In the environmental aspect is a non-carbon emissions clean energy such as solar energy. Wind power, hydro power and they are not restricted to use in the future.
The environment is clean energy such as solar, wind, carbon, energy, water and so on. And their energy is energy that is not limited to use in the future.
The environment is clean energy is not carbon emissions, such as solar energy, wind energy, etc. These energy and energy is limited, can be used in the future.