Offsetting Nature? Habitat Banking and Biodiversity Offsets in the English Land Use Planning System

Land use planning is a key arena for the spectacles of localism and marketisation being staged by our self-proclaimed greenest government ever. A new “presumption in favour of sustainable development” aims to encourage housebuilding and other development by simplifying and decentralising the planning system, while protecting the natural environment. This protection is in part to be achieved through a new market in off-site mitigation, supplementing existing policies which (can) require onsite mitigation of habitat degradation. The proposed system allows developers to offset deleterious impacts on biodiversity in one place by paying for improvements somewhere else, at a market rate. The message is that this “habitat banking” system will not only aggregate small habitats into ecologically significant reserves, while facilitating the ‘development’ we allegedly need to escape financial crisis, but also open up new income streams for landowners and reserve managers to spend on habitat conservation. By moving mitigation somewhere else, however, it will also reinforce the message that humans and other species live in separate places, that the non-human is not present in everyday life, but inhabits a separate world, which is fragile and in need of protection. This paper argues that displacing and marketising the mitigation of habitat degradation may serve to entrench this separation, thus retarding rather than facilitating the emergence of ecologically sustainable human settlements. It examines the use of habitat banking and biodiversity offsetting in the English planning system, and situates this in an international context, before offering some brief reflections on its likely effects and broader implications

After development? In defence of sustainability

The Paris Agreement was a success only for the carbon traders, sequestrators and geoengineers who are now expected to ‘balance emissions with removals’ by 2050, against a background of continued economic growth. If this is sustainable development, it is indeed discredited. But the problem is with the ‘sustainable development’ paradigm, not with the idea of sustainability. The UN’s Sustainable Development Goals explicitly call for intensified economic growth and are clearly incompatible with the allegedly overarching goal of ecological sustainability. To aim at this very different goal is simply to aim at living in a way that does not contain the seeds of its own destruction. Far from invalidating this objective, diagnoses of crisis make its pursuit more urgent than ever. ‘Why aim at sustainability?’ is an odd question to pose, but one that may nonetheless produce illuminating answers. One answer derives from intergenerational obligations, but this may not even be the most important. An orientation towards sustainability is also beneficial in its own right, since it is a key part of aiming at the good life

We'll always have Paris

Many were rightly sceptical of the Paris Agreement’s choreographed performance of success, given its reliance on theoretical carbon trading, fantastical Negative Emission Technologies (NETs), and voluntary national ‘contributions’. But was COP21 the high-water mark of climate co-operation? Can COP26 rekindle the internationalist spirit required to keep even the idea of a globally co-ordinated effort alive, in the face of resurgent nationalism and the proliferation of apparently more immediate crises? This article explores the chances of COP26 reinvigorating international co-operation, and with it the flagging credibility of the whole Paris process. It focuses in particular on the Paris Agreement’s controversial Article 6 rules on voluntary carbon trading, and the urgent need to prevent emissions traded across international borders from counting towards Nationally Determined Contributions (NDCs)

Extraction old and new: toxic legacies of mining the desert in southwestern Africa

This visual essay draws on a 2017 journey from the South African Cape to the Khan valley of Namibia, tracing toxic (deter)mining legacies of roots and routes of mineral extraction. Copper, ilmenite, diamond, zinc and uranium exploitations encounter indigenous presence and resistance as colonial and corporate mineral ‘rushes’ intersect with local realities and cultural landscapes. Environmental mitigation efforts and ‘offsetting’ schemes also leave toxic heritage in their wake as they greenwash profit-driven extractive agendas. Images from sites visited evoke the materialities and atmospheres of these localities, and connections between them

Interval-Valued Intuitionistic Fuzzy Topsis-Based Model For Troubleshooting Marine Diesel Engine Auxiliary System

In this paper, we present an interval-valued Intuitionistic Fuzzy TOPSIS model, which is based on an improved score function for detecting failure in a marine diesel engine auxiliary system, using groups of experts’ opinions to detect the root cause of failure in the engine system and the area most affected by failures in the diesel engine. The improved score function has been used for the computation of the separation measures from the intuitionistic fuzzy positive ideal solution (IFPIS) and intuitionistic fuzzy negative ideal solution (IFNIS) of alternatives while the criteria weight have been determined using an intuitionistic fuzzy entropy. The study is aimed at providing an alternative method for the identification and analysis of failure modes in engine systems. The results from the study show that although detection of failures in Engines is quite difficult to identify due to the dependency of the engine systems on each other, however using intuitionistic fuzzy multi-criteria decision-making method the faults/failure can easily be diagnosed

