Read the following passage:
Renewable energy sources have become increasingly important in addressing climate change and reducing dependence on fossil fuels. Solar power, generated from photovoltaic cells, converts sunlight directly into electricity and has seen dramatic cost reductions over the past decade. Wind energy harnesses the kinetic energy of moving air through turbines, with both onshore and offshore installations becoming more common. Hydropower utilizes the energy of flowing water, though it can have environmental impacts on river ecosystems. Geothermal energy taps into the Earth's internal heat, providing a constant and reliable power source. Each of these renewable sources offers unique advantages and challenges, and many countries are investing heavily in developing their renewable energy infrastructure to meet climate goals.