Could global warming trigger a new ice age?
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10 Ways the World Will End: The Big Freeze
The Science Channel's "10 Ways the World Will End," explains how global warming could trigger a new ice age, which would destroy all life as we know it.
100 Greatest Discoveries: Global Warming and CO2
It was American geochemist David Keeling who helped make the link between global warming and carbon dioxide emissions. Learn more about his studies on The Science Channel's "100 Greatest Discoveries."
100 Greatest Discoveries: Shrinking Glaciers
The melting of glaciers is one of the most visible effects of global warming. See it captured on film and learn how the emission of fossil fuels may contribute to current warming trends on The Science Channel's "100 Greatest Discoveries."
Al Gore Talks at TED About Global Warming
Watch this video from TED featuring Al Gore on HowStuffWorks. Al Gore, in his own words, "used to be the next President of the United States of America" but has since changed professions. See how global warming works from Al Gore in this video from TED (w
Alaska's Climate Change
Because Alaska is in the arctic, residents get to see the effects of global warming first hand, which is something most Americans don't get to do. Watch this video to see the devastating effects of climate change for yourself.
Animals: Polar Bear Cubs in Big Trouble
As sea ice decreases in both coverage, thickness and age, polar bears could have fewer cubs, according to new research. Jorge Ribas reports on the findings from the Arctic.
Animals: Polar Bears Forced to Swim Longer Distances
Female polar bears and their cubs are swimming increasingly longer distances causing higher mortality rates for the young bears, a new study finds. Martin Berman reports.
Animals: Seals Filmed Fighting For Air
A seal-mounted video camera catches seals fighting for access to air after their hunting grounds are clogged by an iceberg. Learn more in this Discovery Channel video.
Balancing our Planet's Energy Budget
Watch this NASA video to learn about a new green science concept that has its roots in monetary policy. Learn how our "energy budget" is out of balance and why this may be causing global warming.
Best Evidence: Chemical Contrail Researchers
Research is being conducted in order to study the possibility of chemicals in jet plane contrails. Hear what the believers have to say about it on Discovery Channel's "Best Evidence."
Best Evidence: Chemicals in Jet Contrails
On Discovery Channel's "Best Evidence," experts weigh in on how they believe the chemical contrails produced by military airplanes is contributing to global warming.
Best Evidence: Chemtrail Believers
On Discovery Channel's "Best Evidence," meet scientists and experts who believe that the government is putting chemicals in jet contrails to modify the climate.
Best Evidence: Contrail Analysis and Health
On Discovery Channel's "Best Evidence," learn about the possible health risks that some experts believe are caused by chemtrails from jets.
Best Evidence: Contrail Global Warming Effects
On Discovery Channel's "Best Evidence," learn why a growing number of people believe that jet contrails have been turned into chemtrails in order to fight off some of the effects of global warming.
Best Evidence: Contrail Patterns
Air traffic in the United States has increased dramatically. On Discovery Channel's "Best Evidence," activists discuss how they believe there's more to the story when it comes to the amounts and variety of contrail patterns.
Best Evidence: Contrail Weather Modification
On Discovery Channel's "Best Evidence," researchers argue against the theory that there is a secret weather modification program being conducted by the government.
Best Evidence: Cooling Chemtrails
Geoengineering theory says that aluminum oxide could be injected into the atmosphere to deflect sunlight and cool the climate. On Discovery Channel's "Best Evidence," activists argue that this theory is already in practice by the government.
Best Evidence: Geoengineering Chemtrails
Geoengineering is the artificial manipulation of the Earth's environment. Activists believe the government is trying to control global warming by injecting aluminum oxide into the atmosphere. Learn more on Discovery Channel's "Best Evidence."
Best Evidence: Jet Fuel Flame Test
On Discovery Channel's "Best Evidence," further tests are conducted to test jet fuel for aluminum particles and to determine if there are any toxins present that could be turning regular contrails into chemtrails.
Best Evidence: Jet Fuel Testing
On Discovery Channel's "Best Evidence," jet fuel is tested for toxins that could be turning contrails into chemtrails.
