Talks to agree a new international deal to tackle climate change are set to overrun as many countries remain divided over the key issues.

Ministers from 195 countries worked through the night as fraught discussions on how to phase out greenhouse gases and finance for poorer nations continued to stall the UN's climate summit in Paris.

The talks were due to end tonight after two weeks of wrangling, but the French foreign minister Laurent Fabius, who is chairing the summit, conceded the talks would run in to Saturday.

The UN's climate talks in Paris are to overrun into Saturday as disputes between countries have caused delays. Campaigners outside the conference have increased attempts to put pressure on world leaders at the talks with protests, including drawing a yellow 'sun' with paint around the Arc de Triomphe (pictured)

He said a final version of the draft agreement will not be produced until Saturday morning and will then be voted on by delegates.

However, many countries including China and Saudi Arabia have been refusing to yield ground on key issues within the agreement.

COUNTRIES CLIMATE CHANGE PERFORMANCE RATED As the world looks to leaders in Paris to hammer out a new climate change deal, countries have been ranked on their performance on tackling global warming. Denmark emerged at the top of the list as the country doing the most to combat dangerous global warming, with the UK close behind. However, Saudi Arabia was ranked in the lowest position, while Australia was third from last, just a day after the country's foreign minister, Julie Bishop said Australia is meeting and beating its targets on climate change. A map from the report showing countries ranked good (green), moderate, (yellow) poor, (orange) and very poor (red) is pictured The report, by Climate Action Network Europe (CAN) and Germanwatch was released at the Paris climate summit where leaders are trying to work out how to tackle climate change. The conference is the last chance for 195 countries to agree on a strategy since members agreed in 1992 to stabilise greenhouse gases 'at a level that would prevent dangerous anthropogenic interference with the climate system.' The Climate Change Performance Index 2016 (CCPI) measures emission levels per capita as well as a country's use of renewable energy and its climate change policies. While no country was awarded first to third place, because 'no country is doing enough to prevent dangerous climate change', Denmark took fourth place – the top ranking out of 58 countries. The UK, Sweden, Belgium and France make up the remaining top five. Advertisement

The text has already been slimmed down since the talks started from 43 pages to just 27 in an attempt to find compromises, but Saudi Arabia said it would continue to oppose the text.

It fears that plans to limit global temperature rises to within 2 degrees Celsius (3.6 Fahrenheit) above pre-industrial levels could jeopardise oil production.

The latest draft, which was published on Thursday night, also sets targets that would see countries attempt to become 'greenhouse gas emissions neutral' in the second half of the century by shifting to cleaner energy sources.

This was target was more ambitious than in previous texts and was insisted after many countries such small island states and members of the European Union pushed for more stringent commitments to emissions cuts.

Arguments over finance deals to help poor countries cope with climate change and adapt to low carbon economies has also been a major point of disagreement.

The United States has said it remains opposed to any wording that might force it to give compensation to developing nations struggling to cope with the impacts of climate change as a result of past emissions by developed countries.

Speaking last night to delegates at the talks, Mr Fabius said: 'We are extremely close to the finishing line. We must show the necessary responsibility to find in the forthcoming hours a common ground.

'It's time to come to an agreement.'

However, he later admitted he would not be presenting a new draft of the text until Saturday.

'I will not present the text Friday evening, as I had thought, but Saturday morning,' Mr Fabius told BFM television. 'There is still work to do ... Things are going in the right direction.'

However, Gurdial Sing Nijar of Malaysia, the head of a bloc of hardline countries including India, China and Saudi Arabia, said: 'We are going backwards.'

They have put up the fiercest resistance against attempts by the U.S., the European Union and other wealthy nations to make emerging economies pitch in to reduce global greenhouse gas emissions and help the poorest countries cope with climate change.

The issue, known as 'differentiation' in United Nations climate lingo, was expected to be one of the last to be resolved.

Nijar said it was unreasonable to expect countries like Malaysia to rapidly shift from fossil fuels - the biggest source of man-made greenhouse gas emissions - to cleaner sources of energy.

French Foreign Minister Laurent Fabius (pictured) has admitted that a final draft of the text will not be published until Saturday. Squabbles overnight have meant the talks at the UN climate change summit in Paris will run past Friday night's deadline to reach a deal

Many countries remain divided over key issues such as targets for reducing greenhouse gas emissions. China, the world's biggest polluter, is part of a hardline bloc that is apparently opposed to ambitious targets to cut carbon emissions. An image of smoke from a coal fired power station in Shanxi, China is pictured

Green campaigners have been attempting to put pressure on world leaders at the meeting to reach a deal with demonstrations across the city (pictured)

Greenpeace has been using a giant sculpture of a polar bear, which are thought to be threatened by climate change, to persuade delegates at the talks to agree binding targets

'We cannot just switch overnight ... and go to renewables,' he said, on a coffee break between meetings at 1:30 am.

'If you remove differentiation you create very serious problems for developing countries.'

US Secretary of State John Kerry held several meetings with ministers from around the world through the night as he attempted to haggle them into an agreement.

Greenpeace protesters scaled the Arc de Triomphe to display a banner that read: 'M.Hollande, renew the energy' (left). Earlier protesters poured yellow paint on the road around the famous Paris landmark (right)

'We're working on it,' said Mr Kerry as he emerged from one meeting.

However, Matthieu Orphelin, spokesman for the Nicolas Hulot Foundation which advises President Francois Hollande on climate change, said: 'Major countries have entrenched behind their red lines instead of advancing on compromise.

Lord Nicholas Stern, the economist who wrote the UK Government's review on the impacts of climate change, said it was important a clear deal was reached otherwise it could harm global business.