Recent developments in climate change mitigation strategies are thoroughly examined in this systematic review, which focusses on technological innovations, policy frameworks, economic instruments, and equity considerations. Web of Science, Google Scholar, Scopus, and JSTOR were among the key databases systematically searched to compile the review, which encompasses studies published from 2010 to 2024. A mix of terms like "climate change mitigation," "renewable energy," "carbon pricing," "technological advancements," "policy frameworks," and "equity" were employed to detect relevant studies. We started with 345 records found through database searching and finally, 89 studies were selected for the review. Studies that did not offer empirical data or that were opinion pieces were not considered for inclusion; instead, we examined peer-reviewed research that assessed the efficacy of climate mitigation strategies. Standardized instruments for evaluating the potential for bias in both randomised controlled trials and non-randomized studies were utilised for this purpose. According to findings solar photovoltaic costs have dropped by 82% and wind power by 39% due to technical advancements highlighted in the review. As a consequence, these renewable energy sources are becoming more competitive with fossil fuels. To achieve coordinated global climate action, the results also highlight the significance of strong policy execution, especially international accords. Carbon pricing mechanisms, including carbon taxes and cap-and-trade systems, are essential economic tools for encouraging sustainable behaviour and investing in low-carbon technology; they currently affect about 22% of worldwide emissions. Important results show that renewable energy is vital to lowering GHG emissions, carbon pricing works to motivate climate action, and that a fair transition requires attention to equity concerns. Additionally, the review points out that present mitigation efforts are lacking, especially when it comes to the scalability of new technologies like hydrogen production and carbon capture and storage (CCS). Achieving global climate goals and securing a sustainable future requires a holistic strategy that incorporates technical, policy, and economic measures, with a heavy emphasis on fairness.