ابراهيم, منقور يمينزناڨي, سيداحمد2025-06-292025-06-292025http://dspace.univ-temouchent.edu.dz/handle/123456789/6160"As we conclude this research, it is evident that the transition from fossil fuels to renewable energy is not merely an environmental imperative but also an economic and social opportunity. Investing in renewables presents a sustainable pathway to energy security, job creation, and technological advancement while mitigating the adverse effects of climate change. However, this transition requires collective effort—strong policy frameworks, increased investment, and global cooperation. The findings of this study highlight the potential of renewable energy to reshape our energy systems and pave the way for a cleaner, more resilient future.otherThe global energy landscape is undergoing a pivotal transformation, driven by the urgent need to combat climate change, ensure energy security, and foster sustainable development. As the world grapples with the environmental and economic challenges posed by fossil fuels, renewable energy emerges as a viable and imperative alternative. This thesis explores the critical role of investment in renewable energies as a strategic mechanism to transition away from hydrocarbon dependence, mitigate ecological degradation, and promote a greener economy. The shift toward renewables is no longer a choice but a necessity. Solar, wind, hydro, and other clean energy sources offer not only environmental benefits but also long-term economic opportunities, job creation, and technological innovation. However, this transition requires substantial financial commitment, policy support, and international cooperation to overcome existing barriers and accelerate adoption. Through this research, we aim to analyze the potential of renewable energy investments to displace fossil fuels, examining case studies, economic models, and policy frameworks that facilitate this shift. By doing so, we hope to contribute to the discourse on sustainable energy and inspire actionable solutions for a post-carbon future.Thesis