Understanding Carbon Dioxide and Climate Change

Bill Putman, a climate scientist at NASA, presents a supercomputer model visualizing carbon dioxide levels in Earth's atmosphere. The model shows how CO2, a key greenhouse gas, is emitted and dispersed globally, with significant seasonal variations due to photosynthesis. The video also highlights carbon monoxide emissions from fires in the Southern Hemisphere. Rising CO2 levels contribute to global warming. NASA's OCO-2 satellite will enhance understanding of CO2 emissions and help improve climate models.

What is the primary purpose of the supercomputer model shown in the video?

• To simulate ocean currents

• To model carbon dioxide levels in the atmosphere

• To predict weather patterns

• To track wildlife migration

What happens to about half of the carbon dioxide emitted from fossil fuels?

• It is converted into oxygen

• It remains in the atmosphere

• It is used by animals for respiration

• It is absorbed by the sun

Which regions have the highest concentrations of carbon dioxide in the Northern Hemisphere?

• South America, Africa, and Australia

• The Middle East and India

• Antarctica and the Arctic

• North America, Europe, and Asia

How do plants affect carbon dioxide levels during spring and summer in the Northern Hemisphere?

• They have no effect on carbon dioxide levels

• They release carbon dioxide into the atmosphere

• They absorb carbon dioxide through photosynthesis

• They increase carbon dioxide levels

What is the main source of carbon monoxide emissions in the Southern Hemisphere during summer?

• Industrial pollution

• Volcanic eruptions

• Fires in Africa, South America, and Australia

• Vehicle emissions

What trend is observed with carbon dioxide levels each year?

• They are decreasing

• They remain constant

• They are increasing

• They fluctuate randomly

What is the role of NASA's OCO-2 satellite?

• To measure ocean temperatures

• To provide a global view of carbon dioxide

• To track wildlife populations

• To monitor volcanic activity

How will OCO-2 observations and atmospheric models like GEOS-5 contribute to climate science?

• By tracking animal migrations

• By enhancing predictions of future climate conditions

• By improving weather forecasts

• By predicting volcanic eruptions