BBC Earth: The Biography / BBC Earth: The Biography 2007 / BBC:地球全集-在线电影免费观看

Story about BBC Earth: The Biography / BBC Earth: The Biography 2007 / BBC:地球全集

The history of our planet is epic from its birth out of cosmic rubble to the unique complex of land,...
The history of our planet is epic from its birth out of cosmic rubble to the unique complex of land, sea, atmosphere and life we know now. See how water was transported to Earth's surface inside millions of meteors. Through CGI re creations, meet the inhabitants of Earth over the ages, from slimy mats of algae to the great dinosaurs and the ancestors of mammals and humans.　　
Episode 1: Volcanoes

Volcanoes are one of natureˇs most awesome and destructive forces, but they
are also the life force and architect of our planet. They can raise up great
mountains and create new land, or they can level cities and destroy entire
civilizations. They provide a glimpse of the power of Earthˇs internal heat
source, without which it would have become a dead planet millions of years
ago. In this episode, Iain takes us on a journey to some of the most dramatic
places on Earth, starting in Ethiopia

Episode 2: Atmosphere

The atmosphere is Earthˇs protective layer, cloaking us in a warm, oxygen-rich
embrace and shielding us from the cold hostility of space. It acts as a natural
greenhouse, keeping the Earth 51 degrees Fahrenheit warmer than it would
otherwise be. Yet the atmosphere is also full of contradictions. Itˇs immensely
powerful but at the same time highly sensitive. Itˇs destructive, yet it
shelters us. It was created in part by the planetˇs first organisms, and it
continues to be essential for life.

Episode 3: Ice

Our icy adventure begins with host Dr. Iain Stewart in the Alps, where he goes
down an ice crevasse to show viewers how snowfall develops into expansive
masses. Then, we see how ice can shape the earth's topography giving rise to
features like Yosemite National Park and Manhattan Island, in NY. Finally,
journey to Greenland and see how ice sheets and glaciers are melting at a
phenomenal rate that is likely to accelerate over the coming years, changing
the world as we know it.

Episode 4: Oceans

Earthˇs oceans help make our planet different from every other planet in the
solar system. As far as we know, no other place is the right temp for liquid
water, the most essential ingredient for life to exist. The oceans are Earthˇs
primary stabilizing force, and their immense power helps to shape the appearance
and behavior of the entire planet and everything living on it. And they are
also the planet's great unknown - their deepest points have been visited less
than the surface of the moon.

Episode 5: Rare Planet

It has taken 4.6 billion years for the Earth to evolve from a barren rock into the
world we know today. Explore the forces beyond our planet that have determined
Earthˇs destiny -- forces of destruction and regeneration in the solar system
that created the planet and still protect it. And now the remarkable planet is
facing a new challenge: humankind. The question is, how will it survive?