Here are some links to explore, some for topics covered this week and some just for fun:

General Interest

Internet Resources for Physical Geography
Physical Geography and Environmental Research
Global Energy and Water Cycle Experiment
 U.S. Geological Survey Home Page
The Geologist's Lifetime Field List
AGU Home Page: Science and Society
Environmental Studies and Environmental Science Programs
Shaded Relief Maps of the United States
Color Landform Atlas of the United States
The National Map Seamless Server Viewer
Map of the Physiographic Provinces of Maryland
 

News - some new, some old

< style="font-family: tahoma;"> Managing Planet Earth: a special section from the New York Times
On an Altered Planet, New Diseases Emerge as Old Ones Re-emerge
The acid ocean - the other problem with CO2 emission
Is the ocean carbon sink sinking? the carbon cycle positive feedback
Under China's booming North, the future is drying up
Coral mortality and African dust
RealClimate - climate science from climate scientists

Astronomy and Planetary Science

Origins: Timeline of the Universe
The Nine  Eight Planets - a Multimedia Tour of the solar System
Solar System Live
The Origin of the Moon
Mars Exploration Program
 

Earth

Earth Introduction
Origin of the atmosphere and oceans
Earth
Earth Viewer
Directorate of Time
World Time Zone Map
Sunrise/Sunset computation - U.S. or World
Sun or Moon Rise/Set Table for One Year

Radiant energy

What are those squiggly lines? Using light to learn about the universe
Description of the electromagnetic spectrum (2 - more detailed)
Description of the electromagnetic spectrum (3 - from NASA/Goddard Space Flight Center)