Kick-start a discussion of the importance of biodiversity with a colorful resource that touts the benefits of maintaining healthy ecosystems. The images stress the interdependence of all the elements of an ecosystem.

The Ozone and Water Vapor Group conducts research on the nature and causes of the depletion of the stratospheric ozone layer and the role of stratospheric and tropospheric ozone and water vapor in forcing climate change.

This thorough site describes the forces and processes involved in the movement of water through a plant.

Depending on a variety of factors, learn about some methods used for transporting aggregates by land and water.

Explains what is meant by sediments, how they can become contaminated, the types of contaminants, how contamination levels are assessed, and methods of remediation. The side menu links to information about policies, contaminant...

Learn how green transportation such as cars, autos, busses, and trains can help our environment.

View the Smithsonian's collection of patent models that demonstrate marine inventions from the 1770s to the 1950s that attempted to change and improve the challenges Americans encountered working and traveling on the water.

Here's a career profile for a career you perhaps have not considered. Captains of ships and boats used for moving cargo or passengers are considered part of the merchant marines. Read about the type of work involved with this career as...

A detailed site providing information on the history of steamboats and many facts on this older form of transportation. Take a virtual tour and learn about some popular steamboats of the time.

The discovery of gold in Alaska set the stage for its later settlement by people from many places who came to seek their fortunes. Subsequent transportation of people and goods by water and overland are described, as well as the...

Types of herbicide transport, degradation, and herbicides and water quality of water are focused on in this competent site.

Site has great map of the entire canal system of New York. Student can click on regions they "would like to see in greater detail."

Site has great map of the entire canal system of New York. Student can click on regions they "would like to see in greater detail."

[Free Registration/Login Required] A collection of five data sets from SEDAC (Socioeconomic Data and Applications Center) that look at road networks, reservoirs, and dams in countries around the world, with one set examining China's...

How much fun would it be to plan a trip on the QM2? Here's the official information for this incredible ship. Take a tour, look at its destinations, and find out what you can do on board for fun.

This is a delightful site about boats and boating. Lots of games plus a terrific overview of the history of navigation. Includes a visit to a reproduction of Columbus' Nina.

The U.S. Senate Committee on the Environment and Public Works website provides a summary and description of its responsibilities.

Over 14,000 files and 3,000 images of ships throughout history are located at this site.

This article presents information about steamboat whistles and their meanings. A link is provided for listening to recordings of steamboat whistles.