Sentences with phrase «role of natural variability»

The exact combinations and percentages of forcings that produced the MWP and the LIA, for example, might not be known, nor the exact role of natural variability, but the general forcings that existed on the climate during these relatively recent periods are understood and do match up with the general warming or cooling of the periods.

Whatever the respective roles of natural variability and AGW, these wild swings do not inspire confidence in a semi-stable system (and the same goes, unfortunately, for the Antarctic).

Population growth coupled to the fact that extreme heat is the leading weather - related cause of death in the US calls for the need to identify the relative roles of natural variability and human - caused climate change on these extremes.

Having better constraints on the timing and magnitude of past climate changes should ultimately lead to better constraints on climate sensitivity and the role of natural variability in the climate system.

The problem for the IPCC in using this argument is that it has consistently downplayed the role of natural variability, as MIT's Richard Lindzen has pointed out.

Prof. Judith Curry (another IPCC author) also believes that the failure of the climate models to predict the «pause» in global warming indicates that the IPCC has substantially underestimated the role of natural variability in recent climate change, e.g., see here, here, here or here.

In particular he believes that the role of natural variability in recent climate change is hard to quantify, and that the claims that various extreme weather events are due to man - made global warming are unjustified.

Swanson et al. (2009) examined the role of natural variability on global surface temperatures and found that it rarely exceeds 0.2 — 0.3 °C, and averages out to approximately zero over longer timeframes (Figure 4).

By Simon of Australian Climate Madness The role of natural variability in climate must be squashed at all costs.

It is that experience that enables meteorologists to properly determine the role of natural variability to a particular event.

Deser, C., Knutti, R., Solomon, S. & Phillips, A. S. Communication of the role of natural variability in future North American climate.