TY - JOUR A1 - Daskalopoulou, Kyriaki A1 - D'Alessandro, Walter A1 - Longo, Manfredi A1 - Pecoraino, Giovannella A1 - Calabrese, Sergio T1 - Shallow sea gas manifestations in the Aegean Sea (Greece) as natural analogs to study ocean acidification BT - first catalog and geochemical characterization JF - Frontiers in Marine Science N2 - The concepts of CO2 emission, global warming, climate change, and their environmental impacts are of utmost importance for the understanding and protection of the ecosystems. Among the natural sources of gases into the atmosphere, the contribution of geogenic sources plays a crucial role. However, while subaerial emissions are widely studied, submarine outgassing is not yet well understood. In this study, we review and catalog 122 literature and unpublished data of submarine emissions distributed in ten coastal areas of the Aegean Sea. This catalog includes descriptions of the degassing vents through in situ observations, their chemical and isotopic compositions, and flux estimations. Temperatures and pH data of surface seawaters in four areas affected by submarine degassing are also presented. This overview provides useful information to researchers studying the impact of enhanced seawater CO2 concentrations related either to increasing CO2 levels in the atmosphere or leaking carbon capture and storage systems. KW - CO2 emissions KW - submarine gas vents KW - geogenic degassing KW - environmental KW - impact KW - Greek Islands KW - gas flux Y1 - 2022 U6 - https://doi.org/10.3389/fmars.2021.775247 SN - 2296-7745 VL - 8 PB - Frontiers Media CY - Lausanne ER - TY - JOUR A1 - Neill, Christopher A1 - Jankowski, KathiJo A1 - Brando, Paulo M. A1 - Coe, Michael T. A1 - Deegan, Linda A. A1 - Macedo, Marcia N. A1 - Riskin, Shelby H. A1 - Porder, Stephen A1 - Elsenbeer, Helmut A1 - Krusche, Alex V. T1 - Surprisingly Modest Water Quality Impacts From Expansion and Intensification of Large-Sscale Commercial Agriculture in the Brazilian Amazon-Cerrado Region JF - Tropical conservation science N2 - Large-scale commercial cropping of soybeans expanded in the tropical Amazon and Cerrado biomes of Brazil after 1990. More recently, cropping intensified from single-cropping of soybeans to double-cropping of soybeans with corn or cotton. Cropland expansion and intensification, and the accompanying use of mineral fertilizers, raise concerns about whether nutrient runoff and impacts to surface waters will be similar to those experienced in commercial cropland regions at temperate latitudes. We quantified water infiltration through soils, water yield, and streamwater chemistry in watersheds draining native tropical forest and single-and double-cropped areas on the level, deep, highly weathered soils where cropland expansion and intensification typically occurs. Although water yield increased four-fold from croplands, streamwater chemistry remained largely unchanged. Soil characteristics exerted important control over the movement of nitrogen (N) and phosphorus (P) into streams. High soil infiltration rates prevented surface erosion and movement of particulate P, while P fixation in surface soils restricted P movement to deeper soil layers. Nitrogen retention in deep soils, likely by anion exchange, also appeared to limit N leaching and export in streamwater from both single-and double-cropped watersheds that received nitrogen fertilizer. These mechanisms led to lower streamwater P and N concentrations and lower watershed N and P export than would be expected, based on studies from temperate croplands with similar cropping and fertilizer application practices. KW - water KW - quality KW - agriculture KW - intensification KW - impact Y1 - 2017 U6 - https://doi.org/10.1177/1940082917720669 SN - 1940-0829 VL - 10 PB - Sage Publ. CY - Thousand Oaks ER - TY - JOUR A1 - Bubeck, Philip A1 - Kreibich, Heidi A1 - Penning-Rowsell, E. C. A1 - Botzen, W. J. Wouter A1 - de Moel, H. A1 - Klijn, F. T1 - Explaining differences in flood management approaches in Europe and in the USA - a comparative analysis JF - Journal of flood risk management N2 - Flood risk management in Europe and worldwide is not static but constantly in a state of flux. There has been a trend towards more integrated flood risk management in many countries. However, the initial situation and the pace and direction of change is very different in the various countries. In this paper, we will present a conceptual framework that seeks to explain why countries opt for different flood risk management portfolios. The developed framework utilises insights from a range of policy science concepts in an integrated way and considers, among others, factors such as geographical characteristics, the experience with flood disasters, as well as human behavioural aspects. KW - Flood risk management KW - impact KW - policy Y1 - 2017 U6 - https://doi.org/10.1111/jfr3.12151 SN - 1753-318X VL - 10 SP - 436 EP - 445 PB - Wiley CY - Hoboken ER -