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The first Earth Day was in 1970.People were beginning to worry about what we were doing to our environment. So they set up Earth Day to tell everyone about their worries. In 2007 organizers in over 150 countries planned over 4,000 big events. But Earth Day is not just about marches(游行) and big events. In the week around Earth Day (22 April) there were many thousands of smaller, local events. These events dealt with environmental problems in the neighborhood. The world Wide Fund for Nature made a list of 5 things that each person could do to save the environment.
Don’t leave the tap running.
Turn off lights when you leave a room.
Turn off your computer every night.
Wash your clothes, and yourself, in warm or cold water, not hot water.
Dishwashers use as little water as possible.
If we all do at least 2 of these all the time, we can make a big difference.
Was the first Earth Day set up in 1970 ?                       
When is Earth Day?                             
How many countries planned big events in 2007 ?                     
What should people do when the water keeps running from a tap?      
What else can you do to save our environment ?