The population of the world
is expanding at a tremendous rate. As a result, the strain on food supply,
fuel, and living space is incredible. To give you an idea of how many people
are living on the Earth right now, and how quickly the population is expanding,
click on the crowd of people below. Once you are there, make a note of the
time recorded in the small text at the top of the page, and write down the
current population. After doing this, refresh the web page. Write down the
new numbers. This should give you an idea of how fast we are populating this
tiny planet.
http://www.census.gov/cgi-bin/ipc/popclockw