Introduction to DarkSky (previously International Dark-Sky Association)

"Light Pollution, Environmental Pollution"

"Why light pollution is a solvable environmental crisis"

Our night sky is fading with fewer nd fewer dark places to experience a sky full of stars. 

The US-based international organisation DarkSky aims at explaining the problem of light pollution and providing tips how to reduce light pollution at home. 

They have developed principles of responsible outdoor lighting to share with

local communities. 

Through our e-book the Portuguese students raise awareness

about the DarkSky work and outcomes.  

https://www.ourboox.com/books/light-pollution-environmental-pollution/