<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  How can renewable energy sources help in reducing greenhouse gas emissions? Context: Utilizing renewable energy sources such as solar, wind, and hydro power can help in reducing greenhouse gas emissions by replacing fossil fuels. Answer: [/INST]By replacing fossil fuels with clean energy sources like solar, wind, and hydro power.</s>