Info: All over the globe people are trying to decrease their reliance on fossil fuels and endorse sustainable energy alternatives. In some parts of the world - China, Europe and Brazil - energy novelties are altering the way we live, and the US military is trying to reduce its carbon footprint. In this documentary, we'll see how we know that Earth is heating up, and why, and find out what science advise us about clean, green energy possibilities.
Richard Alley is a geologist at Pennsylvania State University, but his inquiries made him travel all over the planet, from Greenland to Antarctica. He's captivated by how our climate has seriously and frequently transformed our planet, from times with ice in all places to no ice on the planet....
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