Global energy emissions stayed stable in 2014 despite the global economic revival, which usually coincides with increasing emissions, the International Energy Agency revealed.
The optimistic figures have been partly attributed to China’s renewable energy drive and its efforts to curb excessive pollution levels.
As a result the 2014 carbon emissions form the energy sector didn’t exceed the 32.3 billion tons of carbon dioxide recorded in 2013, the International Energy Agency said. That makes 2014 the first year since records began that saw carbon emission reduction during economic upturn.
Over the past 50 years, the only other times that emissions stayed the same or shrank were during economic downturns - in the early 1980s, in 1992 and in 2009.
The report said the numbers suggest that government and industry policies to fight climate change might be working better than expected, notably by reducing a reliance on coal and using more wind and solar power.
Incoming IEA director Fatih Birol called the development "a very welcome surprise and a significant one", because it shows that countries can grow economically without increasing emissions.
"It provides much-needed momentum to negotiators preparing to forge a global climate deal in Paris in December," he said.
The UN climate talks would be the first time that all countries take joint action to reduce global emissions of greenhouse gas emissions, which scientists say are a key driver of global warming.
UN climate chief Christiana Figueres called the data "good news" for prospects at the Paris talks.