Best Evidence: Jet Plane Contrails
Jet planes fly through the atmosphere and produce hot exhaust that then condenses into ice crystals, which linger in the sky. Some people believe these contrails contain toxic chemicals. Learn more on Discovery Channel's "Best Evidence."
Best Evidence: Secret Weather Modification Programs
Some people believe that some jet contrails contain chemical additives that are part of a secret government weather modification program. On Discovery Channel's "Best Evidence," experiments are done to confirm the allegations.
Best Evidence: Using Contrails to Cool the Climate
Geoengineers are experimenting with ways to cool down global warming. On Discovery Channel's "Best Evidence," scientists discuss the possibility of adding sulfur dioxide to airplane contrails in order to cool the climate.
Building a Green Football Stadium
Although you may not think of football stadiums when you consider green buildings, that didn't stop the University of Minnesota from building one. Learn about the ecologically-friendly construction in this video.
Climate Change
Watch this video about climate change on HowStuffWorks. This NASA Destination Tomorrow segment is explaining how NASA will use satellites engineered to analyze and predict trends in climate change and global warming. Learn how analyzing climate change wor
Climate Day in Schools
Watch this NASA video to learn more about global warming and climate change. Climate Day is a school activity across the country where students learn about the environment and how we can take care of Mother Earth a little bit better.
Coal Fires are Killing the Environment
Watch this video about coal fires on HowStuffWorks. You may not be aware that coalfires, both natural and man-made, generate large amounts of carbon dioxide. In China alone, the estimated amount equals that of the U.S. transportation sector, according to
Dell Says, Plant a Tree for Me
Watch this video about global warming on HowStuffWorks. With global warming becoming such a huge issue, Dell has begun a program that gives you the option to plant a tree when you buy a computer to combat the carbon impact on the world. See how to help fi
Discovery Earth Live: Black Soot and Snow
Learn how soot lowers the albedo -- or reflectivity -- of ice, causing it to retain more heat. This leads to an increased melting rate. To learn more about black soot and snow, check out this clip from "Discovery Earth."
Discovery Earth Live: Ice Melt 2005 to 2007
This animation presents the Arctic's sea ice minimum extent. Watch as the 2005 minimum sea ice fades to orange and the 2007 minimum extent comes into view in this clip from "Discovery Earth."
Discovery Earth Live: Tour of Cryosphere
The cryosphere consists of those parts of the Earth's surface where water is found in solid form -- snow, sea ice, glaciers, permafrost, ice sheets and icebergs. Take a tour of the cryosphere in this video from "Discovery Earth."
Discovery News 2009: Caves Offer Climate Clues
Cave formations may offer a new chance to track climate history back thousands of years. Discovery News' James Williams climbs below the surface to learn more.
Discovery News: Earth: Climate Change Art
Eve Mosher is taking her message to the streets. She's chalking a line across New York City that shows where flooding could reach if a really big storm hits.
Discovery Project Earth: Balloon Cam Raw
A camera attached to a balloon on the "Orbital Power Plant" shoot floats into space then crashes down to Earth. The time-lapse is drawn from 5 hours of footage. Watch this video from Discovery Channel to learn more.
Discovery Project Earth: Brighter World Primer
Could a cloudy day really save the planet? Watch the Project Earth team test whether clouds could curb the rise of global warming in this video from Discovery Channel.
Discovery Project Earth: Coil Gun Tech
Learn how the latest military technology could also be a revolutionary breakthrough for space travel in this video from Discovery Channel.
Discovery Project Earth: Infinite Winds Primer
In many ways, the Earth's atmosphere is like an ocean made of air. It has differing densities, temperatures and currents. Find out how scientists plan to harness the power of atmospheric currents to hold off global warming in this Discovery Channel video.
Discovery Project Earth: Jakobshaven Glacier Retreat
This animation shows how Greenland's Jakobshaven Glacier is moving into the Atlantic Ocean more rapidly than ever before. Get a close-up look at the glacier's acceleration in this clip from Discovery.
