Ellie Zolfagharifard — Daily Mail Sept 27, 2013
Humans are the main reason for climate change – but the scientists behind a landmark report published today still can’t explain why the world has barely got any hotter in the last 15 years.
The United Nations’ Intergovernmental Panel on Climate Change revealed this morning that it is ‘extremely likely’ that human activity is the dominant cause for global warming observed since the 1950s.
But the report conceded that world temperatures have barely risen in the past 15 years, despite growing amounts of greenhouse gases being pumped into the atmosphere.
Temperature rises have dropped from 0.12°C per decade since 1951 to just 0.05°C per decade since 1998. The slowdown is great enough to be termed a ‘pause’ or ‘hiatus’ by scientists.
However, the IPCC made only a brief mention of the issue, stressing that short-term records are sensitive to natural variability.
In the briefing this morning, Thomas Stocker, co-chair of working group, said that the current warming hiatus could not be predicted because ‘there are not sufficient observations of the uptake of heat, particularly into the deep ocean.’