Digital currency and geopolitics: the challenge between United States and China. – This research focuses on the potentially revolutionary role of the Chinese digital currency, the Electronic Renminbi, in reshaping the Chinese banking system and transnational geopolitical and economic dynamics. The e-RMB, part of the Chinese reform agenda since 2015, aims to redefine international balances by challenging the dominance of the US dollar. The Chinese strategy, exemplified by initiatives like the Belt and Road Initiative, seeks to transition from American unipolarity to a multipolar system, ensuring stability for China’s economic growth. The e-RMB presents a seemingly liberal standard with privacy guarantees, but it actually aims to build a parallel system based on authoritarian capitalism and surveillance in the new territories of cyberspace.

Geospatial methodologies for the monitoring of eutrophication of water bodies. – As collective awareness of environmental issues increases, the debate on water pollution becomes more focused on all anthropogenic activities (industrial, agricultural and domestic discharges, waste management) that cause water eutrophication. This paper aims to highlight how the use of GIS makes it possible to examine soil erosion and to calculate the theoretical load re-located over time in watersheds by human activities. The USLE/RUSLE and CREAMS models, coupled with satellitary data, allow to examine the evolution of land and watersheds. In the first part of the paper, the focus was on the Mediterranean, one of the most polluted seas on the planet; in the second part, the watersheds of the Rio Santa Lucia, Rio San Girolamo and other minor ones in south-western Sardinia were investigated. The research highlighted the connection between spatial planning and environmental processes, underlining the importance of best practices of territory management, especially in contexts with water vulnerability. The objective is to set up an integrated methodology to monitor soil erosion and eutrophication of water resources, in order to identify strategies and actions to mitigate these phenomena.