Re: population growth & physics ed

["Rick & Bea Tarara" <rbtarara@sprynet.com>]

YES it is just the winter/summer cycle ( as clearly shown in the Burke
film)   ;-)



Rick Tarara

----------
> From: Dave Baum - Drew University Physics Dept. <DBAUM@drew.edu>
> P.S. interesting that the CO2 concentration shown in the http site
you
> mention shows an annual cycle.  Does anyone know why this is? 
Possibly
> aphelion and perihelion?
>
> I THINK that the annual cycle is just the variation in the CO2
produced/absorbed by vegetation from winter to summer.  Remember that
most of the land surface
> and therefore vegetation is in the northern hemmisphere.