Methane has been reported by several observers as a short-lived trace gas in the martian atmosphere. If verified, this would be an extraordinary result. Is the evidence for methane extraordinary? In this talk, Dr. Kevin Zahnle will discuss why one should remain skeptical of Methane on Mars.Speaker: Dr. Kevin Zahnle, ...
Where: Mountain ViewCost: Free
Zero Water In the '80's and '90's, some businesses began to adopt an ethic of 'zero discharge'--this was especially true for manufacturing processes that had previously been treating wastes from their core activity as 'externalities.' at first viewed by many as an impossibility, it nonetheless established a goal towards which to work. ...
Where: San RafaelCost: $10 Members advance, $15 General and day of
'The Antarctica Challenge: A Global Warning'This disturbing documentary goes to the source of the climate change crisis: Antarctica. The environmental challenges that face that frozen continent, and by extension, the world, are explored first hand. The film reveals many startling new scientific revelations such as new vegetation growing in the world's largest desert, new data ...
