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，是一項(xiàng)世界性的環(huán)境保護(hù)活動(dòng)。該活動(dòng)最初在1970年的美國(guó)由蓋洛德·尼爾森和丹尼斯·海斯發(fā)起，隨后影響越來(lái)越大。2009年第63屆聯(lián)合國(guó)大會(huì)決議將每年的4月22日定為“世界地球日”?；顒?dòng)旨在喚起人類愛(ài)護(hù)地球、保護(hù)家園的意識(shí)，促進(jìn)資源開(kāi)發(fā)與環(huán)境保護(hù)的協(xié)調(diào)發(fā)展，進(jìn)而改善地球的整體環(huán)境。中國(guó)從20世紀(jì)90年代起，每年都會(huì)在4月22日舉辦世界地球日活動(dòng)。

這段視頻是塞拉俱樂(lè)部（美國(guó)環(huán)保組織）發(fā)布的一段視頻，其中各國(guó)際巨星紛紛和觀眾們分享了自己最愛(ài)的美國(guó)地點(diǎn)。