Transparency in Environmental and Resource Governance : Theories of Change for the EITI

AbstractTransparency is now a core principle in environmental and resource governance. Responding to calls for a clearer identification of pathways from transparency to effective change, this article identifies three “Theories of Change” for governance-by-disclosure and applies them to the Extractive Industries Transparency Initiative (EITI). Among the best known global transparency initiatives, the EITI has used an inclusive multistakeholder governance model and elaborate compliance standards, disclosing trillions of dollars in natural resource revenues. Yet, after two decades, the EITI is still largely without an explicit and proven theory. This study finds that a Theory of Change for the EITI is possible, valuable, and even necessary as the EITI risks becoming obsolete in some participating countries. The proposed Theories of Change provide valuable templates for environmental and resource governance, yet such models need to reflect national contexts, needs, challenges, and objectives to ensure fit and effective implementation, including measures enforcing accountability.Abstract Transparency is now a core principle in environmental and resource governance. Responding to calls for a clearer identification of pathways from transparency to effective change, this article identifies three “Theories of Change” for governance-by-disclosure and applies them to the Extractive Industries Transparency Initiative (EITI). Among the best known global transparency initiatives, the EITI has used an inclusive multistakeholder governance model and elaborate compliance standards, disclosing trillions of dollars in natural resource revenues. Yet, after two decades, the EITI is still largely without an explicit and proven theory. This study finds that a Theory of Change for the EITI is possible, valuable, and even necessary as the EITI risks becoming obsolete in some participating countries. The proposed Theories of Change provide valuable templates for environmental and resource governance, yet such models need to reflect national contexts, needs, challenges, and objectives to ensure fit and effective implementation, including measures enforcing accountability

Has the EITI been successful? Reviewing evaluations of the Extractive Industries Transparency Initiative

Has the EITI been successful? Many efforts have been devoted to improving resource governance through the Extractive Industries Transparency Initiative. A review of 50 evaluations concludes that the EITI has succeeded in diffusing the norm of transparency, establishing the EITI standard, and institutionalizing transparency practices. Yet, there remains an evidence gap with regard to the mechanisms linking EITI adoption and development outcomes. Addressing this gap will require developing a theory of change for the EITI and demonstrating causality through more sophisticated methods. The cost-effectiveness of the EITI will also need to be compared to other policy options

The influence of soil communities on the temperature sensitivity of soil respiration

Soil respiration represents a major carbon flux between terrestrial ecosystems and the atmosphere, and is expected to accelerate under climate warming. Despite its importance in climate change forecasts, however, our understanding of the effects of temperature on soil respiration (RS) is incomplete. Using a metabolic ecology approach we link soil biota metabolism, community composition and heterotrophic activity, to predict RS rates across five biomes. We find that accounting for the ecological mechanisms underpinning decomposition processes predicts climatological RS variations observed in an independent dataset (n = 312). The importance of community composition is evident because without it RS is substantially underestimated. With increasing temperature, we predict a latitudinal increase in RS temperature sensitivity, with Q10 values ranging between 2.33 ±0.01 in tropical forests to 2.72 ±0.03 in tundra. This global trend has been widely observed, but has not previously been linked to soil communities

Effects of soil warming and nitrogen foliar applications on bud burst of black spruce

Key message: In mature black spruce, bud burst process is anticipated by soil warming, while delayed by foliar applications of nitrogen; however, the effects depend on growth conditions at the site. Abstract: The observation of phenological events can be used as biological indicator of environmental changes, especially from the perspective of climate change. In boreal forests, the onset of the bud burst is a key factor in the length of the growing season. With current climate change, the major factors limiting the growth of boreal trees (i.e., temperature and nitrogen availability) are changing and studies on mature trees are limited. The aim of this study was to investigate the effects of soil warming and increased nitrogen (N) deposition on bud burst of mature black spruce [Picea mariana (Mill.) BSP]. From 2008 onwards, an experimental manipulation of these environmental growth conditions was conducted in two stands (BER and SIM) at different altitudes in the boreal forest of Quebec, Canada. An increase in soil temperature (H treatment) and a canopy application of artificial rain enriched with nitrogen (N treatment) were performed. Observations of bud phenology were made during May–July 2012 and 2013. In BER, H treatment caused an anticipation (estimated as 1–3 days); while N treatment, a delay (estimated as 1–2 days but only in 2012) in bud burst. No treatments effect was significant in SIM. It has been demonstrated that soil temperature and N availability can play an important role in affecting bud burst in black spruce but the effects of these environmental factors on growth are closely linked with site conditions

Soil surface temperatures reveal moderation of the urban heat island effect by trees and shrubs

Urban areas are major contributors to air pollution and climate change, causing impacts on human health that are amplified by the microclimatological effects of buildings and grey infrastructure through the urban heat island (UHI) effect. Urban greenspaces may be important in reducing surface temperature extremes, but their effects have not been investigated at a city-wide scale. Across a midsized UK city we buried temperature loggers at the surface of greenspace soils at 100 sites, stratified by proximity to city centre, vegetation cover and land-use. Mean daily soil surface temperature over 11 months increased by 0.6 °C over the 5 km from the city outskirts to the centre. Trees and shrubs in non-domestic greenspace reduced mean maximum daily soil surface temperatures in the summer by 5.7 °C compared to herbaceous vegetation, but tended to maintain slightly higher temperatures in winter. Trees in domestic gardens, which tend to be smaller, were less effective at reducing summer soil surface temperatures. Our findings reveal that the UHI effects soil temperatures at a city-wide scale, and that in their moderating urban soil surface temperature extremes, trees and shrubs may help to reduce the adverse impacts of urbanization on microclimate, soil processes and human health

