Backed by millions of dollars in venture capital, researchers are producing fuel oil from algae by feeding it carbon dioxide and growing it near CO2-producing power plants -- a renewable biofuel.

Add this to your queue
Added: Tue Apr 14 06:53:43 UTC 2009
Air date: Tue Dec 02 00:00:00 UTC 2008
Duration: 02:20
Rating: 3.7 / 5.0

Environmentalists in Belize work to protect the jungle habitat of endangered wild species, including the jaguar, and the Central American tapir -- the national symbol of Belize.

Add this to your queue
Added: Tue Apr 14 06:53:08 UTC 2009
Air date: Tue Nov 18 00:00:00 UTC 2008
Duration: 03:46
Rating: 4.0 / 5.0

Former Army Ranger John Carter, a cattle rancher in Brazil, runs "special ops" to encourage environmentally responsible farming in the Amazon rainforest, and limit and control clear-cutting, burning and soil erosion.

Add this to your queue
Added: Tue Apr 14 06:53:08 UTC 2009
Air date: Wed Sep 10 00:00:00 UTC 2008
Duration: 02:40

Portland, Oregon invests in public bike trails and bike racks to encourage commuting by bicycle -- a model being followed by several major cities to lower air pollution and allow residents to save on gas.

Add this to your queue
Added: Tue Apr 14 06:53:07 UTC 2009
Air date: Mon Jul 07 00:00:00 UTC 2008
Duration: 02:11
Rating: 4.1 / 5.0

Cities around the world, from Sydney to Phoenix, raise awareness of high global energy use by turning off non-essential lights for one hour, 8-9 pm -- Earth Hour.

Add this to your queue
Added: Tue Apr 14 06:53:07 UTC 2009
Air date: Sat Mar 29 00:00:00 UTC 2008
Duration: 02:05

Kayaker paddles through melting ice fields in the Arctic Ocean to the North Pole to call attention of world leaders to global warming; after the summer of 2008, the sea ice is the thinnest on record.

Add this to your queue
Added: Tue Apr 14 06:53:07 UTC 2009
Air date: Sat Sep 06 00:00:00 UTC 2008
Duration: 02:19

One week after the oil spill in Valdez, Alaska, NBC’s George Lewis reports that it was not only an environmental disaster, but it may also have been a crime so the FBI is investigating.

Add this to your queue
Added: Tue Apr 14 06:53:07 UTC 2009
Air date: Fri Mar 31 00:00:00 UTC 1989
Duration: 02:23

A Connecticut 12-year-old, alerted to global warming on a trip to the Galapagos Islands when he was 10, persuades businesses and residents in his home town to conserve energy, reduce carbon footprint.

Add this to your queue
Added: Tue Apr 14 06:53:07 UTC 2009
Air date: Sun Jan 04 00:00:00 UTC 2009
Duration: 02:37
Rating: 3.8 / 5.0

Detroit automakers use the 2009 Auto Show to display models of electric cars and gas-electric hybrids to compete with the Toyota Prius, and return profitability to the struggling auto industry.

Add this to your queue
Added: Tue Apr 14 06:53:05 UTC 2009
Air date: Mon Jan 12 00:00:00 UTC 2009
Duration: 02:27
Rating: 4.0 / 5.0

In Costa Rica in 2008, an effort to reforest the country -- home to 5 percent of the world's biodiversity -- is a success: forests now cover half the country; 20 years ago, trees covered only 21 percent.

Add this to your queue
Added: Tue Apr 14 06:52:30 UTC 2009
Air date: Wed Apr 23 00:00:00 UTC 2008
Duration: 03:11
Rating: 3.9 / 5.0

A look at different demonstrations and celebrations of the first Earth Day, April 22, 1970, from around the country.

Add this to your queue
Added: Tue Apr 14 06:52:30 UTC 2009
Air date: Wed Apr 22 00:00:00 UTC 1970
Duration: 02:47

Collins Companies, a lumber company in the Pacific Northwest, develops "sustainable logging" -- only thinning a forest by cutting some trees, and allowing remaining trees to re-seed the forest habitat.

Add this to your queue
Added: Tue Apr 14 06:52:29 UTC 2009
Air date: Wed Apr 16 00:00:00 UTC 2008
Duration: 02:30

On Earth Day, 2008, NBC News anchor Tom Brokaw recounts the history of Earth Day -- its proposal by Wisconsin Senator Gaylord Nelson in 1970, the legislation enacted and progress made since.

Add this to your queue
Added: Tue Apr 14 06:52:29 UTC 2009
Air date: Tue Apr 22 00:00:00 UTC 2008
Duration: 02:04
Rating: 4.0 / 5.0

A 2009 study finds Americans' life expectancy increased by 2.7 years since the late 1970s, with 5 months of that attributable to decreases in air pollution from cars and factories.

Add this to your queue
Added: Tue Apr 14 06:52:29 UTC 2009
Air date: Wed Jan 21 00:00:00 UTC 2009
Duration: 02:09
Rating: 3.9 / 5.0

Threatened with extinction in the 1970s because of the pesticide DDT, the bald eagle has recovered and been taken off the endangered list, although their habitats are still threatened by urban sprawl.

Add this to your queue
Added: Tue Apr 14 06:52:29 UTC 2009
Air date: Thu Jun 28 00:00:00 UTC 2007
Duration: 02:25
Rating: 4.4 / 5.0

Wind power meets only one percent of the nation's energy demands in 2008, but a vast new wind farm stretching across two counties in Texas aims to change that, producing electricity with no carbon emissions.

Add this to your queue
Added: Tue Apr 14 06:52:28 UTC 2009
Air date: Mon Apr 21 00:00:00 UTC 2008
Duration: 03:09
Rating: 3.8 / 5.0

California's population of Channel Island Foxes was nearly extinct, but a restoration of their habitat and a captive breeding program rebuilt their population from 15 to 650 in just 10 years -- the fastest species rescue ever.

Add this to your queue
Added: Tue Apr 14 06:52:27 UTC 2009
Air date: Mon Dec 01 00:00:00 UTC 2008
Duration: 02:35
Rating: 4.1 / 5.0

On her climb up Mt. Kilimanjaro, Today show correspondent Ann Curry reports, by satellite phone, on the effects of climate change on glaciers, and water supplies for tribes that live at the foot of the mountain.

Add this to your queue
Added: Tue Apr 14 06:51:52 UTC 2009
Air date: Wed Nov 19 00:00:00 UTC 2008
Duration: 02:55

NBC's Hugh Downs talks with two of the co-founders of Earth Day, Denis Hayes and Representative Paul McCloskey. They discuss their aims and goals with Earth Day and how they hope it will make a difference.

Add this to your queue
Added: Tue Apr 14 06:51:51 UTC 2009
Air date: Wed Apr 22 00:00:00 UTC 1970
Duration: 05:02

One year after a 2007 tornado destroyed Greensburg, Kansas, residents and businesses are rebuilding with environmentally-friendsly materials and energy sources to make Greensburg the "greenest" town in America.

Add this to your queue
Added: Tue Apr 14 06:51:50 UTC 2009
Air date: Sun May 04 00:00:00 UTC 2008
Duration: 02:08
Rating: 3.7 / 5.0