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Encyclopedia of Earth Welcome to the Encyclopedia of Earth, an electronic reference about the Earth, its natural environments, and their interaction with society. The Encyclopedia is a free, fully sea ...

THE starting place for exploring Geography, from your About.com expert Guide to geography. Learn about all concepts of geography, find geographic information, maps, and more. Includes geographic information about every country and state as well as ...

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Physical Geography is a sub-discipline of two much larger fields of study - Geography and Earth Sciences. The main purpose of Physical Geography is to explain the spatial characteristics of the various natural phenomena associated with the Earth

In our site you will discover facts about our planet, its complex patterns of biomes, plants, and animals, and how climates ultimately determine the biomes of our Earth.

The Illinois State Water Survey has been a leader in the study of water resources for more than a century. Our research and service programs provide citizens, industries, and government agencies at all levels with timely, science- based information a...

Food and Agriculture Organization of the United Nations: essential documents, statistics, maps and multimedia resources