¿Cómo se generan los bitcoins?

How are bitcoins generated? I've heard that it involves a complex process called mining, but I'm not sure exactly how it works. Can you explain the steps involved in generating bitcoins and what kind of technology is used to do so? Additionally, I'm curious about the energy consumption associated with mining, as I've heard it can be quite high. Is there a way to reduce the environmental impact of Bitcoin mining?