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Storms: Downdrafts and Hail

Related Article: Learn more about natural disasters.

Falling rain can create a type of wind called a downdraft. Hail is formed in clouds when water vapor freezes.
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Weather: Reversing Global Warming

Weather: Reversing Global Warming (2:12)

Reversing global warming is difficult because so much of the global economy is based on environmentally unfriendly products, such as oil and gas.

Exploring Time: Ocean Glider

Exploring Time: Ocean Glider (2:48)

On the Science Channel's "Exploring Time," learn about a glider that is used to study the ocean and how the ocean relates to climate.

Why? Tell Me Why! Alaska Oil

Why? Tell Me Why! Alaska Oil (1:30)

After spending a week in Alaska, Discovery News' Kasey-Dee Gardner wanted to find out why the state is so abundant in that resource.

Energy: Smog

Energy: Smog (0:45)

Smog can cause serious lung and breathing disorders. In certain atmospheric conditions, emissions from smokestacks and automobiles create smog.

Discovery Wonders of Weather: Lightning Phenomena

Discovery Wonders of Weather: Lightning Phenomena (5:05)

Lightning will strike anything that stands high above the ground. Trees are a favorite target. Watch a lightening video at HowStuffWorks.

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100 Greatest Discoveries: Plate Tectonics

100 Greatest Discoveries: Plate Tectonics (2:05)

On The Science Channel's "100 Greatest Discoveries," Bill Nye and geologist, Dr. Neal Driscoll, visit the California coastline where the Pacific and North American plates collide to help explain the phenomenon and effects of plate tectonics.

100 Greatest Discoveries: Hydrothermal Vents

100 Greatest Discoveries: Hydrothermal Vents (2:30)

Underwater hydrothermal vents are one of the biggest biological discoveries ever made. Learn about this astonishing garden of marine life 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."

100 Greatest Discoveries: Earth's Atmospheric Layers

100 Greatest Discoveries: Earth's Atmospheric Layers (1:19)

Weather and climate studies got their start with meteorologist Leon Teisserenc de Bort's discovery of the Earth's layers. Learn more about the Earth's layers on The Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: The Center of the Earth

100 Greatest Discoveries: The Center of the Earth (1:27)

Learn about the center of the Earth on The Science Channel's "100 Greatest Discoveries."

Kapow Superhero Science: Controlled Lightning

Kapow Superhero Science: Controlled Lightning (2:18)

What if we could control lightning and use the electrical powers? Learn more on The Science Channel's "Kapow! Superhero Science."

100 Greatest Discoveries: Burgess Shale Discovery

100 Greatest Discoveries: Burgess Shale Discovery (2:58)

Researcher Charles Walcott accidentally stumbled across this historical find that, once fully executed, contained over 65,000 specimens. Learn about the unprecedented discovery of the Burgess Shale on the Science Channel's "100 Greatest... More »

100 Greatest Discoveries: Radiometric Dating

100 Greatest Discoveries: Radiometric Dating (2:54)

Bertram Boltwood's study of decaying radioactive uranium in rock formations provided insight into calculating the age of the Earth. Learn more about radiometric dating on the Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: Geological Change

100 Greatest Discoveries: Geological Change (2:51)

On the Science Channel's "100 Greatest Discoveries," watch as Bill Nye examines Charles Lyell's study of rock formations and how they revealed that the process of geological change was slowly developed over time.

100 Greatest Discoveries: Earth's Magnetic Field

100 Greatest Discoveries: Earth's Magnetic Field (2:34)

Bernard Brunhes' study of volvanic eruptions led to the discovery of the Earth's magnetic field reversal. Learn more about Brunhes' findings on the Science Channel's "100 Greatest Discoveries."