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Residents of the Swedish city of Trelleborg have seen the sky above them turn eerily purple. It happened in early November, several times, at nightfall. The darkness suddenly lit up with an unusual color, with a purple tinge, much to the surprise of the 43,000 inhabitants of this city in southern Sweden. Immediately, the phenomenon gave rise to a wave of reactions.
But it was not a mysterious meteorological phenomenon, as many thought, but the effect of a … new agricultural method! Ten minutes from the city, a new type of lighting is being used for tomato crops.
Bright tomatoes “SF”
If in the summer the night lasts only a few hours in Sweden, in the winter the sun sets quickly, in the early afternoon, and farmers must light their greenhouses to provide the plants with the necessary light for good development. But usually, apart from “light pollution” caused by the massive illumination of the fields, no strange colors were observed in the sky.
To find the origin of the purple color in the sky in Trelleborg, you have to leave the city and go to Gislöv, a municipality located 7 kilometers away. There, a new type of lighting is used to encourage the cultivation of tomatoes.
To reduce energy consumption in particular, local farmers have decided to give up their classic lighting systems for greenhouses and opt for a new LED-based system with purple light.
Each night the device lights up, emitting a purple light on one of the largest tomato crops in Sweden. Not only would it benefit plants, but LED lighting would also spur an increase in production, as reported by television Svt Nyheter.
The problem is that when water evaporates and low, thick clouds float in the atmosphere, the light is reflected over a large area of the atmosphere and thus the purple “light” of the sky.
The locals are annoyed
But residents of the area, from Gislöv to Trelleborg, complain that the light reaches their homes. Then, from 6 November, farmers started turning off the LED lights between 5pm and 11pm.
Trelleborg environmental manager Mikael Norén said producers were asked for a solution and a broader plan to avoid further inconvenience to the locals.
The owners are now looking for solutions so that the new LED method, which was supposed to save them energy and better tomato production, does not bother anyone. In a statement, they announced that they would stop “growing tomatoes during the evening”, looking for other solutions. For them it is a step backwards, but the intention was not to annoy the locals, the farmers assured.
Publisher: Luana Pavaluca
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