Beginner friendly: Moderate

Starting a sustainability consulting business for small businesses can be moderately easy for beginners. While it doesn't require special skills or background, it does involve learning about sustainable practices and how to advise businesses on implementing them. Online resources like courses, forums, and videos can help beginners gain knowledge. The setup costs range from $100 to $500, covering basic tools and marketing. With dedication and effort, beginners can start earning profits within 2-6 months. I'd rate it a 2 because while it's accessible to beginners, it requires time and learning to establish credibility and attract clients.