““Regardless of where they strike, large asteroids would boil seas, fill the air with dust and acidic compounds, and perhaps induce carbon dioxide to cook off out of the rocks and into the air, triggering a strong greenhouse effect, all of which in turn would change the world’s climate faster than living things could adjust to. Giant impactors could create enormous waves in the ocean and in the atmosphere that could upset weather patterns around the world for extended periods. Perhaps asteroids have also helped unleash Earth’s internal heat and caused subsequent volcanism.””
