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Great ways to celebrate Earth Day can include a walk in the park, attending a local Earth Day event, or...
“My dad is the driving force behind my desire to serve the planet. He was the one who took me to my first National Park…”
In 1976, as a high school junior, Ellen Tohn flew from New York to California to join an SCA trail crew in Yosemite National Park. The airline lost her luggage – but Ellen found her calling. Following another hitch with SCA, degrees at Cornell and MIT, and years of work in environmental policy, today Ellen is a nationally recognized expert in housing-based environmental health threats, indoor air quality and lead poisoning prevention.
Louise Shelley of Washington, DC, is a generous SCA contributor who also donates her time, contacts, and considerable energy to...

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