Scientists Solve 66-Million-Year Climate Mystery Behind Earth's Shift From Greenhouse to Ice Age Scientists have solved a 66-million-year-old puzzle explaining how Earth shifted from a sweltering, tropical greenhouse into the frozen planet we know today. New research suggests that a sharp decline in oceanic calcium levels following the extinction of the dinosaurs played a decisive role in cooling the planet. Sharp Drop in Ocean Calcium After Dinosaur Extinction The international study, led by researchers at the University of Southampton , found that calcium concentrations in seawater fell by more than 50% over the past 66 million years. Published in the Proceeding of the National Academy of Sciences , the findings indicate that this chemical change may have removed vast amounts of carbon dioxide from the atmosphere, weakening the greenhouse effect and triggering long-term global cooling. Related climate, Earth and Space science coverage Seawater Chemistry as a Driver of Cl...
Explore the causes of climate change and their impact on our planet. Understand the factors contributing to global warming, such as greenhouse gas emissions, deforestation, and industrial activities. Discover the scientific research and evidence behind climate change and gain insights into the urgent need for collective action to mitigate its effects. Stay informed about the latest developments and solutions to address this critical environmental issue.