USA: To help prevent the melting of glaciers and mitigate the effects of climate change, humans can take several actions: 

1. Reduce greenhouse gas emissions: The primary cause of climate change is the excessive release of greenhouse gases, such as carbon dioxide, into the atmosphere. Individuals can contribute by reducing their carbon footprint through actions like conserving energy, using renewable energy sources, driving less, and opting for sustainable transportation options.

2. Support renewable energy: Transitioning to clean and renewable energy sources like solar, wind, and hydroelectric power helps decrease reliance on fossil fuels, which contribute significantly to climate change. Supporting and advocating for renewable energy initiatives can accelerate the transition to a low-carbon economy.

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3. Conserve water: Glaciers depend on precipitation to maintain their mass. Conserving water by reducing usage and implementing water-saving practices can help maintain the natural water cycle and support glacier health.

4. Promote sustainable practices: Encourage sustainable practices in your community, workplace, and daily life. This includes recycling, reducing waste, choosing environmentally friendly products, and supporting businesses that prioritize sustainability.

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5. Raise awareness: Educate yourself and others about the importance of glaciers and the impact of climate change. Engage in discussions, share information, and support organizations working towards glacier preservation and climate action.

6. Support policies and initiatives: Advocate for policies that prioritize climate change mitigation and glacier conservation. Support politicians and organizations that take a stand on environmental issues and work towards implementing sustainable practices.

7. Preserve natural habitats: Protecting and preserving natural habitats, including mountains, forests, and wetlands, helps maintain a balanced ecosystem. These areas serve as important water sources and play a role in regulating the climate.

8. Support scientific research: Encourage and support scientific research focused on understanding climate change, glacier dynamics, and sustainable solutions. This research provides valuable insights for policymakers and helps develop effective strategies for mitigating glacier melting.

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Keep in mind that combating climate change and preserving glaciers requires worldwide cooperation from people, communities, governments, and businesses. Small adjustments to our daily routines, coupled with systemic changes and international cooperation, can significantly impact the preservation of the glaciers and the future of our planet.