There long have been claims, including some that are fairly wild, about the exhaust trails from passenger jets traveling over the United States.

Deliberate distribution of chemicals to change the weather, to alter populations, even for mind control.

Now Lee Zeldin, the chief of the Environmental Protection Agency in the administration of President Donald Trump, has announced an online posting with explanations.

In his video message, he said the new web pages were posted to inform “anyone who’s ever looked up to the streaks in the sky and asked, ‘What the heck is going on?'”

A report in the New York Post said the facts debunk claims, including some from Zeldin’s fellow Republicans, that contrails are actually “chemtrails” that are deliberately being used to distributed … something.

“We did the legwork, looked at the science, consulted agency experts, and pulled in relevant outside information to put these online resources together,” Zeldin said. “Everything we know about contrails to solar geoengineering will be in there.”

The EPA says the “contrails,” or condensation trails, are common clouds created by the exhaust from high-altitude jets and can be seen “for the same reason that you can see the exhaust from your vehicle or your own breath on a cold day.”

The EPA states, “The federal government is not aware of there ever being a contrail intentionally formed over the United States for the purpose of geoengineering or weather modification.”

There are such distributions, the agency confirms, when low-altitude, propeller driven airplanes are used to distribute chemicals for firefighting, or farming, an industry that uses a variety of weed and pest controls.

Further, he said, despite headline claims about private individuals or government operations trying to “blot out the sun in the name of stopping global warming” are made up.

The report said, “Only one private company, South Dakota-based Make Sunsets, has experimented in the U.S. with solar geoengineering through what is known as stratospheric aerosol injection (SAI) and marine cloud brightening (MCB) to potentially lower the Earth’s temperature.”

But there have been plans that used processes like cloud seeding to modify the weather.

Most cloud seeding is carried out to learn how to combat heavy droughts and is “primarily funded at the state or local level,” the GAO has reported.

Rep. Marjorie Taylore Green, R-Ga., has promised legislation to ban releasing substances into the atmosphere in attempts to alter the weather, and HHS chief Robert F. Kennedy Jr. responded to a viral video by promising to “stop” such activity.