2.3.5 Geo-engineering and Technology

Which sector accounts for about one-third of all emissions and requires major transitions for emission reduction?

• Agriculture

• Energy

• Industry

• Transport

How does technology contribute to climate change mitigation in the context of data?

• By reducing data accessibility

• Through innovations like Data for Climate Action

• By limiting data sources

• Through exclusive use by developed countries

What is the purpose of the UN-REDD program mentioned in the text?

• Promoting renewable energy in developing countries

• Supporting indigenous people in managing forests

• Reducing emissions from industrial processes

• Enhancing solar radiation management

What are the two key approaches in geo-engineering strategies discussed in the text?

• Solar radiation management and land use management

• Greenhouse gas reduction and carbon capture

• Carbon dioxide removal and solar radiation management

• Afforestation and ocean acidification

How does geo-engineering differ from strategies to reduce greenhouse gas emissions?

• It focuses on addressing the root causes of climate change.

• It complements emission reduction strategies without manipulating environmental systems.

• It solely relies on renewable energy sources.

• It has no connection to climate change mitigation.

What is the focus of solar radiation management methods?

• Increasing absorption of solar radiation

• Decreasing reflection from the Earth's surface

• Increasing reflection of sunlight back into space

• Enhancing greenhouse gas emissions

What is a characteristic of biofuel that makes it a 'carbon-neutral' fuel?

• It emits more carbon dioxide when burned.

• It removes carbon dioxide during the growth phase.

• It has a high albedo effect.

• It is a synthetic fuel.

How do solar radiation management methods propose to enhance reflectivity of clouds?

• Decreasing particles in the clouds

• Using aerosols to reduce cloud density

• Increasing particles that attract water molecules

• Eliminating clouds in certain regions

What is the primary function of the biological pump in ocean ecosystems?

• Storing carbon dioxide in sediments

• Enhancing solar radiation management

• Removing nitrogen from the atmosphere

• Increasing ocean acidity

In the Theory of Knowledge section, what ethical question is raised about geo-engineering?

• How does geo-engineering impact global politics?

• Is geo-engineering a cost-effective solution?

• To what extent is it ethical for a few countries to control climate control tools?

• How does geo-engineering affect biodiversity?