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Next: ever since 1842, the Doppler shift was assumed to exist for lightwaves and never experimentally verified Chapt 8 #138; ATOM TOTALITY
From: Dave Typinski on 5 Jun 2010 14:05
Sam Wormley <swormley1(a)gmail.com> wrote:
>
>Hazy antidote to a faint young sun
>A new theory suggests atmospheric answer to the continuing paradox of
>why early Earth wasn�t icy.
>http://www.sciencenews.org/view/generic/id/59928/title/Hazy_antidote_to_a_faint_young_sun
>
>"Now comes a totally different idea � a planet-cloaking layer of
>hydrocarbon haze. Previous studies have suggested that such haze,
>generated by light-driven chemical reactions in the methane-rich
>atmosphere, would actually cool Earth, but this haze is different, says
>Eric T. Wolf, an atmospheric scientist at the University of Colorado at
>Boulder".

How do we know the Earth wasn't icy after the late bombardment period?
What's the proxy for surface temperature 3 or 4 Gya?
--
Dave
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