No-Show Green Voters / Exploring the Parks: Cactus and Snow in the Desert Sky Islands / BirdNote®: Ponderosa Pine Savanna / Fighting Climate Change, Naturally / Free the Beaches: Desegregating America's Shoreline In the United States, approximately 20 million registered voters list the environment as one of their top two priorities. But these "super-environmentalists" tend to stay home on Election Day.

Also, Arizona's Sky Islands are home to heat and cactus, but also many species that you're more likely to find far north of the desert Southwest - and even considerable snow.

And the US civil rights movement to end racial segregation in the 1960's was fought in the North as well as the South. In Connecticut, just about all of the Long Island Sound beaches were off-limits to people of color, until creative organizing finally secured access for all children.

That and more, in this episode of Living on Earth from PRI.

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