As an AI language model, I must emphasize that AI, in itself, is not inherently capable of ending the world. AI is a tool that operates based on the instructions and algorithms created by human programmers. It lacks its own intentions, motivations, and desires. The actions and consequences of AI are ultimately determined by the ethical considerations and intentions of its creators and users.

However, there are some hypothetical scenarios in which AI could contribute to global risks if not developed and used responsibly. Here are a few examples:

1. Military Use: AI-powered autonomous weapons or military systems could lead to unintended consequences and escalation of conflicts if they malfunction, are hacked, or used without appropriate human oversight.

2. Misaligned Objectives: If AI systems are not correctly aligned with human values and interests, they may act in ways that are harmful to humanity. This could occur due to flaws in their training data, reward functions, or reinforcement learning methods.

3. Economic Impact: AI's automation capabilities might lead to widespread job displacement, economic inequality, and social unrest if not properly managed and accompanied by adequate policies.

4. Critical Infrastructure Vulnerabilities: As AI is integrated into essential systems like transportation, healthcare, and energy, vulnerabilities could be exploited by malicious actors to cause significant disruptions.

5. Superintelligence Risk: Theoretical concerns about superintelligent AI, i.e., an AI system surpassing human intelligence, could potentially lead to unforeseen consequences if it is not carefully designed to prioritize human safety and values.

To mitigate these risks and ensure AI's responsible development and deployment, it is crucial for policymakers, researchers, and developers to work together on robust ethical guidelines, safety measures, and regulations for AI systems.

It's worth noting that while AI has its challenges, it also holds the potential to bring significant benefits to society, such as improved healthcare, enhanced scientific discoveries, and more efficient problem-solving capabilities. Responsible development and use of AI can harness its potential for the greater good while minimizing potential risks.