A teenager who has been dubbed the 'anti-Greta' is to speak at a Republican convention is Washington D.C. later this week.

German citizen and climate change skeptic, Naomi Seibt, 19, will appear at the Conservative Political Action Conference known as CPAC in the biggest annual Republican convention of its type running from Wednesday until Saturday of this week.

The event will feature Republican lawmakers, officials from the White House and Trump's re-election campaign, members of the conservative media and even a speech from the President himself.

Naomi Seibt, left, a 19-year-old German YouTube influencer claims to promote 'climate realism' over 'climate alarmism' on YouTube and the climate-skeptic answer to Greta Thunberg, 17, right

Seibt will be speaking at CPAC in Washington D.C. and join a libertarian think tank and lobbying group that promotes climate change skepticism

Seibt has been dubbed as the 'anti-Greta' because of her views on climate change are the polar opposite to those of Swedish environmental campaigner 17-year-old Greta Thunberg.

Seibt's influence is likely to be significantly smaller given that she only has 5,000 Twitter followers compared to Thunberg's 4 million, however being given the seal of approval by CPAC will surely help to bolster her prospects.

A YouTube video created by the Heartland Institute, a think tank which firmly rejects climate change, pitches Seibt against Thunberg.

'I have good news for you. The world is not ending because of climate change,' Seibt says in the video for the lobbying group.

Siebt has been described as a climate-skeptic answer to Greta Thunberg, 17, the environmental activist from Sweden who inspired international climate protests

Naomi Seibt, 19, of Germany, is seen on her Facebook page. Seibt has 48,000 YouTube followers but Thunberg commands 4 millions Twitter followers

'People are being force-fed a very dystopian agenda of climate alarmism that tells us that we as humans are destroying the planet and that we, the young people especially, have no future.'

In another video entitled 'Naomi Seibt vs. Greta Thunberg: whom should we trust?', footage is seen of both teens as they make their opposing cases.

Greta was named Time magazine's 'Person of the Year' in 2019 after making a speech at the United Nations where she demanded action be taken against climate change by the gathered world's leaders.

'Entire ecosystems are collapsing. We are in the beginning of a mass extinction, and all you can talk about is money, and fairy tales of eternal economic growth. How dare you!,' Thunberg bellowed.

Some of Naomi Seibt's videos see her mocking Great Thunberg, right, whom she describes as a 'climate alarmist'

Greta Thunberg was named Time Magazine's Person of the Year and has become the face for youth climate action

Seibt called Thunberg's a proponent of 'climate alarmism.

'I used to be a climate change alarmist myself because, obviously, as a young girl I grew up around the climate change hysteria in the media, in my school books.

'I was an innocent young girl and I thought by hugging the trees I could save the planet, which quite frankly turned out not to be true,' she says in one YouTube video.

Seibt says the current thinking on climate change is an 'insult to science, and the complexity of nature, and freedom of speech' adding 'it is important we keep questioning the narrative that is out there.'

'Climate change alarmism at its very core is a despicably anti-human ideology. We are told to look down on our achievements with guilt, shame, disgust and not even to take into account the many major benefits we have from using fossil fuels as our main energy source.

'Look around. We are living in such an amazing era of fast progress and innovation. We are not allowed to be proud of that at all? Instead debates are being shut down and real scientists lose their jobs.'

Seibt joined the Heartland Institute's Center on Climate and Environmental Policy in February in order to spread her message

A float depicting Swedish climate activist Greta Thunberg during the annual Rose Monday parade in Duesseldorf, Germany, 24 February 2020. Rose Monday is the traditional highlight of the carnival season in many German cities

Seibt doesn't totally rule out mankind's influence in the planet's climate but believes that it has been overstated.

'Are man-made CO2 emissions having that much impact on the climate? I think that's ridiculous to believe,' she said in the Washington Post.

The Heartland Institute said that Seibt was a 'fantastic voice for free markets and for climate realism.'

'It is important that we keep questioning the narrative that's out there instead of promoting it,' Seibt said. 'These days, climate change science really isn't a science at all.'

The UN Intergovernmental Panel on Climate Change, which identifies and reports on areas of wide scientific agreement on climate change, says 'there is alarming evidence that important tipping points, leading to irreversible changes in major ecosystems and the planetary climate system, may already have been reached or passed.'

The UN urges action and describes climate change as 'the defining issue of our time,'