Lesson 2 - El Niño–Southern Oscillation and La Niña Cycles - GEHU

Order the following sentences to describe the cause and consequences of El Nino

1. El Niño often brings heavy rainfall and flooding to the west coast of South America.
2. It can disrupt marine ecosystems by reducing nutrients in the ocean, affecting fish populations and fisheries.
3. It is caused by weakened trade winds, which allow warm water to move eastward towards South America. (Explain the cause.)
4. This leads to a rise in sea surface temperatures in the central and eastern Pacific Ocean.
5. El Niño is a climate phenomenon that occurs in the Pacific Ocean every 2 to 7 years.
6. Conversely, it can cause droughts and wildfires in Australia and Southeast Asia.
7. The economic impacts of El Niño can include damage to agriculture, infrastructure, and fishing industries.
8. As a result, normal weather patterns are disrupted, affecting rainfall and temperatures worldwide. (Explain the global impact.)
9. Scientists monitor sea surface temperatures and atmospheric pressure changes to predict El Niño events.
10. El Niño also influences weather in North America, bringing wetter conditions to the southern U.S. and drier conditions to the north.