دانلود کتاب Before they're gone: a family's year-long quest to explore America's most endangered national parks

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A lifelong backpacker, Michael Lanza knows our national parks like the back of his hand. As a father of two, he hopes to share these special places with his kids. But he has seen firsthand the changes wrought by global warming and understands what lies ahead: melting glaciers, disappearing species, and inundated coastlines. To Lanza, it feels like the house he grew up in is being looted. Painfully aware of the ecological--and spiritual--calamity that global warming will bring to our nation's parks, Lanza is determined to show his children these wonders before they have changed forever.

He takes his nine-year-old son, Nate, and seven-year-old daughter, Alex, on an ambitious journey to see as many climate-threatened wild places as he can fit into a year: backpacking in the Grand Canyon, Glacier, the North Cascades, Mt. Rainier, Rocky Mountain, and along the wild Olympic coast; sea kayaking in Alaska's Glacier Bay; hiking to Yosemite's waterfalls; rock climbing in Joshua...