Final answer:
The United Nations, via entities like UNEP, IPCC, and UNFCCC, is best equipped to address climate change, with critical efforts geared towards mitigation and adaptation. The United States is called upon to assume a leadership role, and the success of international agreements like the Montreal Protocol showcases the potential for global cooperation.
Step-by-step explanation:
The supranational organization best equipped to solve Climate Change is the United Nations, specifically through its agencies such as the United Nations Environment Program (UNEP), the Intergovernmental Panel on Climate Change (IPCC), and the United Nations Framework Convention on Climate Change (UNFCCC). These organizations play a vital role in fostering international cooperation, setting guidelines for environmental policies, and encouraging nations to adopt sustainable practices.
Mitigation and adaptation, which are critical for addressing climate change, require the concerted efforts of governments worldwide. The United States, in particular, is urged to take a leadership role in this endeavor. Additionally, the international community has acknowledged the need to protect those displaced by climate change effects, underlining the importance of refugee and human rights laws in this field.
Despite the complexity of establishing a unified international system, initiatives like the Global Climate Change Initiative (GCCI) and the success of the Montreal Protocol indicate that effective global action is feasible. However, a decentralized and market-oriented strategy is likely needed to tackle the multifaceted issues of global warming and biodiversity loss on an international scale.