affect our environment unnaturally?
It is not the natural resources by themselves that harm
the Earth's environment -
it is what humans do with the natural resources that cause
to the environment and to the health of living things, including other
The burning of fossil fuels in factories to make
products and power, and the fuels used by trucks, automobiles and jet planes have caused acid rain
and a great increase in carbon dioxide and pollution in the atmosphere. And forests
have been destroyed which used to absorb carbon dioxide. Carbon
dioxide traps heat in our lower atmosphere.
Scientists believe that human activities
such as these have led to global warming.
Global warming (worldwide increased temperature) is causing glaciers to melt, seas to
rise, climates to change, violent weather, destruction of coral reef
ecosystems, crops to die, famine, floods, topsoil to
wash away, droughts, and the loss of plants and animals.
Whew! Warm, isn't it?