Environment.

Firstly, DAS relies on small, low radiant power cells that are deployed across space. This means that the power usage of these cells is low, resulting in reduced energy consumption and carbon emissions. This is in contrast to traditional cell towers that require a higher power output and have a larger environmental impact.

Secondly, the cells used in DAS are connected to a signal source by optical fiber cables. Optical fibers are known for their efficiency and sustainability as they are made of glass or plastic and do not emit harmful electromagnetic radiation. This significantly reduces electromagnetic pollution and improves the environmental impact of the system.

Thirdly, DAS has the remarkable capacity to concurrently support different operators, technologies, and frequencies. This means that multiple telecommunications companies can share the same infrastructure, reducing the need for multiple towers or equipment, which in turn lowers the environmental impact.

Lastly, the reduced visual impact of DAS is also worth noting. Since DAS relies on small cells instead of tall towers, it has a much smaller visual impact on the surrounding environment. This is particularly important in urban areas where space is limited, and there is already significant infrastructure in place.

Overall, the combination of low power usage, reduced electromagnetic pollution, ability to support multiple operators, and reduced visual impact makes DAS a sustainable and environmentally friendly solution for telecommunications.