Katharine Cashman via imaggeo.egu.eu under CC BY 3.0 Long before the emergence of dinosaurs—during the Cryogenian Period ... “Even ancient glacial activity set off chemical chain reactions ...

Hypotheses include a sequence of global glaciation events, known collectively as "Snowball Earth," which occurred during the Cryogenian period more than 635 million years ago. "These tiny and ...

Earth's last ice age ended around 11,700 years ago and a new study predicts the next one should be 10,000 years away. But the researchers say record rates of fossil fuel burning that are ...

However, human activities — especially greenhouse gas emissions — have disrupted this cycle, making it unlikely that we’ll see another glaciation anytime soon. These findings not only help us ...

Glaciers serve as the largest reservoirs of frozen freshwater on Earth. They primarily form when massive ice sheets from the Arctic and Antarctic break into smaller sections. Additionally ...

Earth's history is a roller-coaster of climate fluctuations, of relative warmth giving way to frozen periods of glaciation before rising up again to the more temperate climes we experience today. What ...

Kirkland and researchers the University of Portsmouth in England and St. Francis Xavier University in Canada chemically analyzed crystals in rocks from Earth's Cryogenian period. Earth was so ...

Into the fridge According to the Snowball Earth hypothesis, Earth underwent at least two extreme global glaciations during the Cryogenian. Traces of these events can be seen across the globe in ...

Aerial photograph showing flooding in the Traverse Gap, the former southern outlet of Glacial Lake Agassiz and the source of River Warren. Ice-covered Lake Traverse (Mde Hdakiŋyaŋ), a natural ...

A more insightful view of iron in glacial systems requires consideration of iron speciation and mineralogy, the potential for iron minerals to undergo weathering in ice-water environments, the impact ...