Begin the Journey EarthEcho Expeditions Google+Hangout

What Happens When We Flush? Virtual Field Trip

How to Measure Carbon Dioxide

Photo: Hiking to the Falls

Into the Dead Zone: What Happens When We Use Fossil Fuels?

Nearly a third of the nutrients that contribute to the Chesapeake Bay Dead zone come from airborne sources. Beginning at a headwaters stream in Shenandoah National Park, Philippe Cousteau Jr. and the EarthEcho Expeditions team investigate how reactive nitrogen in the air makes its way to the Chesapeake Bay.

Photo: Measuring CO2

Photo: Deer at Shenandoah NP

Photo: Ranger Hurlburt and the Scratching Post

Service Learning in Action with Fort Garrison Elementary School

Photo: Big Meadows