"This is not about anthropogenic or man-made climate change, this is about whether the gatekeepers of the data, the metrological agencies, are providing reliable information."
There's a lack of clarity, a lack of transparency and a growing concern about what is going on
Dr Benny PeiserAnother issue is a supposed lack of widespread weather stations - resulting in some temperature figures having to be estimated, Dr Peiser claimed.
One area where Dr Peiser claims there are few weather stations are the North and South Poles, of which melting ice has often been a key concern for some climate scientists.
Other issues which Dr Peiser says should be addressed are a change in technology and environment, which he claims needs to be accounted for when displaying temperature results.
He said: "In some areas there are hardly any weather stations so [the figures] have to be filled in, so they [metrological agencies] kind of estimate. Particularly in the Arctic and Antarctic, there are very few weather stations so you have to make a lot of infilling.
"Then there are other problems. Obviously you have to adjust temperatures for growing cities and so therefore this will have an affect on local temperatures.
"Different technologies will also produce different readings, simply because the technology has changed and you have to take that into account.
