Explore Our World

Season 1 Episode 855693

Our Planet Earth

Aired Unknown Feb 25, 2009 on BBC
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Episode Summary

Our Planet Earth
How much do we really know about greenhouse gases, why the dinosaurs disappeared and the delicate balance that sustains life on Earth? 65 million years ago one event led to the extinction of dinosaurs. Huge volcanoes erupted, filling the sky with green house gases and led to Global Warming. Today, the burning of fossil fuels is causing the same effect by releasing carbon dioxide into the atmosphere and thickening the greenhouse blanket around the Earth. Are the same factors that decimated the creatures of the Triassic Age threatening to push our species on Earth today to extinction?moreless

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