Protecting the planet is a cause near and dear to many people and many major nonprofit organizations. In order for those groups to be effective, however, they need dedicated, hardworking advocates to raise awareness in their communities, solicit donations and coordinate volunteers, among other things, and that's where environmental advocates come in. These jobs are particularly suited to retirees for numerous reasons.
First, they aren't physically demanding. Environmental advocates will typically work in an office environment and spend a lot of time on the phones. Second, they don't necessarily require a particular degree or special training in many cases. Anyone with a passion for a cause and a background in business, sales or fundraising is qualified. And best of all, there are positions available for virtually any environmental cause imaginable, like dolphins (the International Dolphin Watch) or rainforests (Rainforest Conservation Fund). Whatever the cause, some organization out there needs help. No wonder environmental advocates, along with advocates for human rights and other social issues, hold nearly 200,000 positions in the United States [source: BLS].