Evolution has operated quietly on this planet for hundreds of millions of years, and will continue to do so long after there are no people left to not believe in it. (religion.blogs.cnn.com)
These plates shift over hundreds of millions of years, striking different continental configurations along the way. (eos.org)
Starting in the next century, atmospheric carbon levels could begin to approach those of hundreds of millions of years ago, and have their warming effect augmented by a brighter sun. (scientificamerican.com)