Ice Age Wildlife - Prehistoric Kingdom [4K]

Did you know that sea ice has an age? In this dataset, colors show the age of sea ice floating in the Arctic Ocean. The darkest blue areas on the map show seasonal or first-year ice, which formed during the most recent winter. White areas show where ice is more than four years old. Since the late 1900s, Arctic sea ice has thinned, and less sea ice has persisted in the Arctic over multiple melt seasons. The trend toward younger, thinner sea ice over time reflects warming temperatures in the Arcti

SEA LEVEL RISES Over the past 100,000 years, Earth’s sea levels have risen and fallen naturally with the advance and retreat of massive ice sheets. These shifts, driven by glacial cycles, often spanned tens of meters. What makes today’s rise stand out is the speed. Modern sea level changes are happening much faster than most natural cycles in the geologic record. Studying both long-term patterns and present-day trends helps us understand the balance between natural processes and human influence

NASA has shared a visualisation that shows the weekly sea ice age from 1984 to 2019. Over the past few years, one of the biggest changes in the Arctic region has been the decline in 'perennial sea ice', i.e. the thickest ice and the one that doesn't melt during the summer melt season. https://bit.ly/2lV4JYD | Euronews English