'I'd guess that it will have some influence, at least on those people who don't know much about the subject,' Anthony Leiserowitz, director of the Yale Program on Climate Change Communication, told BuzzFeed News.

'Might be confusing to some people, but that's probably better than just accepting the denier video at face value.'

YouTube initially neglected to tell Wikipedia that it would be using its content for this purpose, but contact between the two firms has since taken place with the site working together to combat the propagation of inaccurate information.

A post by Wikipedia to its users and administrators revealed a list of seven topics Youtube would be using Wikipedia information for on its site, including the MMR vaccine and global warming.

When the new Wikipedia blurb policy took effect in July, YouTube did not publicly confirm climate change was an impacted topic.

Users were not notified of the change, with the change only noticed once the blurbs  started to appear sporadically on certain videos.
 
YouTube initially neglected to tell Wikipedia that it would be using its content for this purpose, but contact between the two firms has since taken place with the site working together to combat the propagation of inaccurate information.

 

The Heartland Institute – a think tank that posts videos questioning climate change – confirmed it was not informed of the change by YouTube.

Meanwhile, PragerU, a nonprofit online institution that has also been affected by the recent addition of climate change to the feature, says the latest update is an example of YouTube displaying political bias.

'Despite claiming to be a public forum and a platform open to all, YouTube is clearly a left-wing organization,' Craig Strazzeri, PragerU's chief marketing officer, said.

'This is just another mistake in a long line of giant missteps that erodes America's trust in Big Tech, much like what has already happened with the mainstream news media.'

Wikipedia was provided with a list of topics of which its content would appear below videos of certain topics. 

Those articles are –
    Global warming
    Dulce Base
    Lilla Saltsjöbadsavtalet
    1980 Camarate air crash
    Federal Emergency Management Agency
    Kecksburg UFO incident
    MMR vaccine
 

YouTube says the policy is designed to give users easy access to external information to provide context and information on topics prone to misinformation.

It has also revealed that in the coming months more videos will see the labels appearing. 

'I welcome this change,' Katharine Hayhoe, a climate scientist at Texas Tech University, told BuzzFeed News.

'I appreciate that YouTube is taking their responsibility seriously to help people understand the difference.'  

Jason Reifler, a political science professor at the University of Exeter, also lavished praise on YouTube for making the move. 

'They could have chosen wording that's stronger and gets more to what the real terms of debate are between the extremely well-supported consensus scientific video versus the much, much smaller proportion of sceptics,' Dr Reifler told BuzzFeed News.

'I'm doubtful this first step is going to do much. But I hope it does!'