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Reading the Archive of Earth’s Oxygenation
Earth’s present-day environments are the outcome of a 4.5 billion year period of evolution reflecting the interaction of global-scale geological and biological processes. Punctuating that evolution were several extraordinary events and episodes that perturbed the entire Earth system and led to the creation of new environmental conditions, sometimes even to fundamental changes in how planet Earth operated. Volume 3: Global Events and the Fennoscandian Arctic Russia - Drilling Earth Project represents another kind of illustrated journey through the early Palaeoproterozoic, provided by syntheses, reviews and summaries of the current state of our understanding of a series of global events that...
Coastal Estonia
The articles show the current state of palaeoecological archaeological interdisciplinary research for the coastal area of Estonia.
PACT.
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Natural Methane Emissions in a Changing Arctic - Implications for Climate and Environment
Natural emissions of methane have received much attention over the last decade due to the documented increase of methane in the atmosphere and high global warming potential relative to CO2. Over the past few decades the Arctic has been warming approximately four times faster than the rest of the planet, driving a pressing need to assess the current and future vulnerability of various natural methane sources. In the Arctic, vast amounts of methane is stored in soils and permafrost or is being generated as permafrost thaw continues. Additionally, there are large stores of methane in Arctic gas hydrates, a solid form of concentrated methane and water, and in numerous settings, including deep-water marine areas, on continental shelves hosting relict subsea permafrost and gas hydrate, in and beneath onshore permafrost, and likely beneath the Greenland Ice Sheet. Continued climate warming is making methane leakage more likely. Even deeper conventional gas reservoirs could leak methane as the overlying permafrost degrades.
A Time to Gather
Archival Totality in the Gesamtarchiv der deutschen Juden -- Ingathering the Exiles of the Past? Bringing Archives to Jerusalem -- An Archive of Diaspora at the 'Jerusalem on the Ohio' -- Making the Past into History: Jewish Archives and Postwar Germany -- Digitization, Virtual Collections, and Total Archives in the Twenty-First Century.
