Laurentide ice reached minimum size 3,600 years ago
A study reveals the Laurentide Ice Sheet reached its minimum size around 3,600 years ago and began re-expanding roughly 2,000 years ago. Human-induced warming around 1960 reversed this expansion.
- Field
- climate and environment
- What they did
- Researchers studied the Barnes Ice Cap and found that the Laurentide Ice Sheet reached its smallest size about 3,600 years ago, then began re-expanding roughly 2,000 years ago.
- Why it matters
- This discovery indicates that a new ice age might have started before 1960, but was reversed by human-caused climate warming.
#ice sheet#glaciation#climate change#laurentide ice sheet#barnes ice cap



