David Keith: A critical look at geoengineering against climate change

The video discusses the long-standing awareness of climate change, highlighting that the issue has been known for decades. It examines the accelerating growth of CO2 emissions and the minimal progress made in addressing the problem. The speaker introduces geoengineering as a potential solution, explaining its mechanisms and historical precedents like Mount Pinatubo. The video also explores the challenges, side effects, and ethical considerations of geoengineering, emphasizing the need for serious debate and research. It concludes by urging a broader discussion involving various stakeholders to address climate change effectively.

What is the surprising fact about the New York Times article mentioned by the speaker?

• It was published in 2020.

• It was published in 1953.

• It was never published.

• It was written by a famous scientist.

According to the speaker, what percentage of CO2 emissions is caused by electricity production?

• 10%

• 60%

• 25%

• 43%

Why does the speaker believe the climate change problem is solvable?

• It is not a real problem.

• It requires no financial investment.

• It will solve itself over time.

• It can be solved with existing technologies.

What natural event does the speaker use to illustrate the concept of geoengineering?

• The Great Flood

• The Dust Bowl

• Mount Pinatubo eruption

• Hurricane Katrina

What is the main advantage of using photophoretic forces in geoengineering?

• It is slower than other methods.

• It requires more sulfur.

• It can focus on cooling the poles.

• It is more expensive.

What is a major concern about geoengineering discussed by the speaker?

• It is too cheap to implement.

• It is completely foolproof.

• It could lead to wars over control.

• It has no side effects.

What is the potential downside of knowing geoengineering is possible?

• It makes people more committed to cutting emissions.

• It makes climate impacts seem less severe.

• It has no effect on public perception.

• It increases the cost of emissions reduction.

What does the speaker suggest is necessary for addressing geoengineering?

• Leaving it to individual countries to decide.

• Immediate implementation without research.

• A global treaty to govern its use.

• Ignoring the issue entirely.

What is the speaker's stance on the moral hazard of geoengineering?

• It is beneficial for reducing emissions.

• It is not a concern.

• It is a serious problem that needs addressing.

• It is a minor issue.

What does the speaker believe is necessary for a broader debate on geoengineering?

• Politicians should decide alone.

• A diverse group including musicians and philosophers.

• It should be kept secret from the public.

• Only scientists should be involved.