Are There Surprises In The Carbon Cycle? - The Carbon Cycle

The video discusses feedback mechanisms in climate systems, focusing on how the carbon cycle can influence climate change. It highlights the role of land plants, soils, and the Arctic in carbon storage and release. The video also explores the complexities of predicting ecosystem responses to warming, considering factors like temperature, moisture, and human activities. It emphasizes the challenges in understanding the interplay between carbon, nitrogen, and warming, and the potential surprises in the carbon cycle that could affect climate change.

What is an example of positive feedback mentioned in the video?

• A fan

• A microphone

• A refrigerator

• A heater

How can climate change affect forest fires?

• By increasing rainfall

• By reducing human activities

• By decreasing the number of thunderstorms

• By causing droughts that dry out forests

What happens to carbon in the Arctic as the permafrost thaws?

• It turns into water

• It remains frozen

• It is released into the atmosphere

• It is absorbed by plants

What is a potential consequence of microorganisms decomposing carbon in wet conditions?

• Formation of methane

• Release of oxygen

• Production of nitrogen

• Absorption of carbon dioxide

What is a challenge in predicting the future of the carbon cycle?

• Abundance of resources

• Lack of technology

• Complex interactions in ecosystems

• Stable climate conditions

What factor, besides temperature, can limit decomposition in dry regions?

• Soil type

• Sunlight exposure

• Moisture availability

• Wind speed

What is a concern regarding the interplay between carbon, nitrogen, and warming?

• Nitrogen is not involved

• Carbon is not affected by warming

• Microorganisms do not play a role

• The exact net effect is unknown