New figures indicates a record surge in concentrations of greenhouse gases levels in 2013. CO2 levels in the atmosphere between 2012 and 2013 advanced at their fastest rate since 1984.
The World Meteorological Organisation (WMO) in the finding, has emphasized on the necessity of an international climate change treaty.
According to the experts the rise in CO2 levels is surpassing fossil fuel use, so the planet’s natural capacity to soak up emissions of the gas might have down shifted.
The study also measured the increased concentration of methane, the second most important greenhouse gas and nitrous oxide, which the United Nations agency’s scientists warned would have a warming effect on the earth’s climate.
Methane reached a global average of 1824 parts per billion (ppb), nitrous oxide, reached 325.9 ppb.
Experts also raised an alarm that the world was “running out of time” to invert rising levels of carbon dioxide (CO2) to deal with the climate change.
Around half of emissions are absorbed by the oceans or by the biosphere – in trees and other living organisms – but the other half persists in the air, where it can stay for hundreds of years.
Between 1990 and 2013 the warming effect on the planet known as “radiative forcing” due to greenhouse gases such as CO2 rose by more than a third (34%).
‘We know without any doubt that our climate is changing and our weather is becoming more extreme due to human activities such as the burning of fossil fuels,’ said Michel Jarraud, the Secretary General of the World Meteorological Organisation (WMO) in Geneva, Switzerland.
‘It may be due to the reduced uptake of CO2 by the biosphere,’ Mr Jarraud told a news conference, but said more research is needed. ‘If that is confirmed, it is of significant concern.
The bulletin reports that the global atmospheric concentration of carbon dioxide, the gas responsible for four-fifths of the increase in warming by greenhouse gases, averaged 396 parts per million (ppm) in 2013, 2.9 ppm higher than in 2012.
Jarraud’s warning comes ahead of a crucial UN climate summit, to be held in New York on September 23.
“The Greenhouse Gas Bulletin provides a scientific base for decision-making,” said Jarraud.
“We have the knowledge and we have the tools for action to try keep temperature increases within 2C to give our planet a chance and to give our children and grandchildren a future. Pleading ignorance can no longer be an excuse for not acting.”
Wendy Watson-Wright, executive secretary of the Intergovernmental Oceanographic Commission of UNESCO added, “If global warming is not a strong enough reason to cut CO2 emissions, ocean acidification should be, since its effects are already being felt and will increase for many decades to come.”
Almost 200 governments have given their consent to work out a deal to limit global warming at a summit in Paris next year.
Experts aim to keep global warming within 2°C (3.6°F) above pre-industrial times – goals that were set by the UN in 2010.
Without changes in greenhouse gas emissions, ‘climate change risks are likely to be high or very high by the end of the 21st century,’ according to the IPCC.
UK climate secretary Ed Davey said, “We do believe that the foundations of the agreement have to be legally binding, so what that might be? That might be the rules. That might include the measurements, the monitoring and the verification and those sorts of things.
“We would prefer the targets to be legally binding, we already have legally binding targets in the UK and we are trying to argue for more ambitious legally binding targets for the EU, but we recognise that other countries find that a little bit more challenging.
“I think there’s a lot of support for having something that is legally binding, it’s just the extent of what is covered by that, is where the negotiations will be.”