Discovery Project Earth: Raining Forests In a Nutshell
Replanting the Earth's depleted forests is a daunting task. Check out this Discovery Channel "Project Earth" clip for a three-minute primer on the mechanics of mass reforestation.
Discovery Project Earth: Rocket Crash
Will the Space Sunshield team be able to get the lenses into space using a homemade rocket? Check out this Discovery Channel "Project Earth" video to learn more.
Discovery Project Earth: Space Sunshield in a Nutshell
Will the Space Sunshield team be able to get the lenses into space using a homemade rocket? Check out this Discovery Channel "Project Earth" video to learn more.
Discovery Project Earth: Wrapping Glaciers
Watch a three-minute primer on Dr. Jason Box's plan to cover glaciers in blankets to stop them from melting in this video from Discovery Channel.
Earth 2050: Industry and Environment
Dan Kammen, Professor of Energy at UC Berkeley, talks about the changes in our atmosphere since the industrial revolution, and what that may mean for our planet's natural cycles in this extended interview from "Earth 2050".
Earth: 3 Questions about Floods
The rising floods in Iowa raise questions about floods in general. Watch as James Williams gets some answers in this clip from Discovery Channel.
Earth: 3 Questions about Rising Tides
Sea levels are rising, and oceanographer Eric Leuliette is busy using satellite data to learn more about it. In this Discovery Channel video, Jorge Ribas gets Eric to sit down for three questions.
Earth: A Dwindling Catch 1
Despite a 14-year, $58 million program to save the oyster population, oyster fishermen in Maryland's Chesapeake Bay struggle to maintain their livelihood. Watch this Discovery Channel video to learn more about the current decline of the fishing industry.
Earth: A Dwindling Catch 2
The Chesapeake Bay depends on oysters to filter its waters. Yet nearby communities depend on oysters for jobs. In this video, Jorge Ribas reports on the struggles of saving a tradition while looking to the future.
Earth: Algerian Sands Swallow Carbon Dioxide
In an effort to stop greenhouse gas from contributing to global warming, carbon dioxide is being stocked in underground reservoirs in the Algerian desert. But will it work? Check out this video from Discovery Channel to learn more.
Earth: Appalachian Coal Digs Up Controversy
West Virginia residents claim the coal mining industry in the Appalachian Hills is destroying their way of life. Take a closer look at coal mining and its effect on the climate in this Discovery Channel video.
Earth: Bikes Smarten Up in US
The first bike-sharing program in the United States will be open soon, and supporters of the initiative hope it will relieve congestion and pollution in metropolitan areas. Learn more about bicycling programs in this Discovery Channel video.
Earth: Disney Gardens Ditch Dirt
A Disney vacation is one of the last places you would expect to learn about agricultural science, but scientists are teaching tourists about a new twist on a historic method for growing plants. Watch this Discovery Channel video to learn more.
Earth: Glacier Comparisons
Discovery News' Lori Wark takes an in-depth look at glaciers around the world and the way climate change has affected them in this video. Check it out for a close-up look at the change in glaciers over time.
Earth: Harmful Chemicals Found In Arctic
Ecologists have found chemical flame retardant building up in the tissues of arctic animals. Learn more about long-term pollution in this video from Discovery Channel.
Earth: Mt. Rainier Faces Grim Future
Another eruption of this active volcano isn't the only pending disaster facing Washington's Mt. Rainier. Climate-related disasters are springing up on this mountain, resulting in long-lasting effects downstream.
Earth: New Gold Prospectors
Gold prices are at all-time highs and a new gold rush is on in Alaska. Watch as Jorge Ribas finds a few prospectors looking to strike it rich in this Discovery Channel video.
Earth: New York City's Trash Brightens Up
A New York City artist is installing a public art project throughout the streets to beautify the city and raise awareness of over-consumption and waste. Check out this video from Discovery Channel to learn more about consumption and art.
Earth: Polar Drilling Yields Climate Clues
Core samples from Antarctica tell a fascinating story about how the Earth's climate has changed over thousands of years. Discovery News' James Williams digs into the details.
