There is also the matter of shifting zone boundaries as parts of the country become slightly warmer and others slightly cooler.
However, the seasonally shifting zone where the ice ended and the open ocean began would have been extremely rich in food resources – migrating seals, sea birds, fish and the now-extinct northern hemisphere penguin-like species, the great auk.
Similarly, rejection of evolution does not always predict rejection of GCC. Figure 6 illustrates this, as the 'zone of denial' shifts from religious to political conservatism as it moves from rejection of evolution to rejection of GCC. Figure 6 The shifting zone of science denial.
In this sense, the whole Iran debate — with its receding "red lines," its shifting "zones of immunity," its threats and counter-threats, its bad metaphors and worse similes — is false.
The nearly uniformly northward shifting zones reflect increases in "average winter low temperatures between 1976 and 2005 at 8,000 weather stations". While this doesn't fully measure all the changes in climate, if this nationwide pattern is not attributable to global climate change — specifically to the global warming that scientists have concluded is unequivocal — what, pray tell, is responsible?
We know that those changes threaten to slow or reverse our hard-fought gains in peace and health, leaving our descendants a world in violent, unceasing transition, with rising seas, greater droughts, more intense storms, shifting zones of fertility and disease, and waves of climate refugees.
For the coming decades, most climate change models forecast increasing pollution, shifting zones ideal for agriculture, and possibly more extreme weather, all of which could hurt agricultural yields.
The family moved to a safer neighborhood, but violence followed as the city fractured into shifting zones of regime and rebel control.
Constant, a one-time member of the CoBrA group and the Situationist International, proposed that people of the future, freed from menial labor by mass automation, would engage in a nomadic existence, drifting through sectors of the city in search of play and pleasure, denoted by shifting zones of light and color.
Several have predicted northward shifting zones of infection with modest impacts on overall extent of distribution (Rogers and Randolph, 2000; Hay et al., 2004; Nakazawa et al., 2007).
