Overview

• A new study suggests asteroid impacts could have triggered 'Snowball Earth' events, covering the planet in ice.
• The research, led by Yale University, used climate models to simulate asteroid impacts during various Earth climates.
• Findings indicate that in already cold climates, such impacts could lead to rapid global glaciation.
• Skeptics highlight the lack of geological evidence for such impacts coinciding with known glaciation periods.
• Despite the intriguing theory, the likelihood of a future 'Snowball Earth' due to asteroid impact is deemed low due to current global warming.