Earth: Products Help Gardeners Go Greener
Pesticides and fertilizers can easily disperse and wind up where you don't want them. Watch as SafeLawns.org founder Paul Tukey stops by Jorge Ribas' backyard and gives him some tips on eco-friendly gardening in this Discovery Channel video.
Earth: Signs of Climate Change in Alaska
If climate change is evident anywhere in the United States, it's in Alaska. Kasey-Dee Gardner spent a week in the arctic state to see for herself what's happening. Check out this Discovery Channel video to see what she learned.
Earth: Sports Stadium Strives for Sustainability
The University of Minnesota is striving to build the most environmentally friendly major sports stadium in the country. Watch as Kasey-Dee Gardner explains how they are doing it in this video from Discovery Channel.
Earth: Swedish Town Fuels Clean Energy
Vaxjo, Sweden has created a clean energy plan that they hope will one day make them fossil fuel free. Until then, the town is focusing on biogas, woodchips and ethanol. Learn more about fossil fuel addiction in this Discovery Channel video.
Earth: Undersea Eruption Now in Stereo
What lives 1,800-feet underwater, spews molten rock and sounds like a rumbling tractor trailer? The erupting Brimstone Pit in the North Pacific, recently recorded by NOAA. Take a look at this video to learn more.
Earth: Urban Agriculture Blooms
In the heart of the city, produce is being grown in the most unlikely place. Watch as Discovery News' Matt Danzico takes a tour through New York City's sustainable agriculture barge.
Earth: Urban Farms Grow Up
In this video, Discovery's Matt Danzico investigates vertical farming, an agricultural concept aimed at growing food and raising animals in skyscrapers in city centers.
Earth: What's an Ocean Garbage Patch?
How much trash is in our oceans? And does it look more like a floating landfill or a plastic soup? Anna Cummins, co-founder of the 5 Gyres Project, gives Jorge Ribas the facts about her recent trip into the Atlantic Garbage Patch.
Earth: Yellow Taxi Cabs Go Green
In this video, Kasey-Dee Gardner rides along to find out how hybrid taxi cabs are changing the roadways. Check out this clip to learn more about the new wave of taxi cabs hitting the roads.
Energy Policy: Combating Global Warming
John Hofmeister, President of Shell Oil Corp., addresses the issue of global warming. Learn more about global warming in this video.
Exploring Time:Global Warming and the Ocean Belt
On The Science Channel's "Exploring Time," learn how global warming is effecting the ocean conveyor belt in the Atlantic.
Focus Earth: Denmark's Model of Sustainability
Denmark is the perfect location for the UN Climate Summit. Meet the people of one of the most sustainable countries on the planet.
Focus Earth: Hurricanes
Focus Earth looks at the dangers of extreme hurricanes.
Focus Earth: Warming and Weather
Focus Earth investigates the controversy over climate change and its impact on extreme weather.
Fooled by Nature: Polar Bear's Body Insulation
On Animal Planet's "Fooled by Nature", visit the icy wastelands of the Arctic with the polar bear. The polar bear can survive extreme icy conditions due to its insulating fat layer.
G Word Mountain Blanket
Planet Green's "G Word" heads to the Swiss Alps. Here, polypropylene blankets are used as a short term solution to global warming to help ski operators prevent snow from melting during the summer months.
G Word: Coral Bleaching
Learn more about a study to revitalize coral reefs in this clip from Planet Green's "G Word."
G Word: Emission Testing
"G Word" eco quizzer Lori Harfenist discovers who passed their emission testing and who failed to make the grade in this video from Planet Green.
G Word: Falling Rock Fence
An innovative new fence, made of flexible high tensile wire, can catch falling debris. Learn more about the rock fall fences in the Swiss Alps on Planet Green's "G Word."
G Word: Global Green
In this episode, SuChin Pak meets Matt Peterson, the CEO of Global Green, to discuss how big business is developing an eco-conscience. Check out this clip from Planet Green's "G Word" to learn more about big business and living green.
G Word: High Water Line
A New York artist paints the town with a new way to get the word out about rising sea levels in this video from Planet Green's "G Word" series.
