Browsing Tag
Ice sheet
2 posts
Sea Ice May Have Facilitated the Arrival of North America’s First People 24,000 Years Ago
The arrival of humans in North America is a contentious topic in archaeology. Traditionally, the prevailing theory suggests that people migrated through an ice-free corridor that opened between ice sheets around 13,000 years ago.
How Marine Bacteria and Atmospheric Rivers Help Create Ice Clouds?
To comprehend the process of cloud formation in polar regions, gaining insights into the impact of solar radiation on polar ice caps is crucial. Unfortunately, current numerical models face challenges in accurately simulating ice clouds. A recent study by Japanese researchers addresses this issue by leveraging real-world observations and climate data. Their findings reveal that marine bioaerosols, transported by streams of warm, moisture-laden air from higher latitudes, play a significant role in the formation of ice clouds over the high latitude region of the Southern Ocean.