Search results for " climate change."
showing 10 items of 164 documents
Il clima dell’Antropocene: disamina realistica di alcune sfide di una nuova epoca
2021
The chapter systematizes and describes the ecological, conceptual, normative, and policy challenges of the Anthropocene, with a focus on the climatic transformations underway. Il looks at various scales of action and inaction, and suggests that ideal theorizing may be significantly out of step with some defining circumstances of the new epoch
Environmental drivers and abrupt changes of phytoplankton community in temperate lake Lielais Svētiņu, Eastern Latvia, over the last Post-Glacial per…
2021
Understanding the long-term dynamics of ecological communities on the centuries-to-millennia scale is important for explaining the emergence of present-day biodiversity patterns and for predicting possible future scenarios. Fossil pigments and ancient DNA present in various sedimentary deposits can be analysed to study long-term changes in ecological communities. We analysed recent compilations of data, including fossil pigments, microfossils, and molecular inventories from the sedimentary archives, to understand the impact of gradual versus abrupt climate changes on the ecosystem status of a regional model lake over the last ~14.5 kyr. Such long and complete paleo-archives are scarce in No…
Human adaptation strategies to abrupt climate change in Puerto Rico ca. 3.5 ka
2015
The connection between climatic change and social response is complex because change articulates a number of inter-related factors. Human decisions are filtered by social buffers – including social memory, risk perception, and cultural priorities – and the rate and scale of climate change is usually much larger than the scale of human decision-making. In this article, we provide information on climate change based on precisely dated speleothems with the response evident in archaeological sites that have radiocarbon date ranges within the same time frame. A stalagmite recovered from within the catchment area for aquifer recharge of the Pre-Arawak site of Angostura in Barceloneta, Puerto Ric…
Mammal assemblage composition predicts global patterns in emerging infectious disease risk
2021
Abstract As a source of emerging infectious diseases, wildlife assemblages (and related spatial patterns) must be quantitatively assessed to help identify high‐risk locations. Previous assessments have largely focussed on the distributions of individual species; however, transmission dynamics are expected to depend on assemblage composition. Moreover, disease–diversity relationships have mainly been studied in the context of species loss, but assemblage composition and disease risk (e.g. infection prevalence in wildlife assemblages) can change without extinction. Based on the predicted distributions and abundances of 4466 mammal species, we estimated global patterns of disease risk through …
The role of hydrology on enhanced weathering for carbon sequestration I. Modeling rock-dissolution reactions coupled to plant, soil moisture, and car…
2021
Abstract Enhanced Weathering (EW) resulting from soil amendment with highly reactive silicate minerals is regarded as one of the most effective techniques for carbon sequestration. While in laboratory conditions silicate minerals dissolution rates are well characterized, in field conditions the rate of the dissolution reaction is more difficult to predict, not least because it interacts with soil, plant, and hydrologic processes. Here we present a dynamic mass balance model connecting biogeochemical and ecohydrological dynamics to shed light on these intertwined processes involved in EW. We focus on the silicate mineral olivine, for its faster laboratory dissolution rate, and pay particular…
MODELING THE INFLUENCE OF THE CLIMATE CHANGE ON THE VEGETATION PATTERN VARIATION USING A CELLULAR AUTOMATA MODEL
2014
KLUM@GTAP: SPATIALLY EXPLICIT, BIOPHYSICAL LAND USE IN A COMPUTABLE GENERAL EQUILIBRIUM MODEL
2009
Educare alla sostenibilità. Percezioni e rappresentazioni del cambiamento climatico nella scuola secondaria di II grado: i casi di Palermo e Catanzar…
2021
Questo contributo propone uno studio sulle modalità di percezione del cambiamento climatico da parte dei giovani di età compresa tra i 16 e i 20 anni che vivono nei capoluoghi di due città del Sud Italia, Palermo, capoluogo della Sicilia e Catanzaro, capoluogo della Calabria. Attraverso interviste etnografiche, basate sull’utilizzo di un questionario aperto e sull’osservazione partecipante condotta in due scuole secondarie di secondo grado (una per ogni regione succitata), si è cercato di ricostruire il grado di consapevolezza degli studenti intervistati rispetto al cambiamento climatico in atto, chiedendo loro di indicare quali siano le forme di conoscenza implicate, le possibili cause del…
Grapevine row orientation mediated temporal and cumulative microclimatic effects on grape berry temperature and composition
2021
Abstract Ambient radiation and temperature are global drivers of grapevine growth, grape yield and composition, and wine quality. Knowledge of the implications of vineyard row orientation/microclimate is required for decision-making in current and future macro- and mesoclimates. Temporal and cumulative microclimatic changes, induced by vine row orientation (NS; EW; NE-SW; NW-SE) of vertically trellised Shiraz grapevines, on berry pulp temperature and composition at different ripeness levels were investigated. Berries dynamically gained heat energy relative to: ambient climate/weather; direct canopy wall/bunch irradiance; and berry skin colour development. Berries exposed to direct solar rad…
An Analytic Hierarchy Process for The Evaluation of Transport Policies to Reduce Climate Change Impacts
2007
Transport is the sector with the fastest growth of greenhouse gases emissions, both in developed and in developing countries, leading to adverse climate change impacts. As the experts disagree on the occurrence of these impacts, by applying the analytic hierarchy process (AHP), we have faced the question on how to form transport policies when the experts have different opinions and beliefs. The opinions of experts have been investigated by a means of a survey questionnaire. The results show that tax schemes aiming at promoting environmental-friendly transport mode are the best policy. This incentives public and environmental-friendly transport modes, such as car sharing and car pooling.