G Word: Measuring the Rise and Fall of Sea Levels
Discover how the Ocean Surface Topography Mission satellite can track the rise and fall of sea levels and ocean temperatures-- all factors that help scientists predict climate change. Learn more with this clip from Planet Green's series, "G Word."
G Word: O Zone
How much do you know about the ozone layer? See how you stack up against unsuspecting passersby in Portland, Oregon with a quiz from Planet Green's "G Word" correspondent, Lori Harfenist.
G Word: Protecting the Ozone
On Planet Green's "G Word," learn all about ozone as correspondent Lori Harfenist hits the streets of Portland with an environmental quiz.
G Word: The Sun
On Planet Green's "G Word," discover the role of the sun in shaping climate patterns and life cycles on earth.
Giant Carbon Dioxide Vacuums
Watch this video about giant carbon dioxide vacuums on HowStuffWorks. Could big machines that soak up carbon dioxide be part of the solution to global warming? One company thinks its giant carbon dioxide vacuums can help clean the greenhouse gas out of th
Global Warming Conspiracy Theories
Global warming has historically been a controversial topic. Today mainstream scientists and politicians still debate the potential consequences of the phenomenon. But what do conspiracy theorists think about global warming? Tune in and find out.
Go Green: Eco Insulation
Join Green citizen Andrew as he talks about proper insulation. Brought to you by the Discovery Channel.
Go Green: Home Energy Management
What you can do to lower energy costs and reduce waste. Brought to you by the Discovery Channel.
Go Green: Home Energy Plan
A big part of the green movement is implementing an efficient home energy plan. Learn more by checking out this HowStuffWorks video.
Green Gadgets: Garden Glo
The Garden Glo is a multipurpose planter and garden light that runs on solar power. Learn more about the Garden Glo in this HowStuffWorks video.
Green Gadgets: I Control
The I Control is a home power monitoring system that lets you control power use from your cell phone or any computer.
Green Gadgets: THE KILL A WATT
There are electric vampires in your home that feed off your power. Learn how the Kill A Watt can stop the bleeding in this video from the Discovery Channel.
Green Partners: National Wildlife Federation
Can you imagine a world without wildlife? Together we can confront global warming and conserve our precious wild places. Learn about the National Wildlife Federation in this video from Planet Green.
Green Shaman: Again From The Tap
From the series Green Shaman, Phil learns that just because his water is pure it is still not green.
Green Shaman: Greeno Vino
From the series Green Shaman, Bear tells Phil, it's not just what you eat or drink, but far it travels to get to you.
Green Shaman: Pedal Of Honor
From the series Green Shaman, Spirit Bear stops Phil from making the wrong transportation choice.
Green Shaman: Power Nap
Bear gets Phil to turn off all the gadgets sucking the power from the Earth.
Green Shaman: Shirt's So Good
Phil needs to get his act together and stop wearing cloths made from poisonous dyes.
Green Shaman: Smells Like Green Spirit
From the series Green Shaman, Shaman Phil gets a lesson on the high price of body odor from his spirit guide Bear.
How Greenhouse Gases Work
Watch this user-submitted video about how greenhouse gases work on HowStuffWorks.
How Polar Ice Caps Work
If the polar ice caps melted, you would definitely notice the difference. Learn what would happen by checking out this HowStuffWorks video.
International Polar Year Research Project
Watch this NASA video to see why some scientists are predicting that the polar ice shelves may be gone by 2040. The research project is studying the full annual life cycle of both north and south poles.
John Doerr on Global Warming at TED
Watch this video showing John Doerr talk about global warming on HowStuffWorks. John Doerr, partner in the venture capital firm Kleiner Perkins Caufield & Byers, discusses the global climate crisis and global warming. See how John Doerr is helping to curb
Planet 100: Battle of the Warming Titans
It's ozone versus carbon- what molecule is the worst villain in the global warming crises, Sarah Palin blogs her demand for more oil exploration, and application that calculates your Co2 savings when you unplug on today's Planet 100.
Planet 100: Carbon Markets Collapse
Europe's carbon exchange suspends trading, Leonardo DiCaprio test the limits of the new Tesla electric car, and the National Magazine Awards go to story on coal mining .
