Climate change and their impact on our planet

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...

Southern Ocean 'Burp' May Reverse Global Cooling, Study Warns Edited by: FSNews365 Climate Desk Oceans: The Silent Guardians of Global Warming The world's oceans have played a vital role in curbing global warming, absorbing roughly a quarter of human-produced carbon dioxide and over 90% of the excess heat it creates. Numerous studies, including those by the Intergovernmental Panel on Climate Change (IPCC), have explore how oceans help offset rising emissions and global warming. Yet, few have considered the reverse scenario — how oceans might respond if emissions and atmospheric heat were to decline due to net negative emissions. (For a detailed look at global oceanic carbon trends and their environmental implications, visit Earth Day Harsh Reality .) Investigating the Southern Ocean's Role in Climate Recovery In a recent study published in AGU Advances, Ivy Frenger and her team investigated the potential changes in the Southern Ocean following over a century of human-i...

Scientists Identify Missing Link in Earth's Carbon Cycle—Could Global Warming Trigger the Next Ice Age? By Fasi Uddin , 26 September 2025 In a breakthrough discovery that could reshape how we climate change, researchers at the University of California, Riverside (UCR) have uncovered a missing factor in Earth's carbon cycle models . Their study suggests that the same warming crisis gripping the planet today might eventually tip the climate into a new ice age , underscoring the delicate balance between human-driven carbon emissions and natural planetary processes. How Rock Weathering Became Earth's Natural Thermostat For decades, scientists believed that rock weathering acted as the planet's thermostat. Rainfall absorbs carbon dioxide (CO ₂ ) from the atmosphere, trickles onto silicate-rich rocks such as granite and gradually breaks them down. The dissolved minerals then flow into rivers and oceans, where they react with calcium to form seashells and limestone reefs...