Apr 22, 2009 | 3
Today marks the 39th annual Earth Day, an idea hatched by Wisconsin Senator Gaylord Nelson in 1969 to "shake up the political establishment and force this issue into the national agenda," according to the Earth Day Network, a nonprofit that helps organize the day.
But way back before global warming was a household term and canvas totes were a fashionable alternative to shopping bags, environmental supporters started with the basics: recycling, energy use, pesticides and population growth, to name a few.
So how much have actions and attitudes about saving the earth changed since then? Mark Fischetti, managing editor of Scientific American Earth 3.0 magazine, reflects that, "Back in the '70s, Earth Day was kind of this quirky, one-day grassroots event. It raised a little awareness, but the next day it was gone… Now it's on the radar every single day, it's in the headlines every single day."
Deadline: Jan 27 2014
Reward: $15,000 USD
The Dow Chemical Company is the leading producer of polyalkylene glycols (PAGs) used in synthetic fluids and lubricants where petroleum,
Deadline: Jan 11 2014
Reward: $20,000 USD
Conventional washing machines cause excessive damage and wrinkling to clothes primarily during the water removal step. With the introduc
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