Democrat Alexandria Ocasio-Cortez predicts that Miami will not exist 'in a few years' if the Green New Deal is not passed.

The New York representative, 29, made her chilling warning about the effects of climate change at the NAACP forum on Wednesday.

'What is not realistic is not responding with a solution on the scale of the crisis — because what's not realistic is Miami not existing in a few years,' she said.

Ocasio-Cortez reiterated that we need to be 'realistic' about the problem and make changes immediately.

She revealed the Green New Deal proposal in February, which focused on changing the economy, renewable energy alternatives and resource efficiency.

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Alexandria Ocasio-Cortez (above) warns about the possible effects of climate change, including that Miami could no longer exist 'in a few years' on Wednesday

Ocasio-Cortez (second left) appeared at the NAACP forum alongside other members of The Squad, Rashida Tlaib (far left), Ayanna Pressley (second right), Rep. Ilhan Omar (far right)

At the time she was critiqued over the draft legislation, which included an FAQ section that encouraged ending air travel and meat production.

Ocasio-Cortez blamed the unintended disclosure on an intern having a 'really bad day at work,' The Washington Examiner wrote.

Her then-chief of staff Saikat Chakrabarti, 33, revealed the plan was not 'originally a climate thing at all.'

Chakrabarti added: 'We really think of it as a how-do-you-change-the-entire-economy thing.'

Last month, Ocasio Cortez critiqued the lack of large-scale solutions and explained that large numbers of people dying was a realistic possibility.

She said: 'We need to start getting comfortable with how extreme the problem is

'Because only until we accept... how bad climate change is and how bad it can be for our children's lives, are we going to be comfortable pursuing really big solutions.'

Ocasio-Cortez shared a similarly concerning prediction earlier this year that 'the world is gonna end in 12 years if we don’t address climate change.'

Alexandria Ocasio-Cortez (left) launched her Green New Deal proposal in February alongside Chief of staff Saikat Chakrabarti (right), founder of Justice Democrats (pictured: June 27, 2018)

She made the comments during the MLK Now event in New York City that celebrated the legacy of Martin Luther King Jr., in January.

Ocasio-Cortez went onto critique, 'your biggest issue is how are we going to pay for it?' before comparing the issue to millennials and Gen Z's version of 'World War II.'

In August she also said if glaciers melt they could release 'prehistoric diseases... killing humans.'

She added: 'There are a lot of diseases that are frozen in some of these glaciers that scientists fear that there is a potential that a lot of diseases could escape these melted glaciers.'