El Niño has unleashed hurricanes and droughts; the greenhouse effect is blamed for rising temperatures; and the thinning of the ozone layer might lead to an increase in skin cancer among humans" ("Today's Science: Global Warming and Ozone Hole Linked "). ... Vegetation also emits carbon dioxide into the air but only accounts for about fifteen-percent" ("What Human Activities Contribute to Climate Change?"). ... Inlets, where the river meets the sea, will widen out, and cause the sea water to flow into rivers and streams. ... The primary cause is the emission of carbon dioxide int...

• Word Count: 3357
• Approx Pages: 13
• Grade Level: High School