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Restoring the 'River of Grass'

Located in Florida, the Everglades is one of the largest wetlands in the world - spanning 1.5 million acres. But it was once nearly twice that size before canals and dams altered its landscape. Meet the scientists and engineers bringing back its natural flow.

04:00 - Source: CNN
Call to Earth 15 videos
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Restoring the 'River of Grass'
04:00
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Saving South Africa's endangered sandfish
04:02
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Meet the blind conservationist fighting to save nature’s soundscapes
03:38
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<p>Iracambi, an environmental organization, is working with the indigenous Puri people to restore biodiversity in the Atlantic Forest in southeastern Brazil, an area experiencing higher rates of deforestation than the Amazon.</p>
Guardians of the Forest Seeds: Restoring Brazil's Atlantic Forest
04:02
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Protecting Mexico's bats
03:59
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Protecting Nigeria's endangered primates
03:51
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Call to Earth: Searching for super coral
23:00
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Photographer captures the Milky Way in one of the UK's darkest places
03:31
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<p>A pioneering project in southeastern England has reintroduced the European bison to help restore its ancient woodlands.</p>
A long-lost woolly giant returns to the UK
03:57
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Saving one of the oldest living creatures on Earth
03:49
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Monitoring killer whales with AI
03:57
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SIMONS TOWN, SOUTH AFRICA - JUNE 29: African penguins gather at the end of the afternoon at Boulders Beach June 29,2010 in Simon's Town, South Africa. The vulnerable species live in a penguin colony in False Bay that is part of Table Mountain National Park. Since breeding two pairs in 1982, the penguin colony has grown over the years to over 3,000. Tourists in country for the World Cup have brought double the usual numbers of people visiting the famous penguin breeding ground. (Photo by Paula Bronstein/Getty Images)
The race to save the African penguin
03:56
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Saving saiga in Kazakhstan's 'Golden Steppe'
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Call to Earth: Kings of the forest
22:55
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<p>During the commercial whaling era of the 19th and early 20th centuries, humpback whale populations were reduced by an estimated 95%. An international ban on the practice has since helped the species rebound. Photographer Chris Fallows takes CNN out to sea for a firsthand look at the iconic species.</p>
The comeback of the humpbacks
04:00
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- Source: CNN