Night Earth

Lisboa, Portugal

Loading...
Lisbon, Portugal seen from the ISS
Loading map...

Lisboa, also known as Lisbon, is the capital city of Portugal, located on the western coast of the Iberian Peninsula. It is a bustling metropolis, with a population of approximately 547,631 inhabitants as of 2021. The city is well-known for its historical landmarks, such as the Belem Tower, the Jeronimos Monastery, and the Sao Jorge Castle. It is also known for its vibrant nightlife, which includes many bars, restaurants, and clubs.

However, along with this vibrant nightlife comes a significant amount of light pollution. The night lights of Lisboa are dazzling, but they also contribute to the city's light pollution. The level of light pollution in Lisboa is estimated to be around 10-15% higher than the average level of light pollution in Europe. The city's location on the Atlantic coast, combined with its bustling industry, contributes to this high level of light pollution.

One of the main contributors to Lisboa's light pollution is the city's streetlights. Many of these lights are older and use outdated technology, which results in them emitting a lot of light upwards into the sky. Additionally, the many brightly-lit shops, restaurants, and bars that stay open late into the night also contribute to the light pollution.

Another factor that affects the level of light pollution in Lisboa is the city's geography. The city is built on seven hills, which means that it has many high points that are visible from a distance. This can make it difficult to control the amount of light that is emitted from the city at night.

Despite the high level of light pollution in Lisboa, the city has taken steps to reduce its impact. For example, the city has replaced many of its older streetlights with newer, more efficient LED lights. These lights are much more directional, which means that they emit less light upwards into the sky. Additionally, the city has implemented regulations that require new buildings to use light fixtures that minimize light pollution.

Despite these efforts, there is still a long way to go to reduce the level of light pollution in Lisboa. The city's residents can play a role in this effort by being more mindful of their energy usage and by supporting efforts to reduce light pollution.

Overall, Lisboa is a vibrant and bustling city that is known for its historical landmarks and vibrant nightlife. However, the high level of light pollution in the city is a concern that needs to be addressed. With the help of its residents and city officials, Lisboa can work towards reducing its impact on the environment and preserving the beauty of its night sky.