The intensifying threat of climate change, largely driven by greenhouse gas emissions from fossil fuel consumption, underscores the urgent need for sustainable energy transitions. This research investigates the critical role of renewable energy in reducing the global carbon footprint and mitigating environmental degradation. Drawing on data from international climate reports and energy agencies, the study examines the environmental, technological, and policy dimensions of renewable energy sources—including solar, wind, hydropower, biomass, and geothermal energy. The paper highlights the capacity of these technologies to replace carbon-intensive fossil fuels across multiple sectors such as electricity generation, transportation, and industry. It also explores the barriers impeding widespread adoption, including high initial investment costs, intermittency issues, and policy and infrastructural limitations. Emphasis is placed on the effectiveness of international agreements like the Paris Agreement and national policies that incentivize clean energy development. The study concludes that a global shift toward renewable energy is not only essential for achieving emissions reduction targets but also offers co-benefits in terms of energy security, economic growth, and sustainable development.
Keywords: Climate change, carbon footprint, renewable energy, greenhouse gas emissions, sustainable development, energy transition, clean technologies.
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