For many, the sky isn’t dark anymore

I already wrote a few articles on dark skies and light pollution. It seems the phenomenon is even worse as one can see with the image on left (courtesy of Stellarium, a great astronomy freeware) This also has an important impact on greenhouse gases emissions. In Australia alone, public lightning is responsible for 1.15 million … Read more

Barcelona’s amazing smart lightning idea

The city of Barcelona and Spanish utility Endesa have been installing smart LED lightning systems that automatically switch themselves off when no one is around. This enables the city to cut by 30 percent its electricity consumption.

I really would like this idea to spread across Europe and even the entire world. Indeed, how many plants are used only to light streets unnecessarily? This would drastically cut costs and would go far beyond the Earth Hour

Last but not least, this would also improve the night sky quality drastically. As we have seen previoulsy, darker skies would benefit Nature and astronomers alike.

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Barcelona is facing important water scarcity

The capital city of Catalonia and one of my favorite European places is facing an increasing water scarcity due to a severe drought as El Pais notes.

This might lead to a total lack of water by October and there are no really good solution to solve this problem as Barcelona doesn’t have any water source nearby.

A really scary thought for an agglomeration that comprises more than five million inhabitants and is the second largest in Spain.

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