According to the World Nuclear Association, over 40% of CO2 emissions are caused by the burning of fossil fuels for electricity. The effect of electricity on carbon footprinting is immense. Small actions such as forgetting to turn off the lights, resulting in it being left on for hours at a time can devastate energy resources. DarkSky International states that nearly 30% of lighting outside in the US goes to waste partially due to the lack of shielding. To avoid these problems, LED lights should be used because they save energy, especially in cases where light needs to be left on for prolonged periods of time. On top of this, the use of sensors should become more common because sensors have the ability to detect the presence of someone. It will detect movement and turn on, and will go off when there can't sense any movement in the room.

I completely agree with you! The use of LEDs would be a great way to save energy, considering their long life spans and energy efficiency. On top of that containing the excess light would also help the world with it’s light pollution crisis (which is why we can’t see stars that often anymore). The use of sensors is a great idea to save energy, and has been implemented in many locations globally, we could use the same technology to save energy on long roads, and freeways at night with long distance sensors.