that carbon dioxide (CO₂) played a central role in this huge climatic transition. The Late Paleozoic ice age has long been a climate enigma. Atmospheric CO₂ estimates for this period vary ...
This NASA Mars Reconnaissance Orbiter image, acquired on May 13, 2018, during winter at the South Pole of Mars, shows a carbon dioxide ice cap covering the region and as the sun returns in the spring, ...
Mars has only a thin, tenuous atmosphere, and most of it (95%) is carbon dioxide. When Martian winter ... eruptions create dark regions under the ice which look like spiders.