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Researching yield vs. planting date.
I was wondering if anyone could help me...
July 2008
John Calvin's Birthday, Jul 10th
Inventor, Nikola Tesla's Birthday, Jul 10th, 1856
John Quincy Adams's Birthday, Jul 11th
What is Earth Day?
On April 22, 1970, 20 million people across America celebrated the first Earth Day by filling their local streets, parks and auditoriums to demand a healthy, sustainable environment. They were concerned about their cities laden with smog, polluted rivers, rampant pollution and other environmental hazards.
Since then, Earth Day is celebrated around the world, by people from all walks of life who are concerned about making a sustainable future for their children. Events, festivals and overall awareness campaigns mark the day, with the hope of preserving the environment.
While there is a lot to do, there has been some notable progress (as well as recognition of problems) over the past 20-30 years. Here are a few highlights (courtesy of the U.S. EPA):
1982
Congress enacts laws for safe disposal of nuclear waste.
1983
Cleanup actions begin to rid the Chesapeake Bay of pollution stemming from sewage treatment plants, urban runoff, and farm waste.
1985
Scientists report that a giant hole in the earth's ozone layer opens each spring over Antarctica.
1990
Congress passes the Clean Air Act Amendments, requiring states to demonstrate progress in improving air quality.
1991
Federal agencies begin using recycled content products.
1992
EPA launches the Energy Star® Program to help consumers identify energy-efficient products.
1996
EPA requires that home buyers and renters be informed about lead-based paint hazards.
1998
President Bill Clinton announces the Clean Water Action Plan to continue making America's waterways safe for fishing and swimming.
1999
President Bill Clinton announces new emissions standards for cars, sport utility vehicles, minivans and trucks, requiring them to be 77 percent to 95 percent cleaner than in 1999.
2003
More than 4,000 school buses will be retrofitted through the Clean School Bus USA program, removing 200,000 pounds of particulate matter from the air over the next 10 years.
2003
Clear Skies legislation and alternative regulations are proposed to create a cap and trade system to reduce SO2 emissions by 70 percent and NOx emissions by 65 percent below current levels.