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The three regions of Oceania are:
1. **Polynesia:** This region includes islands like Hawaii, New Zealand, and Samoa.
2. **Melanesia:** This region consists of countries such as Papua New Guinea, Fiji, and Vanuatu.
3. **Micronesia:** This region comprises countries like Guam, Kiribati, and the Marshall Islands.
The biggest problem these regions face today is **climate change**. Oceania is particularly vulnerable to rising sea levels, extreme weather events, and ocean acidification. These impacts threaten the livelihoods, cultures, and environments of the people living in these regions. Additionally, the exploitation of natural resources, environmental degradation, and challenges related to sustainable development also contribute to the ongoing issues faced by the nations in Oceania.