Planet 100: Check the Climate Scoreboard
A new climate scoreboard tallies the pledges of world leaders, giant tree puppets invade Copenhagen and billboards depict apologetic world leaders in 2020.
Planet 100: Climate Celebrities
Big name celebrities descend on Copenhagen, a dramatic walkout from the climate conference and China's gigantic sundial on today's Planet 100.
Planet 100: Climate Friendly Contraception
Today's stories include climate-friendly contraception, exclusive reporting from Copenhagen and the Golden Arches turning green.
Planet 100: Climate Summit
Copenhagen begins, world newspapers unite and London takes to the streets.
Planet 100: Copenhagen Accord In & Out, Holy Power
What's exactly in (or out) of the Copenhagen Accord and Holy Power - energy under a Helsinki cathedral. This is today's Planet 100.
Planet 100: Copenhagen Report
A group of Indigenous leaders led a protest to the door of the American Embassy in Copenhagen today, and the U.S. government announced plans to fast track green tech patent applications.
Planet 100: Ebooks Topple Paper
Ebooks outsell good old paper, Microsoft unveils Environmental Atlas, and 40,000 gallons of diesel fuel spilled into the Yellow River.
Planet 100: Following the Climate Money
Tracking the flow of climate money, today's Copenhagen update and a high tech pavilion made from unusual materials on this installment of Planet 100.
Planet 100: Global Sun Block
Geo-engineering options to block the sun? Climate change polls shows that less than half of Americans say they are "somewhat" or "very worried" about global warming and finally The UN Department hosts a green fashion show.
Planet 100: Global Warming Doesn't Exist
Weather forecasters turn into global warming deniers, more and more baby whales are dying and a sustainable movie going experience?
Planet 100: Have You Seen My Island?
Case solved! Islands are disappearing due to global warming, the EPA is looking to block mountain top removal and the world's best known landmarks turn off the lights.
Planet 100: Japan Tops Sustainability Index
Update from Copenhagen, IDC names Japan as the country with greatest potential to reduce greenhouse gases, and a schoolboy recognized by climate leaders.
Planet 100: The "Green Pope" calls for Urgent Action
Pope Benedict also known as the "Green Pope" called for urgent action on climate change, Al Gore announced his post-Copenhagen plan, and MIT reinventing the wheel.
Planet 100: The Climate Summit Concludes
A Professor at Brown University has developed a database that tracks development money, the Vatican installs solar panels, and Japan came in first place on IDC Sustainability Index.
Planet 100: The Sweet Smell of CO2
An increase of CO2 in the air causes plants to release more fragrance, Katherine Goldstein reports on the Eat In Challenge, and a new study shows different views on climate change.
Planet 100: What's Your Global Warming Sign?
Apple shareholders vote down sustainability, laughing at South Dakota lawmakers, and Current not so much: All today, on Planet 100.
Polar Bear and Arctic Fox
From the archives of Discovery: Much like the polar bear, the arctic fox has adapted to harsh life in the north pole. Learn more about polar bears and arctic foxes.
Polar Bear Clan
From the archives of Discovery: Although polar bears are usually solitary creatures, they can become a clan if a female gives birth to multiple cubs. Learn more about polar bear society in this video.
Polar Bear Cub
From the archives of Discovery: Polar bear cubs have to stick close to their mother as they learn the ropes of Arctic life. Learn more about polar bears in this video.
Polar Bear Cub 2
From the archives of Discovery: Polar bear cubs have to stick close to their mother as they learn the ropes of Arctic life. Learn more about polar bears in this video.
Polar Bear Cub 3
From the archives of Discovery: Polar bear cubs have to stick close to their mother as they learn the ropes of Arctic life. Learn more about polar bears in this video.
Polar Bear Cub 4
From the archives of Discovery: Polar bear cubs have to stick close to their mother as they learn the ropes of Arctic life. Learn more about polar bears in this video.
