Over hundreds of thousands to millions of years, the change in gene frequency has altered the physical aspects of the species as a whole. (religion.blogs.cnn.com)
The paper discusses reconstructions of global deep ocean temperature, sea level, surface temperature, and climate sensitivity going back thousands to millions of years. (skepticalscience.com)
Even long - term climate cycles are short relative to geologic time, where «we're talking about hundreds of thousands to millions of years for plate tectonics,» Olive says. (sciencemag.org)