LifeOnly asteroids that hit a certain mineral trigger a mass extinction A comparison between geological records of asteroid impacts and mass extinctions suggests that only space rocks that strike an area rich in a certain mineral have a cataclysmic effect on life, no matter their size News
EnvironmentAll five of Earth's largest mass extinctions linked to global warming There have been five particularly large extinction events in Earth’s history, and for the first time all of them have been linked to global warming News