Sentences with phrase «century warming period»

So, we don't know how they behaved during the early 20th century warm period (1920s - 1940s).

Note that I research and illustrate the late 20th Century warming period for a number of reasons.

Based on this Figure, it is widely apparent that the current warm period far exceeds the early century warm period in both rate (slightly) and magnitude.

SAT observations and model simulations indicate that the nature of the arctic warming in the last two decades is distinct from the early twentieth - century warm period.

Obviously, this type of decadal analysis reveals an abundance of similarities shared by the two 20th century warming periods.

It may well be that the recent warm period was warmer than the early 20th century warm period, as the raw data suggests... Or it may be that biases in the raw data are substantial, and the early 20th century warm period was just as warm as the recent warm period, or maybe even warmer.

All we know clearly is that CO2 doesn't appear to have been a significant factor in the early 20th Century warming period, but does appear to be at least a significant factor in the warming between 1970 and around 2000.

So, resolving the urbanization bias problem is necessary to address issues such as how the recent warm period compared to the early 20th century warm period.

As I discussed previously, the Arctic has warmed rapidly over the last century but this warming has occurred in two phases with an early century warm period (1910 - 1950) and a late - century warm period (1975 - present).

The late 20th century warming period is therefor eclearly not «unprecendented» even within the last 100 years let alone 100 years as Michael Mann's (and Keith Briffa's) cherry picking of proxies and use of «novel statistical methods» like de-centred PCA would have us all believe.