Earth was a giant snowball 700 million years ago, now scientists know why

EarthFollow 7.2K Followers Story by Eric Ralls • 20h Earth was a giant snowball 700 million years ago, now scientists know why© Provided by Earth Australian geologists have shared new findings on an extreme ice-age event that enveloped Earth in a snowball over 700 … Continue reading Earth was a giant snowball 700 million years ago, now scientists know why