By Smithsonian.com | Smithsonian Magazine Sometime in the near geological future, the landscape of life on earth as we know it will be transformed. It’s a mass extinction, and it’s only happened five times before in Earth’s history. There have been severe ice ages, perplexing losses of oxygen from our oceans, massive volcanic eruptions, meteor impacts. … Continue reading Why Should Humans Care if We’re Entering the Sixth Mass Extinction?