
More than 300,000 people have flocked to climate change rallies in 110 towns and cities across Australia, calling for governments and businesses to act immediately.

The Global Strike 4 Climate, held across the world on Friday, was the biggest climate mobilisation in Australia's history, with more than double the turnout of the March protest.

A whopping 100,000 protesters flooded the streets in Melbourne, while Sydney saw 80,000 people march through the CBD to the Domain.

Protesters were demanding a target of net zero carbon emissions by 2030 and a transition to 100 per cent renewable energy.

Brisbane welcomed 30,000 protesters fighting for change, while Adelaide and Hobart tallied crowds of 20,000. According to organisers of the event, Canberra saw 15,000 protesters and Perth hosted 10,000.

A young girl sits on a man's shoulders during the Sydney protest on Friday. She held a sign which read: 'There is no planet B'

About 80,000 people flooded Sydney's streets as they made their way to the Domain to take part in the demonstration calling for governments and businesses to commit to a target of net zero carbon emissions by 2030

More than 100,000 people flooded Melbourne's CBD to fight for action on climate change. Melbourne saw the largest crowds during Friday's mass protests

As the sea of people made their way to the event in Sydney at midday, some school students on scooters could be seen heading in the opposite direction - appearing disinterested in the event.

A group of 14-year-old boys straggling at the back of the crowd near the Domain told Daily Mail Australia they weren't interested in the protest. They said they were just happy to be out of the class room.

One of the boys said they were going to go to Subway for lunch as they were hungry.

When asked why they came out for the event one replied: 'I just wanted the day off school'.

'A lot of our friends said they were coming so we thought we should come too.'

The demonstration is the biggest climate mobilisation in country's history, with a whopping 100,000 protesters taking to the streets in Melbourne to demand change

Violence erupts: Police arrested a man at the Global Strike 4 Climate rally in Sydney on Friday as onlookers tried to protect an elderly woman sprawled on the ground

The Global Strike 4 Climate will on Friday take place in 110 towns and cities across Australia, with organisers demanding government and business commit to a target of net zero carbon emissions by 2030

A young girl smiles proudly as she displays her sign 'do it for David', with a picture of David Attenborough

Melbourne attracted the biggest crowds of protesters across the country with 100,000 people joining the rally

'Can't eat money': Protesters take to the streets in Sydney as part of the rally which happened across the globe on Friday

Parents took their children out of school to take part in the protest. However, acting Prime Minister Michael McCormack said students should be in school as it was 'just a disruption'

A man clashes with police during the climate rally in Sydney on Friday. He was arrested and removed from the area

However, there were hundreds of young people proving their dedication to the cause as they carried artistic placards they had made the night before, which read: 'Time is almost up' and 'There is no Planet B'.

Others could be seen scribbling their signs on old pieces of cardboard on the footpath as they waited for the event to begin.

One girl Daily Mail Australia spoke to had taken a two hour bus from the Central Coast to make it to the event.

'I'm here because I'm afraid for my future. I don't want to have kids and them to face the same problem,' the 14-year-old said.

Another group of about 10 girls, aged 15, had taken the afternoon off of school to attend the demonstration.

Millions of people from across the globe are expected to walk out of work and school as part of 'Strike 4 Climate Action' which will be held on September 20

There were hundreds of young people proving their dedication to the cause as they carried artistic placards they had made the night before, which read: 'Time is almost up' and 'There is no Planet B'

Thousands of protesters turned out for the climate strike on Friday. This woman wore green and wrapped a vine around her neck for the cause

Australian Greens party leader Dr Richard Di Natale speaks at the climate rally in Melbourne on Friday

'Today the world stands up united' a sign colourful reads at a protest in Byron Bay. A woman in denim overalls carries a sign which read: 'There is nothing we can't do if we do it together'

They said their teachers had encouraged them to attend the event but admitted their principal wasn't as supportive.

'We had to get our parents to sign a permission slip to be able to come,' one girl said.

'We want to make a difference. It's our future. Yes, education is important but if there's no future then there's no point in getting an education.'

'This is way more important than school,' another girl said.

In the heart of Sydney, police were spotted wrestling with a man holding a plastic bag of rubbish as protesting onlookers watched on in horror.

One elderly woman was left sprawled on the ground in pain as officers arrested the man and dragged him away from the crowd punching and screaming.

Daniel, 15, from Fort Street High School in Sydney said young people 'are demanding more than they're being offered'.

'Seeing how many young people are coming out, I think the current politicians we've got might not stay in power for so long anymore, with with a new voting base coming in,' he said.

Hundreds of school children left school early to take part in the rally. Some schools allowed the children to attend as long as they had parental permission while other forbade it

The Global Strike 4 Climate will on Friday take place in 110 towns and cities across Australia, with organisers demanding government and business commit to a target of net zero carbon emissions by 2030

Commuter chaos is expected as thousands of protesters take to the streets as part of a global strike for climate change action

A creative activist photoshopped prime minister Scott Morrision's face to look like Shrek. Their sign read: 'My world's on fire, how 'bout yours?'

School children attended the protests with their parents. Many had spent the night before creating their signs

Asked about those who have criticised students for protesting, he said: 'They shouldn't be commenting on this when we're the ones being affected'.

Bridget, 12, from Chevalier College in the NSW Southern Highlands, had a message for the country's politicians: 'Don't be a fossil fool'.

'I'm concerned about this because I kind of want a future,' she said.

'They didn't do anything when they were kids so they left it all up to us to fix.'

One of the protesters included a man dressed as a yeti, holding a sign saying: 'Wake up humans you're endangered too'.

'Earth don't happen twice': Children carry a colourful sign as they take part in the rally, which happened in cities across the globe

A girl sits on her dad's shoulders as she holds up a sign which read: 'Make the Earth cool again'

Enthusiastic young people chant as they attend the Sydney protest on Friday afternoon. The sun was out and people were smiling

A woman created a stunning Captain Planet sign which read: 'All our power combine we can save the planet'

Protesters with placards participate in The Global Strike 4 Climate rally in Sydney, Friday, September 20, 2019

The Global Strike 4 Climate is organised in 110 towns and cities across Australia on Friday

The strike is the latest in a worldwide movement started in August 2018 when 16-year-old Swedish climate activist Greta Thunberg began protesting outside Sweden's parliament on school days

Acting Prime Minister Michael McCormack said students should be in school as it was 'just a disruption'.

'I think these sorts of rallies should be held on a weekend where it doesn't actually disrupt business, it doesn't disrupt schools, it doesn't disrupt universities,' Mr McCormack told reporters in Melbourne.

'I think it is just a disruption.'

The strike is the latest in a worldwide movement started in August 2018 when 16-year-old Swedish climate activist Greta Thunberg began protesting outside Sweden's parliament on school days.

Acting Prime Minister Michael McCormack said students should be in school as it was 'just a disruption'

The strike is the latest in a worldwide movement started in August 2018 when 16-year-old Swedish climate activist Greta Thunberg began protesting outside Sweden's parliament on school days

She'll participate in the UN's youth climate forum on Saturday and address world leaders at the UN secretary-general's climate summit on September 23.

Ms Thunberg is currently in the US after taking a yacht across the Atlantic to prevent carbon emissions, and urged US lawmakers to 'listen to the scientists'.

The next global strike is scheduled for September 27.