The City of Lakes - this is what Bangalore was known as before it was called the
Garden City. But alas, it's neither a blue, (lakes & water-bodies) nor a green (tree/forest
cover) city any more. Most of the lakes in Bangalore were constructed way back in the
sixteenth century by damming the natural valley systems by building check-dams &
bunds across them.
Every year the world observes April 22nd as Earth Day on a global scale. This event
was started in the year 1970 by Gaylord Nelson - A US Senator and Environmentalist.
The event was observed to highlight the destruction caused to the environment followed
by an oil spill in Santa Barbara, California in 1969. That year saw 20 million people
taking to the streets to voice their anguish against the environmental hazards.