Polar Bear Cub Dies
From the archives of Discovery: In the harsh Arctic conditions, not every cub lives to adulthood. Learn more about the Arctic, polar bears, and mortality in this video.
Polar Bear Digs
From the archives of Discovery: Polar bears have adapted several unique and interesting behaviors to survive in the Arctic. Learn more about polar bears in this video.
Polar Bear Digs 2
From the archives of Discovery: Polar bears have adapted several unique and interesting behaviors to survive in the Arctic. Learn more about polar bears in this video.
Polar Bear Feeds
From the archives of Discovery: Polar bears are skilled hunters, and they have to be in order to survive. Learn more about polar bears and hunting in this video.
Polar Bear Feeds 2
From the archives of Discovery: Polar bears are skilled hunters, and they have to be in order to survive. Learn more about polar bears and hunting in this video.
Polar Bear Feeds 3
From the archives of Discovery: Polar bears are skilled hunters, and they have to be in order to survive. Learn more about polar bears and hunting in this video.
Polar Bear Hunts
From the archives of Discovery: Polar bears are skilled hunters, and they have to be in order to survive. Learn more about polar bears and hunting in this video.
Polar Bear Hunts 2
From the archives of Discovery: Polar bears are skilled hunters, and they have to be in order to survive. Learn more about polar bears and hunting in this video.
Polar Bear Rests
From the archives of Discovery: Check out this polar bear, resting after a long trek to hunt seals. Learn more about polar bears and hunting in this video.
Polar Bear Rests 2
From the archives of Discovery: Check out this polar bear, resting after a long trek to hunt seals. Learn more about polar bears and hunting in this video.
Polar Bear Rests 3
From the archives of Discovery: Check out this polar bear, resting after a long trek to hunt seals. Learn more about polar bears and hunting in this video.
Polar Bear Sleeps
From the archives of Discovery: Even the Arctic's top predator has to take time off for a nap, now and then. Learn more about polar bears and the Arctic in this video.
Polar Bear Threatened With Extinction
The U.S. Fish and Wildlife Service formally proposed to list the polar bear as "threatened with extinction" under the Endangered Species Act. This follows a multi-year court battle by environmental groups to protect the bear from the impacts of global war
Polar Bear Trek
From the archives of Discovery: In the desolate Arctic region, polar bears must cross wide areas of land and ice as they hunt for prey. Learn more about polar bears and the Arctic in this video.
Polar Bear Trek 2
From the archives of Discovery: In the desolate Arctic region, polar bears must cross wide areas of land and ice as they hunt for prey. Learn more about polar bears and the Arctic in this video.
Polar Bear Trek 3
From the archives of Discovery: In the desolate Arctic region, polar bears must cross wide areas of land and ice as they hunt for prey. Learn more about polar bears and the Arctic in this video.
Polar Bear Trek 4
From the archives of Discovery: In the desolate Arctic region, polar bears must cross wide areas of land and ice as they hunt for prey. Learn more about polar bears and the Arctic in this video.
Power Nap
Bear gets Phil to turn off all the gadgets sucking the power from the Earth.
Project Earth: Jakobshavn glacier
Discover what is really happening to the largest ice sheet in the world in this video from Discovery Channel's "Project Earth."
Questions About Climate Change
Questions about climate change are answered by researchers.
Sally Ride on Climate Change
Watch this NASA video to learn about climate change from Dr. Sally Ride, the world's first female astronaut. She remembers the first time she saw Earth's atmosphere from the Space Shuttle. Dr. Ride also comments on how the Earth's climate works.
Science of the Deep: Coral Reefs and Global Warming
The aquanaut team sets out on a 10-day underwater mission to study the effects of global warming on coral reefs in this clip from The Science Channel's "Science of the Deep."
Science of the Deep: Trapping Coral Larvae
A team of aquanauts attempt to capture coral larvae In this clip from The Science Channel's, "Science of the Deep."
Scientists Work to Understand Global Warming
Scientists work to understand global warming and the changing climate.
Shirt's So Good
Phil needs to get his act together and stop wearing cloths made from poisonous dyes.
