Sustainable land use against the background of a growing wind power industry

Among the measures discussed as remedies for CO2 emissions reduction renewable energies are prominent as they already provide marketable alternatives to fossil fuels. This holds true especially for wind power, which has multiplied more than twelve-fold on the global scale from 4,800 MW to over 59,000 MW between 1995 and 2005. This is the highest growth rate compared to all other sources of renewable energy. However, is this impressive expansion expected to continue in the near future? Although wind power as a clean technology helps to combat global warming and, as a renewable energy reduces the dependency on the supply of exhaustible fossil fuels, it is not without flaws. There are concerns over adverse effects on human beings, on wildlife and on the landscape. This paper discusses the limits for wind power generation and highlights important conflict areas that may roadblock further expansion of wind power and thus its potential to combat global warming. --

How to play fair in international environmental agreements? - Bridging psychological and economic methods

Global public good provision (e.g. environmental quality) confronts us with problems demanding both national and international co-operation. However among sovereign nations reaching agreement on mutual public good provision is difficult. Slowing down global warming is just one example. Due to the diffusion of greenhouse gases in the earth's atmosphere it is attractive for each individual state that other countries commit themselves to climate protection, whereas one's own state using the free-rider-strategy benefits from the protective measures of the others without making any costly national contribution. On the other hand such a strategic behaviour clashes with moral values, especially concerning motives of justice within society. Should free-riding be preferred from the strategic point of view or rather, out of consideration to justice, national commitments to contribute to climate protection? Therefore, an analysis of how appraisals of justice and strategic considerations interact is a challenge to international (environmental) policy. Taking a game-theoretic point of view, we analyse three psychological-empirical conceptions of justice: need, equality and equity, and point out how these principles are able to determine the type of game nations are expected to play. --

Environment

Many environmental problems are large scale in terms of geographical units and long-term with regard to time. We therefore find a coincidence of different causes and impacts that qualify the interplay between humans and nature as highly uncertain (“transparency challenge”). In consequence we see a need for innovative analytical methods and modelling approaches to supplement the traditional monitoring-based approach in environmental policy. This should allow capturing different degrees of uncertainty which in general is out of power of any monitoring activity. Moreover, with regard to the design of monitoring approaches it requires collecting and connecting data from different fields of social activities in regard of a divergence of natural and social systems’ boundaries. This requires the provision of sufficient, frequently huge data sets (“availability challenge”) that need to fit with each other (“compatibility challenge”). Even if these challenges are met data processing remains a very complex and time-consuming task which should be supported by a user-friendly infrastructure. We here see a comparative advantage in using the GIS technology and a nested structure for data provision supporting the up and down scaling of information and the access of data from different perspectives (“connectivity challenge”) - a polluters, a victims and a regulators point of view.Coincidence of causes and impacts, transparency challenge, availability challenge, compatibility challenge, connectivity challenge, GIS technology, nested structure of data provision

Criteria for ILTSER (International Long Term Socio-Ecological Research) Sites selection

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Environment

Many environmental problems are large scale in terms of geographical units and long-term with regard to time. We therefore find a coincidence of different causes and impacts that qualify the interplay between humans and nature as highly uncertain ("transparency challenge"). In consequence we see a need for innovative analytical methods and modelling approaches to supplement the traditional monitoring-based approach in environmental policy. This should allow capturing different degrees of uncertainty which in general is out of power of any monitoring activity. Moreover, with regard to the design of monitoring approaches it requires collecting and connecting data from different fields of social activities in regard of a divergence of natural and social systems' boundaries. This requires the provision of sufficient, frequently huge data sets ("availability challenge") that need to fit with each other ("compatibility challenge"). Even if these challenges are met data processing remains a very complex and time-consuming task which should be supported by a user-friendly infrastructure. We here see a comparative advantage in using the GIS technology and a nested structure for data provision supporting the up and down scaling of information and the access of data from different perspectives ("connectivity challenge") - a polluters, a victims and a regulators point of view

Managing land use and land cover change in the biodiversity context with regard to efficiency, equality and ecological effectiveness

The introduction of conservation-friendly farming measures is an important tool for biodiversity conservation. Recently, a debate has started whether this money is spent effectively, i.e. whether it successfully contributes to conserve biodiversity in agricultural landscapes. Several types of criticism have been raised that are adequately responded by environmental policies leading to spatially and temporally heterogeneous habitats. However existing policies for species conservation are still designed to support one conservation measure only by paying an equal amount of compensation to all land-users carrying out the corresponding measure. Regarding ecological findings we firstly point out in which cases environmental policies have to be differentiated in space and time. Secondly, we analyse the necessary and sufficient conditions for transfer schemes to exist that are able to introduce a spatio-temporally heterogeneous land use and land cover type. Thirdly, we reveal that strategic considerations of land-owners limit efficiency and fairness considerations of the policy makers when determining the ecologically accurate payment scheme. However ' surprisingly ' if policy makers seek to minimise their budget required for implementing the desired policy goal, this at the same time guarantees that the individual profits of the land-owners (when performing with the desired policy goal) are as equal as feasible. --

A modelling approach for allocating land-use in space to maximise social welfare - exemplified on the problem of wind power generation

Land-use conflicts arise if land is scarce, land-use types are mutually exclusive, and vary in their effects with regard to more than one incongruent policy objective. If these effects depend on the spatial location of the land-use measures the conflict can be mediated through an appropriate spatial allocation of land use. An example of this conflict is the welfare-optimal allocation of wind turbines (WT) in a region in order to achieve a given energy target at least social costs. The energy target is motivated by the fact that wind power production is associated with relatively low CO2 emissions and is currently the most efficient source of renewable energy supply. However, it is associated with social costs which comprise energy production costs as well as external costs caused by harmful impacts on humans and biodiversity. We present a modelling approach that combines spatially explicit ecological-economic modelling and choice experiments to determine the welfare-optimal spatial allocation of WT in Western Saxony, Germany. We show that external costs are significant. The welfare-optimal sites are therefore not those with the highest energy output (i.e., lowest production costs). However, they show lower external costs than the most productive sites. A sensitivity analysis reveals that the external costs represent about seven percent of the total costs (production costs plus external costs). Increasing the energy production target increases both production and external costs. The absolute (percentage) increase of production costs is higher (lower) than that of external costs. --choice experiment,ecological-economic modelling,externality,spatial allocation,welfare-optimal,wind power

DAPSET - Concept for characterising socio-economic drivers of and pressures on biodiversity

This article develops eleven criteria focusing on the relative importance and strength of different, especially socio-economic drivers of and pressures on biodiversity. These refer to the syndrome concept designed to assess global environmental risks and the DPSIR framework developed to guide integrative assessment of links between human activities and degradation of the natural environment. The aim is (a) coordinating inter-disciplinary research on distinguishing characteristics of drivers and pressures, (b) structuring interdisciplinary discussions on scale and cross-scale dynamics in assessment of biodiversity change as well as (c) setting priorities in policy making and implementation of response actions. --Biodiversity change,assessment criteria,setting priorities in driver-pressure management