Paleoglaciated landscapes in Simen and other high-mountain areas of Ethiopia

In the present-day Ethiopia, glaciated landscapes do not exist, but paleoglaciated landscapes have been documented on a few mountain tops, which have altitudes higher than about 4,350 m asl in northern Ethiopia (Simen Mountains) and about 4,100 m asl in southern Ethiopia (Arsi and Bale Mountains). Glaciers were associated with the Late Pleistocene cold stages and reached as far down as 3,760 m asl in northern and 3,200 m asl in southern Ethiopia. Bale Mountains had the most extensive Late Pleistocene glaciation, covering over 190 km2, followed by Arsi Mountains (about 85 km2). In Simen, the Late Pleistocene glaciers covered merely 13 km2. In addition, paleo-periglacial slope deposits are found on all above-mentioned paleoglaciated mountains and in further mountain systems which did not host glaciers. This allows the reconstruction of the Late Pleistocene paleoclimate as being about 8 °C colder than at present (2014), much more dry, and probably without monsoon, at least in northern Ethiopia. Most probably in the Early Holocene, the re-emergence of monsoonal rains led to a strong erosion phase, which was followed by an extended stable phase with soil formation, building up about 70-cm-deep A-horizons (Andosol) on the paleo-periglacial slope deposits. These soils have been heavily degraded due to human-induced soil erosion up to about 3800 m asl since agriculture started several decades to millennia ago.

Some Law and Economics of Historic Shipwrecks

This paper examines how US and proposed international law relate to the recovery of archaeological data from historic shipwrecks. It argues that US federal admiralty law of salvage gives far less protection to historic submerged sites than do US laws protecting archaeological sites on US federal and Indian lands. The paper offers a simple model in which the net present value of the salvage and archaeological investigation of an historic shipwreck is maximized. It is suggested that salvage law gives insufficient protection to archaeological data, but that UNESCO's Convention on the Protection of the Underwater Cultural Heritage goes too far in the other direction. It is also suggested that a move towards maximizing the net present value of a wreck would be promoted if the US admiralty courts explicitly tied the size of salvage awards to the quality of the archaeology performed.

Denver Water, Policy and Economics

An analysis of the Denver Water Department finds that it is charged with supplying water to over 1.1 million residents in the Denver Metropolitan area. With assets of over $1.2 billion dollars and a governing board of five appointed members who must make policy and financial decisions under unusual circumstances for most water districts. Those circumstances include; Colorado is the only State that has a single source of water, precipitation, State and Federal mandated water compacts that limits water resources further, and Colorado Constitutional mandated appropriation water laws. Combined together these circumstances create a difficult atmosphere for policy making and financial planning. When comparing the Denver Water Board with other water departments around the Country, the Denver Water Department seems to be competent in all areas.

Subsidiarity between Law and Economics. Research Papers in Law, 1/2005

From the Introduction. The present contribution is an attempt to raise awareness between the 'trenches' by juxtaposing the two approaches to subsidiarity. Subsequently, I shall set out why, in economics, subsidiarity is embraced as a key principle in the design and working of the Union and how a functional subsidiarity test can be derived from this thinking. Throughout the paper, a range of illustrations and examples is provided in an attempt to show the practical applicability of a subsidiarity test. This does not mean, of course, that the application of the test can automatically "solve" all debates on whether subsidiarity is (not) violated. What it does mean, however, is that a careful methodology can be a significant help to e.g. national parliaments and the Brussels circuit, in particular, to discourage careless politicisation as much as possible and to render assessments of subsidiarity comparable throughout the Union. The latter virtue should be of interest to national parliaments in cooperating, within just six weeks, about a common stance in the case of a suspected violation of the principle. The structure of the paper is as follows. Section 2 gives a flavour of very different approaches and appreciation of the subsidiarity principle in European law and in the economics of multi-tier government. Section 3 elaborates on the economics of multi-tier government as a special instance of cost / benefit analysis of (de)centralisation in the three public economic functions of any government system. This culminates in a five-steps subsidiarity test and a brief discussion about its proper and improper application. Section 4 applies the test in a non-technical fashion to a range of issues of the "efficiency function" (i.e. allocation and markets) of the EU. After showing that the functional logic of subsidiarity may require liberalisation to be accompanied by various degrees of centralisation, a number of fairly detailed illustrations of how to deal with subsidiarity in the EU is provided. One illustration is about how the subsidiarity logic is misused by protagonists (labour in the internal market). A slightly different but frequently encountered aspect consists in the refusal to recognize that the EU (that is, some form of centralisation) offers a better solution than 25 national ones. A third range of issues, where the functional logic of subsidiarity could be useful, emerges when the boundaries of national competences are shifting due to more intense cross-border flows and developments. Other subsections are devoted to Union public goods and to the question whether the subsidiarity test might trace instances of EU decentralisation: a partial or complete shift of a policy or regulation to Member States. The paper refrains from an analysis of the application of the subsidiarity test to the other two public functions, namely, equity and macro-economic stabilisation.2 Section 5 argues that the use of a well-developed methodology of a functional subsidiarity test would be most useful for the national parliaments and even more so for their cooperation in case of a suspected violation of subsidiarity. Section 6 concludes.

The four general principles of the United Nations Convention on the Rights of the Child: the potential value of the approach in other areas of human rights law

At the outset of the United Nations Convention on the Rights of the Child, the Committee on the Rights of the Child identified four of its provisions (non-discrimination; best interests of the child as a primary consideration; life, survival and development; and participation) as ‘general principles’. This approach has shaped implementation of, advocacy for and the scholarship on the Convention. The use of general principles has the potential to make a significant contribution in other areas of human rights law provided that the principles are selected carefully and address the distinct issues at the root of potential rights violations for particular rights-holders.

Diet of dingoes and other wild dogs in peri-urban areas of north-eastern Australia

Knowledge of the resource requirements of urban predators can improve our understanding of their ecology and assist town planners and wildlife management agencies in developing management approaches that alleviate human-wildlife conflicts. Here we examine food and dietary items identified in scats of dingoes in peri-urban areas of north-eastern Australia to better understand their resource requirements and the potential for dingoes to threaten locally fragmented populations of native fauna. Our primary aim was to determine what peri-urban dingoes eat, and whether or not this differs between regions. We identified over 40 different food items in dingo scats, almost all of which were mammals. Individual species commonly observed in dingo scats included agile wallabies, northern brown bandicoots and swamp wallabies. Birds were relatively common in some areas but not others, as were invertebrates. Dingoes were identified as a significant potential threat to fragmented populations of koalas. Dietary overlap was typically very high or near-identical between regions, indicating that peri-urban dingoes ate the same types or sizes of prey in different areas. Future studies should seek to quantify actual and perceived impacts of, and human attitudes towards, peri-urban dingoes, and to develop management strategies with a greater chance of reducing human-wildlife conflicts.