Shifts Along a Spectrum: A Longitudinal Study of the Western Eurasian Realized Climate Niche

ABSTRACT

Climate niches that modern humans and earlier hominin ancestors occupied have changed dramatically over time, but the extent of those changes has gone largely undocumented. This study investigates the manner in which the realised hominin climate niche has expanded, contracted, or stayed stationary across four time periods (Last Interglacial, Last Glacial Maximum, Mid-Holocene, and 1950–2000) in Western Eurasia. Using spatially gridded general circulation model data and site locations this study examines climate variables from archaeological sites and current Western Eurasian cities to describe both the regional Western Eurasian fundamental and realised climate niches. Changes between the three prehistoric periods and modern-day time period are analysed by calculating each realised niche breadth, overlap, position, and variance. Results indicate that as global temperatures cooled from the Last Interglacial to Last Glacial Maximum, populations expanded their climate niche breadth beyond that of earlier Neanderthal groups, shifting toward regions with less seasonal variation. Conversely, Mid-Holocene humans, who saw the proliferation of both agriculture and population, contracted their realised climate niche space. The contraction and expansion of realised climate niche space illustrates how hominins have evolved the capacity to shift their niche through changes to their subsistence strategy and adaptations to overall climatic conditions.     

From London to Grenada and Back Again: Youth Exchange Geographies and the Grenadian Revolution, 1979-1983

Through a case study of three educational youth exchanges from London to the Caribbean island of Grenada in the early 1980s, this paper situates decolonisation as a site for youthful agency. Assessing official and ephemeral exchange material held in archives in London and the Caribbean alongside original oral history interviews with key actors, the paper argues that an analysis of youth exchanges as informal education spaces helps bring into focus young people’s agency in decolonisation both as a historical process and conceptual undoing. While the paper asserts that exchanging produced transformative moments of becoming in which young people’s global educational encounters transcended local perceptions of race, it also reveals youth exchanging to a revolutionary nation was no holiday, and that “youth exchange geographies” were governed, predetermined and impeded by the organisational labour of youth workers, fundraising initiatives, and unfolding international politics.     

‘That Gleaming Sword of Satire’1: Power,Passion and Parliament in the Mid-Victorian City

Political print satire, construed as an articulation of sedition and dissent, is most commonly associated in Britain with its 18th-century ‘Golden Age’. Beyond Victorian fiction, the go-to 19th-century source tends to be the hegemonic, London-centric Punch. It is not widely known that, as Punch mellowed and popularised in the 1860s and 1870s, England's booming urban centres gave rise to a distinct form of citizen journalism which used boisterous satire as an effective vehicle for sociopolitical comment, evidence-based analysis and civic activism. Not only did the provincial satirical periodical filter parliamentary affairs through a critical provincial lens but at a time when politics were largely local, it engaged with the extra-parliamentary power vested in civic and municipal governance. It aspired to much more than diversion through witty posturing. Morally and ideologically inspired, fuelled by righteous indignation, it successfully used the protest of the pen to agitate in the cause of social and political reform, demonstrating the ‘everyday’ resistance and common sense essential to liberal governmentality. Referencing some of the most enduring and respected examples of the genre – the Porcupine in Liverpool, the Town Crier in Birmingham and the Free Lance in Manchester – this article casts light upon this poorly understood journalism of conviction. A cause and effect of both emotional and intellectual release, it serves as an excellent example of citizenship as performed political passion, in an age of public conformity and restraint.