Introduction:
International organizations and agreements play a crucial role in addressing geographical issues by providing a platform for countries to collaborate on common challenges and find solutions. Case studies can be used to illustrate the effectiveness of these organizations and agreements in addressing geographical issues.

Case study 1: The United Nations Framework Convention on Climate Change (UNFCCC)
- The UNFCCC is an international environmental treaty that aims to stabilize greenhouse gas concentrations in the atmosphere.
- The case study can highlight how the UNFCCC has brought countries together to address the issue of climate change, which has significant geographical implications such as rising sea levels, extreme weather events, and changing ecosystems.
- The Paris Agreement, a landmark agreement under the UNFCCC, can be discussed as an example of how international cooperation can lead to concrete action in addressing geographical issues.

Case study 2: The International Maritime Organization (IMO)
- The IMO is a specialized agency of the United Nations responsible for regulating shipping activities globally.
- The case study can focus on how the IMO addresses geographical issues related to shipping, such as marine pollution, invasive species, and the protection of vulnerable marine ecosystems.
- The role of the IMO in implementing regulations, such as the International Convention for the Prevention of Pollution from Ships (MARPOL), can be highlighted as an effective mechanism for addressing geographical challenges.

Case study 3: The World Health Organization (WHO)
- The WHO is a specialized agency of the United Nations responsible for international public health.
- The case study can discuss how the WHO addresses geographical issues related to health, such as disease outbreaks, access to healthcare, and environmental health risks.
- The WHO's response to the Ebola outbreak in West Africa can be used as an example of how international organizations can coordinate efforts and provide technical assistance to address geographical health challenges.

Conclusion:
Case studies provide valuable insights into the role of international organizations and agreements in addressing geographical issues. The examples of the UNFCCC, IMO, and WHO demonstrate the effectiveness of these organizations in promoting international cooperation, implementing regulations, and addressing challenges related to climate change, shipping, and public health. By studying these cases, we can gain a better understanding of how international collaboration can contribute to resolving geographical issues.