We are only now beginning to appreciate the effect of human impact on North America’s complex ecosystems.

The most difficult problems to tackle are those that are hard to see and quantify, like climate change which is affecting humans and wildlife. Changes are happening all around us. Glaciers are melting, dolphins and whales have to survive in increasingly polluted oceans. If we are to understand the consequences of our actions, and to repair ecosystems, we need people like you to help Earthwatch scientists in the field.

 
Common Loon (Gavia immer)

Loons and the Gulf of Mexico Oil Spill

Do something about the worst oil spill in US history. Help research Common loons in the Gulf of Mexico. Rendezvous:New Orleans, Louisiana, USA Coming Soon 7-14 days Easy
 
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Whales of Southern California

Whales and Dolphins Under the California Sun - Short Duration

Spend an incredible weekend researching grey whales Rendezvous:Palos Verdes, California, USA Coming Soon 3 days Easy
 
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Volunteer in Boston, USA

Exploring Boston's Urban Forest - Short Duration

Help to discover the value of urban forests

 Rendezvous:Cambridge, Massachusetts, USA £50 1 days Easy
 
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Voluteer in San Francisco, USA

Exploring San Francisco's Urban Forest - Short Duration

Help to discover the value of urban forests

 Rendezvous:San Francisco, California, USA £50 1 days Easy
 
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River Riparian Zone, California, USA

Protecting the Rivers of the California Delta - Short Duration

Help restore waterways of the California Delta

 Rendezvous:Davis, California £525 3 days Easy
 
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