Snowball

... and the ones that exist may be from very different environments well-separated on the planet, especially with the "recent" end of the Snowball Period. The Cambrian Explosion is at least partially an artifact of that problem. I don't see why the appearance of vertebrates during that ...

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... earth... things (organic molecules) just kept on forming, getting bigger and bigger, getting more and more complex... it really does sound like a snowball going down a hill getting larger and larger but yes, this is the way i understand the features of the current theory of the origin of life.

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... the power of one. Just talk about it every chance you get, write an article for your school paper. you would be surprised that it really has a snowball effect. There was a good article in national geographic I ecently read about coral. But I get depressed when I read about their destruction, ...

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... argue for a planet that was not too hot. Recently, we have learned that there may have been some important, yet brief climatic excursions (the Snowball Earth Hypothesis), but on the whole, most paleoclimatologists consider that the climate has remained relatively stable over the long time periods. ...

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