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Care2 is an community of people who wish to make a difference in environmental and social issues, with an emphasis on living a green lifestyle.

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Change.org is the hub for 20 major cause-centered online communities that promote social change.

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Changing The Present is a community focused on finding and contributing to causes.

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A community for environmental change that uses media and the power of many to raise awareness and promote change.

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A social network for those interested in sustainability and the environment.

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A community of people who share ways to live with a minimal environmental impact.

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Greenvoice is an online platform for environmental campaigns.

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A social community for youth interested in global issues and creating change.

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SocialVibe is focused on empowering its users to help raise money for the cause of their choice.

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Make Me Sustainable is a community that lets you connect with other individuals and businesses concerned about their environmental.