Modeling the Influence of a Variable Permeability Inclusion on Free-Surface Flow in an Inclined Aquifer

The interaction of sub-surface, gravity-driven flows with inclusions of different permeabilities are investigated theoretically using a model that exploits the relative shallowness of the motion. Numerically computed solutions for steady motion around cylindrical inclusions reveal a range of behaviors dependent on the ratio of the interior to exterior permeability and a dimensionless flow parameter that measures the far-field thickness to the product of the gradient of the slope down which the fluid flows and the width of the inclusion. When the inclusion is relatively narrow, the depth of the flow is little changed from its far-field value and the fluid is focused into inclusions of higher permeability and deflected around those of lower permeability. However, if the inclusion is relatively wide then three qualitatively different regimes emerge, dependent on the ratio of permeabilities. When the interior and exterior permeabilities are similar, then negligible deviation of the flow occurs apart from within thin transition layers at the boundary of the inclusion. When the permeabilities differ significantly, the flow forms deep ponds at either the upstream or downstream boundary of the inclusion for relatively low or high permeability inclusion, respectively, which arise due to deflection or focusing. In each case, asymptotic relationships are derived between the depth of the flow and the parameters. Inclusions of differing cross-section are also analyzed numerically and analytically to draw out the interplay between adjustment, deflection and focusing

Palaeozoic petroleum systems of the Orcadian Basin to Forth Approaches, Quadrants 6 - 21, UK

This report synthesises the results of the 21CXRM Palaeozoic project to describe the Carboniferous and Devonian petroleum systems of the Orcadian Basin to Forth Approaches area (Quadrants 6 – 21). Petroleum systems of the Orcadian study area that involve significant Palaeozoic elements are not wholly contained within Devonian, Carboniferous and Permian strata. A number of producing fields attest to two main proven petroleum systems; i. Co-sourced Devonian oil (with Jurassic oil) within a Jurassic reservoir: the Beatrice, Jacky and Lybster fields; ii. Jurassic-sourced oil in a Devonian and/or Carboniferous reservoir: the Buchan, Stirling, Claymore, Highlander fields. (Jurassic-sourced oil in a Permian (Zechstein) reservoir is also proven in the Carnoustie, Ettrick and Claymore fields, and in a Rotliegend reservoir in the Dee discovery). A number of additional unproven petroleum system elements are considered in this report; i. Possibilities for Devonian and Carboniferous sourcing or co-sourcing (with Jurassic oil) of Devonian, Carboniferous and Permian (Rotliegend) reservoirs in those areas underlain by proven Palaeozoic source rock; ii. Possibilities for migrated Jurassic and/or Devonian and/or Carboniferous hydrocarbons onto horst blocks and the regional Grampian High, into basement, Palaeozoic or younger reservoirs. Focusing on frontier areas north and east of the Inner Moray Firth and from the north-eastern Forth Approaches to Grampian High, integration of a large volume of seismic, well, geophysical, organic geochemistry, maturity and reservoir property data at regional scale has established: Source rocks A wide extent of potential Devonian lacustrine source rocks mapped seismically from the Inner Moray Firth to the East Orkney Basin and north of the Halibut Horst. Geochemically-typed Devonian-sourced oil shows, oil seep data outside the area of mature Kimmeridge Clay Formation, burial depth and a limited organic geochemistry/maturity dataset indicative of Devonian source rocks that are potentially mature for oil generation outside the Inner Moray Firth. Good quality gas- and oil-prone Carboniferous source rocks are mapped from the Witch Ground Graben to north eastern end of the Forth Approaches. Wells drilled on highs indicate oil-window thermal maturity levels. Oil and gas shows and basin modelling indicate Carboniferous strata buried more deeply in adjacent basins may reach gas maturity levels, with Cenozoic maturation. Key source rock intervals are: o Lower Devonian, lacustrine Struie Formation (Quadrants 11, 12), oil prone. o Middle Devonian, lacustine Orcadia Formation and Eday Group (Quadrants 11- 15 and possibly Quadrants 19, 20), oil prone. o Visean – Namurian (lower-mid Carboniferous) fluvio-deltaic Firth Coal Formation, gas and oil prone. (This unit is age-equivalent of the Scremerston and Yoredale Formations, Cleveland Group source rocks in Quadrants 25-44