Final Answer:
- An international agreement that seeks to reduce chlorofluorocarbon (CFC) emissions.
- If everyone participates, the ozone layer should recover by 2050.
Step-by-step explanation:
The Montreal Protocol, established in 1987, is indeed an international agreement aimed at addressing the depletion of the ozone layer. One of its primary goals is to phase out the production and consumption of ozone-depleting substances, including chlorofluorocarbons (CFCs). CFCs are known to be significant contributors to ozone layer depletion, and the protocol sets specific targets for their reduction. By reducing the emissions of CFCs, the protocol aims to safeguard and eventually restore the Earth's ozone layer.
Regarding the timeline for ozone layer recovery, it is essential to note that the recovery process is gradual. If all nations actively participate and adhere to the agreed-upon measures, scientists estimate that the ozone layer should recover by around 2050. This timeline is based on models and observations that take into account the reduction of ozone-depleting substances over time. However, it's crucial for continuous international cooperation and compliance with the Montreal Protocol to achieve this timeline and ensure the successful restoration of the ozone layer.
In summary, the Montreal Protocol focuses on the reduction of CFC emissions, and if all nations comply, the ozone layer is projected to recover by 2050. This reflects a global effort to address environmental challenges and highlights the significance of international agreements in mitigating the impacts of human activities on the Earth's atmosphere.