Monthly Archives: July 2009

Biodiesel from Algae Holds Promise

By David L. Brown The challenge of finding renewable sources of energy continues to haunt humanity. The misguided ethanol program that turns corn into alcohol has backfired, driving up food prices and helping create scarcity. Biodiesel made from soybeans is … Continue reading

Posted in Age of Oil, Agriculture Issues, Energy Technology | 19 Comments

Sun Begins to Show Its Spots

By David L. Brown A few days ago I wrote about the failure of the Sun to enter what should by now be an increasingly active period as demonstrated by the appearance of sunspots. That intransigence by our star seems … Continue reading

Posted in Astronomy, Climate Change | Comments Off on Sun Begins to Show Its Spots

World Leaders Vote Present on Climate Change

By David L. Brown The news from Italy today is headlined by BBC online (here) as follows: “World Powers Accept Warming Limit.” The story explains that members of the G8 have agreed to limit global warming to two degrees C. … Continue reading

Posted in Climate Change, Politics | Comments Off on World Leaders Vote Present on Climate Change