Effect of ultrasonication and use of aminopeptidase from Aeromonas proteolytica on quality parameters of fish protein hydrolysates from side streams of Atlantic mackerel (Scomber scombrus)

In the present study, both ultrasonication (US) and enzymatic treatment with aminopeptidase from Aeromonas proteolytica (AAP) were applied as a post-treatment to fish protein hydrolysates (FPH) recovered from Atlantic mackerel. The single and combined effects of AAP and US treatments at 300 W and 500 W at 20 kHz for 10 min on the physicochemical characteristics of FPH were assessed. The results showed a significant decrease (p < 0.05) in soluble proteins after application of US treatment of FPH at 300 W and 500 W (79.1 and 70.3%, respectively) and US treatment at 300 W and 500 W together with AAP (50.3 and 72.5%, respectively) compared to control (84.4%). This is due to cavitation effect of sonication resulting in aggregation of peptides. This decrease was accompanied by a significant decrease in thiol groups in all experimental FPH samples varying from 5.85 to 9.54 nmol/mg compared to control (12.86 nmol/mg). At the same time, there was a significant increase in the distribution of small peptides with molecular weight (MW) between 200 and 1,000 Da along with a significant decrease in medium-size peptides with MW of 1,000 and 5,000 Da in all AAP-treated FPH samples compared to FPH without AAP. The proportion of essential amino acids increased significantly (p < 0.05) in all experimental FPH samples varying from 28.2 to 29.1% except for 500 W + AAP (24.2%) compared to control (25.7%), revealing a positive combined effect of AAP and US treatment on nutritional profile of mackerel hydrolysates. However, there was no significant difference in the proportion of hydrophobic free amino acids responsible for bitter taste between any of experimental FPH samples and control. Regarding color parameters, there was a significant increase in lightness accompanied by a significant decrease in redness in all US-treated FPH samples compared to control due to ultrasound-induced cavitation effect changing the secondary structure of peptide molecules. The novel approach of combined use of US and AAP to improving physicochemical parameters of mackerel FPH may provide valuable insights into process optimization for enhanced quality and functional properties of fish protein ingredients

Is the northern high-latitude land-based CO2 sink weakening?

Author Posting. © American Geophysical Union, 2011. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 25 (2011): GB3018, doi:10.1029/2010GB003813.Studies indicate that, historically, terrestrial ecosystems of the northern high-latitude region may have been responsible for up to 60% of the global net land-based sink for atmospheric CO2. However, these regions have recently experienced remarkable modification of the major driving forces of the carbon cycle, including surface air temperature warming that is significantly greater than the global average and associated increases in the frequency and severity of disturbances. Whether Arctic tundra and boreal forest ecosystems will continue to sequester atmospheric CO2 in the face of these dramatic changes is unknown. Here we show the results of model simulations that estimate a 41 Tg C yr−1 sink in the boreal land regions from 1997 to 2006, which represents a 73% reduction in the strength of the sink estimated for previous decades in the late 20th century. Our results suggest that CO2 uptake by the region in previous decades may not be as strong as previously estimated. The recent decline in sink strength is the combined result of (1) weakening sinks due to warming-induced increases in soil organic matter decomposition and (2) strengthening sources from pyrogenic CO2 emissions as a result of the substantial area of boreal forest burned in wildfires across the region in recent years. Such changes create positive feedbacks to the climate system that accelerate global warming, putting further pressure on emission reductions to achieve atmospheric stabilization targets.This study was supported through grants provided as part of the Arctic System Science Program (NSF OPP‐ 0531047), the North American Carbon Program (NASA NNG05GD25G), and the Bonanza Creek Long‐Term Ecological Program (funded jointly by NSF grant DEB‐0423442 and USDA Forest Service, Pacific Northwest Research Station grant PNW01‐JV11261952‐231)

Environmental and vegetation controls on the spatial variability of CH4 emission from wet-sedge and tussock tundra ecosystems in the Arctic

Aims Despite multiple studies investigating the environmental controls on CH4 fluxes from arctic tundra ecosystems, the high spatial variability of CH4 emissions is not fully understood. This makes the upscaling of CH4 fluxes from plot to regional scale, particularly challenging. The goal of this study is to refine our knowledge of the spatial variability and controls on CH4 emission from tundra ecosystems. Methods CH4 fluxes were measured in four sites across a variety of wet-sedge and tussock tundra ecosystems in Alaska using chambers and a Los Gatos CO2 and CH4 gas analyser. Results All sites were found to be sources of CH4, with northern sites (in Barrow) showing similar CH4 emission rates to the southernmost site (ca. 300 km south, Ivotuk). Gross primary productivity (GPP), water level and soil temperature were the most important environmental controls on CH4 emission. Greater vascular plant cover was linked with higher CH4 emission, but this increased emission with increased vascular plant cover was much higher (86 %) in the drier sites, than the wettest sites (30 %), suggesting that transport and/or substrate availability were crucial limiting factors for CH4 emission in these tundra ecosystems. Conclusions Overall, this study provides an increased understanding of the fine scale spatial controls on CH4 flux, in particular the key role that plant cover and GPP play in enhancing CH4 emissions from tundra soils