4 - chlorofluorocarbons(CFCs carbon dioxide methane and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
4) Acid Rain Acid rain – the mixture of precipitation with air pollutants, such as sulfur dioxide and nitrogen oxide • Acidic precipitation destroys plant and animal life and ends up contaminating water systems. • In the U.S., western states have polluted eastern states via acid rain. 5) Destruction of Rain Forests • Now less that 7% of the Earth’s surface (2 billion acres), yet this small portion is home to half the world’s plant and animal species • Only half of all rain forests are left • 65,000 square miles are lost each year; a plot of land the size of a football field is destroyed every second of every day • Global warming is just one of the consequences 5) Global Warming • The greenhouse effect refers to the collection of increasing amounts of
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: chlorofluorocarbons (CFCs), carbon dioxide, methane, and other gases in the atmosphere, where they act like the glass in a greenhouse, holding heat from the sun close to the earth and preventing the heat from rising back into space. • Evidence for the greenhouse effect lies in the increasing temperatures recorded around the world. Heat and drought caused by the greenhouse effect has at least three negative consequences: 1) it threatens crops and food supplies; 2) it accelerates the extinction of numerous plant and animal species; and 3) it threatens to melt polar ice caps and other glaciers, resulting in a rise in sea level (and the flooding of many countries, such as Egypt and Bangladesh)....
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online