NASA | A Year in the Life of Earth's CO2

The video from NASA's Goddard Space Flight Center presents a supercomputer model visualizing carbon dioxide levels in Earth's atmosphere over a year. It highlights the role of human activity in CO2 emissions, the natural absorption by land and oceans, and the seasonal variations in CO2 levels. The video also discusses carbon monoxide emissions from fires in the southern hemisphere. It emphasizes the increasing CO2 levels contributing to global warming and introduces NASA's OCO-2 mission, which aims to provide a global view of CO2 and improve climate model predictions.

What is the primary greenhouse gas influenced by human activities?

• Ozone

• Nitrous oxide

• Carbon dioxide

• Methane

During which seasons do plants in the northern hemisphere absorb the most carbon dioxide?

• Spring and Summer

• Winter and Spring

• Summer and Fall

• Fall and Winter

Which pollutant is released from fires in the southern hemisphere?

• Carbon dioxide

• Sulfur dioxide

• Methane

• Carbon monoxide

What is the long-term trend observed with carbon dioxide levels in the atmosphere?

• Fluctuating levels

• Increasing levels

• Stable levels

• Decreasing levels

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

• To study solar radiation

• To track methane emissions

• To provide a global view of carbon dioxide

• To monitor ocean temperatures