Understanding Climate Part 2: Volcanoes, Oceans, and Internal Variability

The video explores internal factors affecting climate, focusing on volcanoes, ocean currents, and climate variability. Volcanoes have a short-term cooling effect, while ocean currents regulate climate by distributing heat and nutrients. Climate change impacts ocean systems, leading to coral bleaching and reduced oxygen levels. Internal climate variability, such as the El Nino and Arctic Oscillation, affects global and regional climates but doesn't explain long-term warming trends.

What is the primary cooling effect of volcanic eruptions on the climate?

• They increase the Earth's albedo.

• They cause long-term warming.

• They release large amounts of carbon dioxide.

• They block sunlight with dust and ash.

How do ocean currents contribute to climate regulation?

• By increasing the Earth's temperature.

• By stopping the melting of glaciers.

• By reducing the salinity of the ocean.

• By distributing heat energy globally.

What is the global conveyor belt?

• A type of volcanic eruption.

• A 1000-year cycle of ocean circulation.

• A method to measure ocean salinity.

• A system of surface currents only.

What happens during an El Nino event?

• Cold water upwelling increases.

• Global temperatures decrease.

• Warm water pools at the ocean surface.

• The Arctic becomes warmer.

How does the Arctic Oscillation affect weather patterns?

• It only affects the Southern Hemisphere.

• It influences local and regional weather.

• It has no effect on weather.

• It causes global warming.

What is the main driver of long-term sea surface temperature trends?

• The planet's energy imbalance.

• Volcanic eruptions.

• The Arctic Oscillation.

• Ocean salinity changes.

What is the primary cause of the planet's energy imbalance?

• Excess greenhouse gases.

• Increased solar radiation.

• Stronger ocean currents.

• Decreased volcanic activity.