In what way does energy efficiency support sustainability?

Energy efficiency plays a critical role in supporting sustainability by significantly reducing overall energy consumption and greenhouse gas emissions. When systems, processes, or technologies are more energy efficient, they require less energy to perform the same tasks or produce the same outputs. This reduction in energy demand leads to a decrease in the amount of fossil fuel combustion needed for energy production, which is a major contributor to greenhouse gas emissions.

By lowering these emissions, energy efficiency contributes to cleaner air and a healthier environment. Additionally, enhanced energy efficiency often means reduced reliance on non-renewable energy sources, which helps conserve these resources for future generations. Moreover, when energy consumption is minimized, it alleviates pressure on energy supply systems and can lead to lower energy costs for consumers and businesses in the long run, further promoting economic and environmental sustainability.

In contrast, other options do not align with the principles of sustainability. Increasing energy costs would deter rather than promote sustainable practices. Limiting the availability of renewable resources counters the aim of sustainability, which is to utilize and increase renewable energy sources. Lastly, ensuring long-term resource depletion contradicts the fundamental goal of sustainability, which seeks to maintain resources for future use.