Why have sea surface temperatures and proxy temperature reconstructions so strongly diverged from the instrumental land record in recent decades?
Because “0.36 ± 0.04 °C” of non-climatic warming is from roofs, asphalt, machines, vehicles…artificially enhance the post-1950’s global temperature trend.
A new analysis (Scafetta, 2021) suggests:
• Urban Heat Island (UHI) effects can raise city temperatures 6-9°C above the temperatures in surrounding rural areas. These significant biases are not sufficiently removed from instrumental records.
• Sea surface temperatures and land temperatures showed matching variations and amplitudes from 1900 to 1980. After 1980, land surface temperatures rose substantially more, suggesting nearly half of the land temperature increase is non-climatic.
• Tree-ring temperature reconstructions showed a strikingly similar pattern of amplitude and oscillation prior to the 1980s. After the 1980s, the instrumental record claims more than twice as much warming as the proxy records.
• Between 25-45% of the warming from 1940-1960 to 2000-2020 appears to be artificial, or non-climatic.
• Climate models overestimate the 1940-1960 to 2000-2020 climatic warming by about 40% in hindcasts.
Read more at No Tricks Zone
In Australia, leafy suburban lawns have long been pilloried for their supposed role in climate change. This merely illustrates how ridiculous the alarmist position is.
The rural planet is greening, just as the urban parts of it are greying and warming with every new strip of concrete and asphalt etc. Lawns help cool that concrete jungle.
Nothing, however, seems to cool the hot-headedness of the alarmists, though. There is a push by hardline cultural neo-Marxists to raise the acceptability of one plus one equalling three or four.
With climate change, it already does.
So if I stand in the middle of an asphalt parking lot it is a whole lot hotter than standing in the middle of a field? Whodathunk it?
Yes, even in the rural part of Georgia USA where I live the local towns are always a 1 or 2 degree warmer in the summer time. The towns heat island effect also tends to draw more rain to their area, while we in the country need more rain.
Has anyone started a study comparing urban trees versus rural trees? Old trees are everywhere. Such a study could be started now. It would be interesting to collect data from trees that started as rural saplings and died urban.