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| Description: Over the last 540 million years, Earth was mostly warmer than it is now. Earth’s geologic record shows evidence of past climates both colder and warmer than today. These past climates are related to interactions involving geosphere processes, greenhouse gas cycles, the distribution and size of continents and oceans, and variations in the amount of solar radiation Earth receives. Picture Stats: Views: 497 Filesize: 110.84kB Height: 600 Width: 1402 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=22521 |