Ice cores, sediment layers, and tree rings tell us about what the Earth's climate has been like in the past. ... At the peak of the last ice age (18,000 years ago), the temperature was only 7 ∘F colder than it is today, and glaciers covered much of North America! ... A glacier is a large sheet of ice that moves very, very slowly. ... Oceanfront property would be affected by flooding, and beach erosion could leave structures even more vulnerable to storm waves. ...

• Word Count: 3240
• Approx Pages: 13
• Grade Level: Undergraduate

When most people think of wetlands the first thing that will pop into their mind will be visions of swamps and flooded plains. These marshy lands would seem to have no purpose, while in reality they are the most precious forms of ecosystem that we have in America. Wetlands contribute to biodiversity, clean water, flood control, and provide a habitat for millions of species of plants and animals. Even with all this wetlands still face mass destruction, much like the rain forests they are just as productive and face similar rates of devastation (Mitchell, J. (1992, October). "Our Disappearing We...

• Word Count: 6040
• Approx Pages: 24
• Has Bibliography
• Grade Level: High School