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Green Rally on Capitol Hill

Related Article: Learn more about green energy.

Witness the largest green lobbying day in the history of Washington DC.

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Discovery
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Biofilter with Earthworms

Biofilter with Earthworms (1:00)

Watch this video about biofilters with earthworms on HowStuffWorks. A company in Chile has developed an all-natural way to use earthworms to treat industrial waste. Learn about how earthworms can remove contaminants in water in this news video from... More »

Al Gore Talks at TED About Global Warming

Al Gore Talks at TED About Global Warming (16:57)

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... More »

Saving a Glacier with a Huge Blanket

Saving a Glacier with a Huge Blanket (1:38)

Watch this video about glaciers and global warming on HowStuffWorks. The glacier on the Zugspitze, Germany's highest mountain, is retreating. The Zugpspitze was 80 meters thick in 1910, but is now only 45 meters thick. So engineers are working hard... More »

Arctic College Studies Global Warming

Arctic College Studies Global Warming (1:20)

Watch this video about an arctic college studying global warming on HowStuffWorks. The Ben and Jerry Climate Change College was started by the well-known American ice-cream maker, the World Wide Nature Fund and Dutch polar explorer Mark Cornelissen,... More »

Bangledesh Farming Hero

Bangledesh Farming Hero (2:06)

Watch this video about Shykh Seraj, the Bangladesh farming hero, on HowStuffWorks. Farmers make up about 80 percent of the population in Bangladesh and almost everyone knows Shykh Seraj. See how farming technology works in this news video on... More »

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100 Greatest Discoveries: Shrinking Glaciers

100 Greatest Discoveries: Shrinking Glaciers (1:57)

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."

100 Greatest Discoveries: Global Warming and CO2

100 Greatest Discoveries: Global Warming and CO2 (1:52)

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."

The Cycle Series: The Nature of Oxygen

The Cycle Series: The Nature of Oxygen (0:52)

Two oxygen atoms bond together to form an oxygen molecule, and three oxygen atoms bond together to form an ozone molecule. Ozone at ground level is a pollutant, but high in the atmosphere it shields living things from the Sun's UV rays.

Global Warming: The Danger of Acceleration

Global Warming: The Danger of Acceleration (1:37)

We have increased the amount of carbon dioxide released into the atmosphere. Increased amounts of carbon dioxide in the atmosphere may cause unnatural global warming and other disastrous environmental changes.

History in the Making: Exxon Valdez Oil Spill

History in the Making: Exxon Valdez Oil Spill (1:29)

When an Exxon oil tanker hit a reef off the Alaskan coast, the resulting spill threatened to contaminate tens of thousands of miles of water and shoreline, killing countless numbers of species inhabiting those areas.

Wild Arctic: Warming Ocean Affects the Arctic Food Web

Wild Arctic: Warming Ocean Affects the Arctic Food Web (2:11)

The warming of the ocean is having a dramatic effect on the organisms that rely on the colder water of the Arctic. This impacts the food web.

Enviro Tacklebox 3: Commons Sense

Enviro Tacklebox 3: Commons Sense (20:26)

The fish in the ocean, the planet Mars, Antarctica and even space itself can be thought of as a "commons." In this program, join host Greg Grandy and the Enviro-Tacklebox student reporters as they investigate the concept of a "commons."

Enviro Tacklebox 1: The Pros and Cons of UV

Enviro Tacklebox 1: The Pros and Cons of UV (20:15)

Ultraviolet radiation can be both harmful and helpful. In this program, Greg Grandy explores the pros and cons of UV radiation.

Enviro Tacklebox 2: Your Burger and the World

Enviro Tacklebox 2: Your Burger and the World (20:00)

Focusing on the ubiquitous hamburger, this program explores the factors that affect our food choices and how science can help us make better decisions.

Enviro Tacklebox 2: Tackle Trash

Enviro Tacklebox 2: Tackle Trash (19:52)

In this video, follow our student reporters as they examine environmental issues brought about by the growing amounts of waste that our society generates. Viewers are introduced to noted garbologist Dr. William Rathje and the renowned Banana Slug... More »