One idea from research that could produce beneficial changes in 20 years or less is the widespread implementation of renewable energy sources. This idea is viable because renewable energy technologies such as solar, wind, and hydroelectric power have already been developed and proven to be effective in reducing greenhouse gas emissions and mitigating climate change. By shifting away from fossil fuel-based energy generation and towards renewable sources, we can significantly reduce our carbon footprint and decrease dependence on finite resources. The implementation of renewable energy sources will benefit the environment in several ways. Firstly, renewable energy technologies produce little to no greenhouse gas emissions during operation, thus reducing the overall amount of CO2 and other harmful gases released into the atmosphere. This will contribute to mitigating climate change and reducing the impact of global warming. Secondly, renewable energy sources are inherently sustainable and can be continually replenished, unlike fossil fuels that require extraction and eventually run out. This would help in preserving non-renewable resources and reducing the negative environmental impacts associated with the extraction and combustion of fossil fuels. In addition to the environmental benefits, the widespread adoption of renewable energy sources also has potential economic benefits. While there may be initial costs involved in building and implementing renewable energy infrastructure, these costs can be offset by the long-term savings in fuel and maintenance expenses. Renewable energy sources have the potential to provide stable and predictable energy prices, as they are not subject to the same price volatility as fossil fuels. This could lead to more affordable and accessible energy for consumers and businesses alike. Furthermore, the development and deployment of renewable energy technologies will also create job opportunities and contribute to economic growth. According to a study conducted by the International Renewable Energy Agency (IRENA), the renewable energy sector employed approximately 11 million people worldwide in 2018, with the potential to reach 28 million jobs by 2050. This demonstrates the potential for job creation and economic development associated with renewable energy. While there are economic costs associated with the implementation of renewable energy sources, they must be viewed in the context of the long-term benefits and potential cost savings. Initial investment costs in renewable energy infrastructure can be high, especially for developing countries with limited financial resources. However, these costs can be offset by the long-term savings in fuel and maintenance costs, as well as the economic benefits associated with job creation and reduced dependency on imported energy sources. In conclusion, the widespread implementation of renewable energy sources is a viable idea that could produce beneficial changes in 20 years or less. This idea is supported by scientific research and has already been proven effective in reducing greenhouse gas emissions and mitigating climate change. The adoption of renewable energy sources will benefit the environment by reducing greenhouse gas emissions, preserving non-renewable resources, and contributing to economic growth. While there may be economic costs associated with the initial implementation, the long-term benefits and potential cost savings outweigh these costs.