Yvonne Smith, a hypnotherapist and UFO researcher, told a conference so-called alien abductees “hold the key to advancing humanity” and “receive warnings from aliens”.
She told the annual Roswell UFO festival in New Mexico she has worked with people allegedly abducted by intelligent beings from outer space for 25 years, Currentargus.com reports.
However, she said that far from being sinister, the aliens were doing it to warn them to try to save earth.
She said those people abducted “feel a sense of urgency and fear for the future” as a result.
She claimed the sense of urgency had increased since 2010, but “spiked dramatically during the 2016 Presidential election.”
She said: “New patients were coming into my office saying they needed to do something, time is running out.
“They felt they needed to know more about their experience to find out what it meant.”
Donald Trump, since winning the election, went on to pull the US out of the Paris Climate Change Agreement to reduce global carbon emissions.
Mrs Smith said that a lot of the anxiety expressed by these people concerned the environment.
She said: “Abductees believe aliens abducted them to warn them of what could happen to Earth if human behavior doesn’t change.
“This message could be brought back to the rest of society and elicit real change.
“Regardless of who is right, we are wrong to ignore the messages of experiencers.
“They are the ones who communicate with the aliens.”
However, she claimed the US government has an agenda to cover up that it is happening.
She claimed “abductees” were discredited and dismissed.
She added: “Since the days of flying saucers, the government has tried to marginalise the voices of experiencers.
“We have to pay attention to what these people are saying. They can no longer be silenced.
“Disclosure will not come from our government. It will come from the masses of people that will start coming forward.”
Festival goers included believers and sceptics.
Sue Seidler, 67, travelled from Ohio after losing two hours after a UFO sighting.
She said a large triangular-shaped UFO hover over her at night.
She claimed after a bright flash it was suddenly two hours later.
She said: “I think it’s good to know there are a lot of different views.
“I’ve had a lot of friends say they’ve seen things. I think some are afraid to tell people because they’ll think they’re crazy.”
However, while Dustin Stone, 39, of Lubbock, believes there could be life on other planets, he is not convinced “they are here.”
He said of abductees: “My first instinct would be that they’re crazy, but who knows, it could be possible.”