Changes in Earth's orbit may have triggered ancient warming event - EurekAlert

Changes in Earth’s orbit that favored hotter conditions may have helped trigger a rapid global warming event 56 million years ago that is considered an analogue for modern climate change, according to an international team of scientists.
image: Victoria Fortiz (right), then a graduate student at Penn State, and Jean Self-Trail, a research geologist at the U.S. Geological Survey, work on a core sample from the Howards Tract site in Ma… [+5466 chars] Read More