Browse Items (128 total)
- Collection: Environmental Systems & Societies
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Geographies of race and ethnicity 1
In this report I compare two forms of racism: white privilege and white supremacy. I examine how they are distinct and can be seen in the environmental racism arena. I argue that within US geographic scholarship white privilege has become so…
Ecosystems: Time to model all life on Earth
The authors discuss the importance for international authorities such as the Intergovernmental Platform on Biodiversity and Ecosystem Services to simulate the physics and chemistry of the ecosystem to better understand the climate system. They…
Migration, Urbanization, and Political Power in Sub-Saharan Africa
African political geographies have been overlooked in the discussion of internal migration and urbanization. Yet institutional changes since the early 1990s altered the practices of acquiring and keeping power across Africa, and it is now possible to…
Thermal biases and vulnerability to warming in the world’s marine fauna
A critical assumption underlying projections of biodiversity change associated with global warming is that ecological communities comprise balanced mixes of warm-affinity and cool-affinity species which, on average, approximate local environmental…
North Pacific deglacial hypoxic events linked to abrupt ocean warming
Marine sediments from the North Pacific document two episodes of expansion and strengthening of the subsurface oxygen minimum zone (OMZ) accompanied by seafloor hypoxia during the last deglacial transition1, 2, 3, 4. The mechanisms driving this…
Holocene shifts in the assembly of plant and animal communities implicate human impacts
Understanding how ecological communities are organized and how they change through time is critical to predicting the effects of climate change1. Recent work documenting the co-occurrence structure of modern communities found that most significant…
Seismic evidence of effects of water on melt transport in the Lau back-arc mantle
Tomographically derived seismic velocities are used to infer the distribution of partial melt below the Lau Basin, revealing an unexpected relationship between the amount of in situ melt and the water content of the magma, indicating that subducted…
Broad plumes rooted at the base of the Earth's mantle beneath major hotspots
A whole-mantle seismic imaging technique, combining accurate wavefield computations with information contained in whole seismic waveforms, is used to reveal the presence of broad conduits beneath many of Earth’s surface hotspots, supporting the idea…
Invasion, Competition, and Biodiversity Loss in Urban Ecosystems
The global decline in biodiversity as a result of urbanization remains poorly understood. Whereas habitat destruction accounts for losses at the species level, it may not explain diversity loss at the community level, because urban centers also…
Geography, Globalization, and the Problematic of Area Studies
There has been considerable debate about the challenges and opportunities posed for geographical scholarship by globalization. In similar contexts, however, the discipline's relationship to area studies merits careful review and reworking. Three…
Defining the Anthropocene
Time is divided by geologists according to marked shifts in Earth’s state. Recent global environmental changes suggest that Earth may have entered a new human-dominated geological epoch, the Anthropocene. Here we review the historical genesis of the…
Political geography - political geographies of globalization III: resistance
The article examines the political geographies of globalization of resistance. The author also explores the role of romance as an alternative tragic elements in less comforting reexaminations of resistance. In connection, he mentions about the study…
Icebergs not the trigger for North Atlantic cold events
A delay between surface cooling and the arrival of ice-rafted debris at a site southwest of Iceland over the past four glacial cycles implies that icebergs typically arrived too late to have triggered cooling, although the freshwater derived from…
Australia is ‘free to choose’ economic growth and falling environmental pressures
A multi-model framework that accounts for climate, water, energy, food, biodiversity and economic activity in Australia reveals that a sustainable society that enjoys economic improvement without ecological deterioration is possible, but that…
Plate tectonics on the Earth triggered by plume-induced subduction initiation
Scientific theories of how subduction and plate tectonics began on Earth—and what the tectonic structure of Earth was before this—remain enigmatic and contentious1. Understanding viable scenarios for the onset of subduction and plate tectonics2, 3 is…
Plate tectonics on the Earth triggered by plume-induced subduction initiation
Scientific theories of how subduction and plate tectonics began on Earth—and what the tectonic structure of Earth was before this—remain enigmatic and contentious1. Understanding viable scenarios for the onset of subduction and plate tectonics2, 3 is…
Mapping tree density at a global scale
Ground-sourced tree density data is assembled to provide a global map of tree density, which reveals that there are three trillion trees (tenfold more than previous estimates); tree numbers have declined by nearly half since the start of human…
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Uwekind Harvard Style Referencing Guide
Като ученици в International School Uwekind вие знаете, че голяма част от учебния процес е базиран на проучвания. Затова е важно при създаването на…