Ozone Layer and CFCs Impact

The video discusses the discovery of the ozone layer's depletion due to CFCs, the public and industry response, and the scientific evidence that led to the Montreal Protocol. It highlights the success of international cooperation in reducing CFCs and the ongoing recovery of the ozone layer. The video also draws parallels to current climate change challenges, emphasizing the need for similar global efforts.

What was the primary concern about the ozone layer in the 1970s?

• It was increasing in thickness.

• It was being depleted by CFCs.

• It was causing acid rain.

• It was causing global warming.

Who were the scientists that hypothesized the impact of CFCs on the ozone layer?

• Albert Einstein and Niels Bohr

• Isaac Newton and Galileo Galilei

• Mario Molina and Sherry Rowland

• Charles Darwin and Alfred Wallace

What was the initial reaction of the industry to the hypothesis about CFCs?

• They dismissed it as nonsense.

• They funded further research.

• They supported the hypothesis.

• They immediately stopped production.

What was the initial regulatory response to CFCs in the mid-1980s?

• Increased production

• Partial ban in aerosols

• Complete global ban

• No action taken

What significant event in 1987 helped address the issue of ozone depletion?

• The Paris Agreement

• The Kyoto Protocol

• The Montreal Protocol

• The Geneva Convention

What was a key factor in the success of the Montreal Protocol?

• Exclusion of developing countries

• Lack of scientific evidence

• Industry cooperation and investment in alternatives

• High cost of alternatives

What was one of the challenges in applying the Montreal Protocol approach to climate change?

• Lack of scientific evidence

• High cost of implementing solutions

• No international cooperation

• No available alternatives

What is the current status of the ozone layer as of early 2023?

• It is unaffected by human activity.

• It has completely recovered.

• It is showing signs of healing.

• It is still depleting rapidly.

What role does the National Oceanic and Atmospheric Administration play in monitoring the ozone layer?

• They launch satellites to measure the ozone layer.

• They conduct ground-based observations only.

• They launch balloons into the stratosphere to measure the ozone layer.

• They rely on international reports for data.

What is a potential future solution for reducing CO2 emissions mentioned in the transcript?

• Increased use of fossil fuels

• Deforestation

• Carbon capture and storage

• Complete reliance on nuclear energy