Will they bring up the fact that Earth's greenhouse is caused by the enormous amount water vapor in our atmosphere, and not the trace amount of CO2 -- unlike Venus (Sagan's source for his "runaway greenhouse" theory) which has an atmosphere that is nearly 100% CO2? Will they point out that without our H2O-based greenhouse effect, Earth would be lifeless frozen rock -- exactly like our moon?
Do you think they'll also mention that Venus is 30 million miles closer to the sun than Earth? Could that have at least as much to do with its 900 degree surface temperature as its atmosphere? Mercury, another 30 million miles closer, with no atmosphere, has a 330 degree temperature.
I wonder if they'll also mention that the ice caps on Mars (50 million miles farther than Earth) have grown and receded at the same rate as our own, during the same timeframe that Sagan's "runaway greenhouse" theory has terrorized the science-ignorant dumb masses. Or that Mars ALSO has a CO2 atmosphere (that for some reason is not "running away")?
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