Sir Martin Rees Talks About Earth
Watch this video showing how the Earth works on HowStuffWorks. Cosmologist Sir Martin Rees explains why the 21st century is a unique and pivotal century not just for mankind but for the entire planet. Learn about how the Earth works in this video from TED
Survival and Diversity on Tattoosh Island
Watch this video about extinction on HowStuffWorks. University of Chicago ecologists Cathy Pfister and J. Timothy Wootton journey to a remote island in the Pacific Northwest to examine causes and effects of species extinction. Copyright 2005 The Universit
Tech: Where Does Our Garbage Go?
Researchers at the Massachusetts Institute of Technology have figured out how to track trash. They are doing this to get a better sense of people's disposal habits, which they hope will improve recycling efforts.
Tech: Ze-Gen Creates Zero Emissions
The renewable energy company Ze-gen is converting construction waste into near zero-emissions energy. Discovery News finds out how they're doing it.
Technically Measuring Global Warming
At the Scripps Institute in La Jolla, California, researchers work to accurately measure the amount of carbon currently in Earth's atmosphere. It's a complicated process and uses both modern tools and some that are more antiquated to get the job done.
The Big Thaw
Watch this NASA video to learn about the polar ice caps. The change of the Arctic sea ice is alarming scientists because it is being reduced very fast. In two years the polar ice cap has been reduced by the equivalent size of Texas and California.
Thomas L. Friedman Reporting: 9/11 or 11/9
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: A Rationale
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Accent Neutralization
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Global Warming
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Hummers Vs. Hybrids
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Moving Through Walls
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Students Speak Out
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: The Greens
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: The Next Generation
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Uncontrolled Experiments
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: Walls Solve Nothing
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Thomas L. Friedman Reporting: What Goes Around...
Tune in and watch as Thomas L. Friedman, author of "The World is Flat," takes a global look at the issues facing the world today.
Tierney Thys Talks About Global Warming
Watch this video about global warming and it affects on sea life on HowStuffWorks. Marine Biologist Tierney Thys, takes us into the world of the Mola Mola, or giant sunfish, to help us understand life in the open sea and how global warming creates problem
Treehugger TV 2011: Climate Skeptics vs. Deniers
With the growing number of discussions about the climate, the terms "Skeptic" and "Denier" are being used often. TreeHugger TV explains climate change for all to understand.
Treehugger TV: Cherry Picking the Facts
There's a scientific consensus that humans are causing global warming. Is this statement true?
Treehugger TV: Denying Global Warming
An understanding of climate change is based on many lines of evidence, but what happens when "Climategate" takes over?
Treehugger TV: Denying the Evidence
Do you know what to do when "Climate Deniers" try to throw evidence at you? TreeHugger TV has a few pointers that could help.
Treehugger TV: Impossible Expectations
Science is 100% settled, it deals with hypotheses and assumptions. However, some try to argue that global warming isn't real just because there is no way to "prove" that it is.
Treehugger TV: Logical Fallacies
Climate change deniers use many techniques to justify that climate change isn?t happening, logical fallacies are one way that they attempt to prove their point.
Understanding: Antarctica
On TLC's series "Understanding," Antarctica is the coldest, driest and iciest place on earth. Scientists visit Antarctica to take ice samples of the ice to see if global warming is affecting the glaciers.
Vehicle Design Summit at MIT: The Finished Products
Nine weeks of hard work comes to fruition and the four Vehicle Design Summit cars are revealed.
Vehicle Design Summit at MIT: The Fuel Cell Team
A tour of team Fuel Cell hydrogen powered vehicle design at the Massachusetts Institute of Technology (MIT) Vehicle Design Summit.
What is Global Warming?
What is global warming? Find out in this HowStuffWorks video!
What's happening to the bees?
Recently, U.S. beekeepers have reported a disturbing increase in hive failures. Experts are still trying to learn what's driving the collapse of these hives -- but some conspiracy theorists claim the government knew about this before it hit the news.
_Planet 100: Icelandic Haven for Journalists
Iceland lures investigative journalists, Katherine Goldstein reports on climate deniers, and Puma has a solar phone for the outdoorsy type.