Man-made global warming is set to produce exceptionally high average temperatures this year and in 2016, Britain's top climate and weather body says.
"Big changes underway in the climate system?,” is a 20-page report from Britain's Met Office that was released on Sunday.
The report asserts that record temperatures and changes to climate patterns in the world’s oceans were among signs that a global warming pause is coming to an end.
It also highlights current transitions in major weather patterns that affect rainfall and temperatures at a regional level.
"It looks very likely that globally 2014, 2015 and 2016 will all be amongst the very warmest years ever recorded," Rowan Sutton of the National Center for Atmospheric Science, which contributed to the report, told journalists.
"We are seeing the effects of energy steadily accumulating in the Earth's oceans and atmosphere, caused by greenhouse gas emissions," he said. "This is not a fluke," he added, addressing those skeptical of the whole concept of man-made global warming.
According to the report, rising global temperatures were also set to increase in the coming years. The new findings marks an end of more than a decade, in which the pace of warming worldwide appeared to slow down, the report said.
This slowdown was used by skeptics for years as evidence that climate change was not man-made but rather a natural cycle.
Some scientists even claim that there was never a slowdown in global warming and trend was result of miscalculations possibly made by human errors.
The report also cites an El Nino weather pattern centered in the tropical Pacific Ocean saying it is "well underway", and shaping up to be one of the most intense on record.
The report came over two months before a meeting in Paris, where representatives and negotiators from almost 200 countries will gather to hammer out a UN deal in an effort to curb global climate change.
According to the United Nations, 2014 was the warmest since records began in the 19th century.