A stunning timelapse video has been produced by a Huddersfield man who says it proves planes are spraying particles into the atmosphere to reduce temperatures.

While some may say he has his head in the clouds, Ray Lynch says his video, taken from a window at his home in Moldgreen, shows definitively that chemtrails do exist.

“People can say what they want about me, but there is no denying what is on the video.”

Some scientists have called for research into geoengineering, the deliberate large-scale intervention in the Earth’s natural systems to counteract climate change. Others say it is a classic example of conspiracy theories.

They say it could be an affordable way of reducing the planet’s temperatures.

One aspect which has been suggested is using high-flying aircraft to deliberately spray chemical or biological agents into the atmosphere to reflect some of the sun’s heat back into space.

Some people believe it has already been taking place for a number of years, and say the aircraft leave chemtrails, long-lasting trails in the sky.

They say that normal contrails left by aircraft dissipate relatively quickly, and contrails that do not dissipate must contain additional substances.

Ray said the ‘nano particles’ spread by the aircraft create clouds which reflect the sun’s rays.

He said the particles, which could be absorbed through the skin, could contain aluminium, and the health implications of this have not been looked into.

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“Aluminium has been linked to Alzheimer’s and dementia, and the rates of both have skyrocketed in recent years.”

Ray, who works as an inspector in the manufacturing trade, first became interested in geoengineering last year.

“I looked out the window and noticed a trail from an aircraft. A few minutes later, instead of disappearing, it had got lower and bigger.

“I was becoming more and more concerned and wanted to prove to myself that I wasn’t being misled.

“It has taken a long time to get the footage but it shows how the ‘trails’ leave the aircraft then open up while descending creating clouds to block out the sun.”