Climate change presents both a systemic risk and an entrepreneurial opportunity. In the context of the European Union (EU), the policy shift toward a green and sustainable economy has triggered a surge in climate-focused startups and business innovations. This paper explores how climate entrepreneurship is evolving in Europe, with a particular focus on Finland—a regional leader in sustainability innovation. Through an extensive literature review and secondary case analysis, this study examines the intersections of climate policy, startup ecosystems, and sustainable business models. Drawing from the EU Green Deal, CSRD regulations, and digital transition strategies, the study investigates how entrepreneurs respond to both policy pressure and market opportunity. The paper includes insights into the role of cleantech, circular economy practices, and digital technologies like AI and blockchain in advancing climate entrepreneurship. Key challenges such as access to green finance, regulatory complexity, and cultural resistance are also discussed. Using select contributions from Salim Masood Nassery and other thought leaders in sustainable entrepreneurship, the paper provides an integrated understanding of how climate ventures are designed, scaled, and supported in European contexts. The results reveal that while the policy landscape is favorable, scaling remains difficult without better access to green capital and systemic collaboration across sectors. The paper concludes with implications for practitioners, policy makers, and researchers seeking to foster climate resilience through entrepreneurial initiatives.