface cannot be flat.
The Earth's circumference was first determined around 240 BC by Eratosthenes. Eratosthenes knew that in Syene (now Aswan), in Egypt, the Sun was directly overhead at the summer solstice, while he estimated that a shadow cast by the Sun at Alexandria was 1/50th of a circle. Eratosthenes used rough estimates and round numbers, but depending on the length of the stadion, his result is within a margin of between 2% and 20% of the actual circumference.
By the 1st century AD, Pliny the Elder was in a position to claim that everyone agrees on the spherical shape of Earth.
In the Second century the Alexandrian astronomer Ptolemy advanced many arguments for the sphericity of the Earth.