Understanding El Nino and La Nina

The video discusses the potential return of El Nino and its impact on global temperatures. It explains the El Nino and La Nina phenomena, part of the El Nino Southern Oscillation (ENSO), and their effects on ocean temperatures. The video highlights how these phenomena influence global temperatures, with El Nino associated with warmer conditions. It also predicts that 2023 and 2024 could be among the hottest years recorded, with 2024 potentially surpassing 2016 as the hottest year due to El Nino conditions.

What is the potential impact of the return of El Nino on global temperatures?

• It will only affect temperatures in the Southern Hemisphere.

• It will cause a significant drop in global temperatures.

• It will have no impact on global temperatures.

• It could lead to the hottest years ever recorded.

What are El Nino and La Nina?

• They are phases of the El Nino Southern Oscillation affecting ocean temperatures.

• They are weather patterns that occur only in the Atlantic Ocean.

• They are types of tropical storms.

• They are unrelated to ocean temperatures.

What is the relationship between El Nino and La Nina?

• They are the same phenomenon occurring at different times.

• They are unrelated phenomena.

• They both cause cooling of ocean temperatures.

• They are opposite phases of the El Nino Southern Oscillation.

What is the process called when colder water rises to replace warmer water in the ocean?

• Downwelling

• Convection

• Upwelling

• Thermocline

How does El Nino affect the process of upwelling?

• It increases the amount of upwelling.

• It has no effect on upwelling.

• It causes upwelling to occur in different ocean regions.

• It reduces upwelling, leading to warmer ocean temperatures.

What was the impact of La Nina on global temperatures in recent years?

• It caused global temperatures to rise significantly.

• It helped keep global temperatures lower.

• It had no impact on global temperatures.

• It only affected temperatures in the Northern Hemisphere.

Which organization is mentioned as having recorded 2022 as one of the hottest years?

• World Health Organization

• NASA

• United Nations

• Greenpeace

Which year is predicted to potentially become the hottest year ever recorded?

• 2022

• 2023

• 2024

• 2016

When are El Nino conditions expected to occur?

• Towards the end of 2023 during winter in the Northern Hemisphere

• They are not expected to occur in the near future

• In the summer of 2023

• In the spring of 2024

What year was previously the hottest on record before the potential impact of El Nino?

• 2017

• 2018

• 2016

• 2015