A continuous record of the past 66 million years shows natural climate variability due to changes in Earth’s orbit around the sun is much smaller than projected future warming due to greenhouse gas emissions
New research published in Science argues that environmental impacts from massive volcanic eruptions in India did not play a direct role in the mass extinction that killed the dinosaurs. It was all about the impact of an asteroid. The discovery was made by climate scientist James Zachos and earth science alumni Donald Penman, Richard Norris, and Peter Lippert.
Original story from UCSC Newscenter.