Sentences with phrase «system over periods of a decade»

But the rate of global surface warming can fluctuate due to natural variations in the climate system over periods of a decade or so.»

Not exact matches

Many of the religious conflicts we read about in the newspapers have prehistories and antecedents that need to be traced over a period of several decades or longer, and many represent reactions and counterreactions to other movements both in the same society and in the larger international system.

For over two hundred years» until the outbreak of World War I» the state system emerging from the Thirty Years» War achieved its objectives (with the exception of the ideological conflict of the Napoleonic period, when the principle of nonintervention was, in effect, abandoned for two decades).

First, Happer mentions statistical significance, but global surface temperature trends are rarely if ever statistically significant (at a 95 % confidence level) over periods as short as a decade, even in the presence of an underlying long - term warming trend, because of the natural variability and noise in the climate system.

AGW means that the heat content of the whole Earth system increases, but it does not make unique predictions on the relative rates of warming of various parts of the Earth system over periods up to a couple of decades.

In recent decades, much research on these topics has raised the questions of «tipping points» and «system flips,» where feedbacks in the system compound to rapidly cause massive reorganization of global climate over very short periods of time — a truncation or reorganization of the thermohaline circulation or of food web structures, for instance, caused by the loss of sea ice or warming ocean temperatures.

Natural variability is indeed an important part of the climate system, but most prominent in its effects over short periods of a decade or two.

How do we extract value and justice from a financial system which has been rigged over a period of decades in favour of the bad guys?

This time period is too short to signify a change in the warming trend, as climate trends are measured over periods of decades, not years.12, 29,30,31,32 Such decade - long slowdowns or even reversals in trend have occurred before in the global instrumental record (for example, 1900 - 1910 and 1940 - 1950; see Figure 2.2), including three decade - long periods since 1970, each followed by a sharp temperature rise.33 Nonetheless, satellite and ocean observations indicate that the Earth - atmosphere climate system has continued to gain heat energy.34

«By way of comparison, the University of Alabama Huntsville (UAH) Lower Troposphere CONUS trend over this period is 0.25 °C / decade and Remote Sensing Systems (RSS) has 0.23 °C / decade, the average being 0.24 °C / decade.

Wouldn't a natural climate system response time of several decades make it almost impossible to get meaningful averages out of climate system variables, if they could be significantly influenced by random fluctuations accumulated over such long time periods?