Geophysicist and geologist Tanya Atwater talks about plate tectonics as a mechanism by which Earth's interior sheds the tremendous heat that builds
Subject: heat
Transcript: In its most fundamental sense, what plate tectonics does is Gets heat out of the inside of the earth. It's getting hotter and hotter in there all the
The movement of heat around the globe is one of the most critical components of Earth's climate system. The circuits of air that move as part of the
Subject: heat
Transcript: [narrator:] the movement of heat around the globe is one of the most critical components of earth's climate system. the driving force behind this
Scientist and climate change expert Michael Oppenheimer discusses the evidence confirming global warming and the expected impact, which he predicts will be enormous.
Subject: heat
Transcript: long, long time, Decades to centuries. Drifts around the world. It traps heat that would otherwise escape into space, That kind of invisible blanket is
El Nino is marked by the appearance from time to time of warm water in the central and eastern Pacific Ocean. The end result of the evaporative process that follows is excessive rainfall.
Subject: heat
Transcript: keep blowing. The water piles up. It heats up in the western part of the pacific. But then, once in a while -- it could be every two years apart, It
Most scientists believe heat and convection probably play a major role in plate tectonics. And, yet, many questions remain.
Subject: heat
Transcript: [narrator:] geologists recognize that heat generated from earth's interior is critical to plate tectonics. [stock:] heat plays a role in plate