/ Paleoclimate Content for °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û×ßÊÆͼ en /climate/news/carbon-climate-change-and-ocean-anoxia-ancient-icehouse-world <p><span><span><span><span><span><span><span><span>A new study describes a period of rapid global climate change in an ice-capped world much like the present — but 304 million years ago. Within about 300,000 years, atmospheric carbon dioxide levels doubled, oceans became anoxic, and biodiversity dropped on land and at sea. </span></span></span></span></span></span></span></span></p> May 02, 2022 - 12:00pm Andy Fell /climate/news/carbon-climate-change-and-ocean-anoxia-ancient-icehouse-world /blog/freezing-forests-and-icehouse-climate-pangaea <p>A new study by scientists at Baylor University, °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û×ßÊÆͼ and others considers how tolerance of plants to freezing temperatures affected forest cover and hydrology during the Pennsylvanian period, roughly 340 million to 285 million years ago during the Paleozoic Era.</p> October 21, 2021 - 3:58pm Andy Fell /blog/freezing-forests-and-icehouse-climate-pangaea