Malthusian Catastrophe is when there are too many people and not enough resources. It was named after Thomas Malthus, an economist who wrote about it in the 1700s. He believed that, if the population grew too quickly, there wouldn't be enough food and other resources to go around. That could cause people to starve and suffer. We can avoid a Malthusian Catastrophe by having fewer children and making sure everyone has enough food and resources. Taking care of the environment can also help us reduce the risk of a Malthusian Catastrophe, since healthy environments produce more food and resources for people.