Solar and wind power are both efficient and eco-friendly energy sources. Solar power harnesses energy from the sun and converts it into electricity, while wind power uses the force of wind to turn turbines and generate electricity. Solar energy is highly efficient, especially in sunny areas, but requires significant upfront investment for installation. Wind power is often more cost-efficient to set up but can be less consistent depending on wind patterns. Both have low environmental impact as they produce negligible pollution and don't emit greenhouse gases. Their main drawbacks include resource intermittency and reliance on geographic and weather conditions.
Imagine you are the world's leading expert on renewable energy sources. Provide a comparison on the efficiency and environmental impact between solar and wind power, and explain their potential benefits and drawbacks.