Earth Day is coming up on April 22, and to get in the spirit the Sierra Club has posted a video celebrating awesome Earthly locales.

In the video, a slew of celebrities share their favorite "pieces of America," like Yosemite National Park (Corbin Bernsen), Brooklyn Bridge Park (Mayor Bloomberg), Big Sur (Laura Prepon) and the redwood forests of Northern California (Kristin Bauer).

Beyond "celebrating the mountains, deserts, grasslands, forests and whitewater rapids that make up the great outdoors," the Sierra Club is also encouraging Americans to spend more time outdoors and fall in love with nature, in the spirit of their founder John Muir.

The group is offering a trailfinder app for iPhone and a chance to win a trip to the North Cascades. To enter, vist their website and sign a pledge to spend more time outside.

To learn more about Earth Day, check out these tips for how you can get involved on April 22, and these books that could "change the way [you] think about the Earth."

This year's Earth Day comes as deforestation remains a problem around the world. Forests in Brazil and Malaysia were destroyed at alarming rates earlier in 2011, although Amazon rainforest destruction rates dropped later in the year.

世界地球日（World Earth Day）即每年的4月22日，是一项世界性的环境保护活动。该活动最初在1970年的美国由盖洛德·尼尔森和丹尼斯·海斯发起，随后影响越来越大。2009年第63届联合国大会决议将每年的4月22日定为“世界地球日”。活动旨在唤起人类爱护地球、保护家园的意识，促进资源开发与环境保护的协调发展，进而改善地球的整体环境。中国从20世纪90年代起，每年都会在4月22日举办世界地球日活动。

这段视频是塞拉俱乐部（美国环保组织）发布的一段视频，其中各国际巨星纷纷和观众们分享了自己最爱的美国地点。