Yet another way in which the current times bear an inconvenient resemblance to the 1970s…
“Prof Tsonis said that the period from 1915 to 1940 saw a strong warm mode, reflected in rising temperatures.
But from 1940 until the late Seventies, the last MDO cold-mode era, the world cooled, despite the fact that carbon dioxide levels in the atmosphere continued to rise.
Many of the consequences of the recent warm mode were also observed 90 years ago.For example, in 1922, the Washington Post reported that Greenland’s glaciers were fast disappearing, while Arctic seals were ‘finding the water too hot’. Warm Gulf Stream water was still detectable within a few hundred miles of the Pole.
In contrast, Prof Tsonis said, last week 56 per cent of the surface of the United States was covered by snow.
‘That hasn’t happened for several decades,’ he pointed out. ‘It just isn’t true to say this is a blip. We can expect colder winters for quite a while.’
He recalled that towards the end of the last cold mode, the world’s media were preoccupied by fears of freezing. For example, in 1974, a Time magazine cover story predicted ‘Another Ice Age’, saying: ‘Man may be somewhat responsible – as a result of farming and fuel burning [which is] blocking more and more sunlight from reaching and heating the Earth.’
Prof Tsonis said: ‘Perhaps we will see talk of an ice age again by the early 2030s, just as the MDOs shift once more and temperatures begin to rise.’”