Answer:
It causes a change in weather and weather patterns.
Step-by-step explanation:
El Nino can cause unusual warmth (in the Pacific) during seasons like winter for example! It can also bring severe conditions such as heavy rains or droughts throughout the world. It mostly depends on the place though, because, in California, it's responsible for heavy rains, flooding, and mudslides. All of these changes, however, can last for one to two years before normal winds and currents return. Hope this helped!