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The study assesses four scenarios for reducing greenhouse gas emissions in Tallinn's bus fleet by 2020, finding that while biodiesel and bioethanol offer the highest emission reductions, they are significantly more expensive per ton of CO2e reduced than other transport or energy sector measures.

The document analyzes the intersection of international law and cyberwar, highlighting the tension between those who view cyber attacks as acts of war and those who see them as computer security problems. It critiques the 'cyber-doom' discourse used by 'cyberhawks' to justify increased military spending and the institutionalization of cyberwar units, such as the United States Cyber Command. The author argues that the Law of Armed Conflict (LOAC) only addresses a small portion of the challenge and suggests that policy makers should instead prioritize critical information infrastructure protection (CIIP) and a 'cyber peace' agenda to prevent the infringement of civil liberties and international instability.

The report investigates the feasibility of producing biomethane from organic waste and energy crops in Harju County, Estonia. It compares two primary scenarios for the Hinnu pig farm: using biogas for combined heat and power (CHP) or upgrading it to biomethane for transport fuel. The analysis concludes that while CHP may offer higher immediate business profitability due to feed-in tariffs, upgrading to biomethane provides greater overall social and environmental benefits, particularly when considering the EU Emissions Trading System.

The report assesses four fleet scenarios for the Tallinn Bus Company (TAK) up to 2020: continuing with conventional diesel, or transitioning to bioethanol (ED95), biodiesel (B100), or diesel-electric hybrids. While alternative fuels significantly reduce greenhouse gas emissions and external costs, they are more expensive to operate than conventional diesel. The study finds that the most cost-effective way to reduce local air pollution (PM and NOx) is simply replacing old buses with new Euro V and VI diesel models, as the emission gap between new diesel and alternative technologies has narrowed. Biodiesel offers the highest CO2 reduction potential, while hybrids provide the best fuel economy. The report recommends a diversified technology approach to mitigate risks associated with fuel prices and supply.

The report analyzes transport-related emissions in Tallinn from 2000 to 2009, noting a significant increase in CO2e emissions driven primarily by private car usage. It evaluates various fiscal and regulatory measures to mitigate these impacts, with a specific focus on municipal service vehicles. The study finds that implementing eco-driving training for municipal fleets could reduce CO2e emissions by 1,330 to 2,660 tons annually and save between 0.5 and 1 million euros in fuel costs. Despite strategic goals for sustainable transport, the report concludes that Tallinn's actual progress is hindered by a continued focus on car-centric infrastructure.

This report provides a comprehensive overview of Tallinn's fauna from 1980 to 2010, covering beetles, dragonflies, bees, butterflies, amphibians, reptiles, birds, and mammals. It highlights the city's high biodiversity—hosting over 60% of Estonia's total species for the studied groups—and identifies key biodiversity hotspots such as the Paljassaare reserve. The document emphasizes the need for coordinated, long-term monitoring using national methodologies to track the impact of urbanization and climate change on urban wildlife.

The report identifies significant distrust and dissatisfaction among stakeholders regarding Estonia's environmental impact assessment (EIA) and strategic environmental assessment (SEA) processes. Key issues include the perceived lack of independence of experts hired by developers, the incompetence of decision-makers (local governments), and a general decline in the protection of public interests. The study suggests that the system requires refinement, particularly in integrating SEA with planning processes and increasing the leading role of decision-makers to ensure objectivity and the protection of non-market values.

The report evaluates the state of biodiversity in Tallinn using the Singapore Index, where the city scored 62 out of 100 points. While Tallinn performs well in terms of native species richness and the proportion of natural areas, it lacks a dedicated biodiversity strategy and faces challenges such as habitat fragmentation and a lack of political priority for nature conservation. A survey of city officials highlights a perceived decline in urban forests and natural communities over the last decade. The document concludes with strategic and tactical recommendations, including the creation of a biodiversity action plan, improved integration of nature conservation into urban planning, and the establishment of a biodiversity council.

The document outlines strategies for urban biodiversity, focusing on nature-friendly gardening, landscaping, and construction. It provides detailed guidance on creating habitats for insects, birds, amphibians, and mammals, while addressing conflicts with 'problem' species and the impact of urban infrastructure on wildlife.

The report finds that Estonia's transport system is not developing sustainably, with car use and road freight growing in tandem with the economy, leading to high energy intensity and greenhouse gas emissions. While traffic fatalities have decreased significantly, urban air quality has suffered due to increased particulate matter from cars. The report compares Estonia's performance with EU averages and neighbors (Finland and Latvia), noting that Estonia has some of the least fuel-efficient new cars in Europe. Three scenarios for 2020 are analyzed: a 'BAAS' (baseline) scenario where trends continue, a 'TEHNO' scenario focusing on rapid vehicle efficiency gains, and an 'EFEKT' scenario focusing on mobility management and sustainable transport modes. The authors recommend a combination of both TEHNO and EFEKT measures, including CO2-based vehicle taxation, improved public transport and active mobility infrastructure, and integrated urban planning to decouple economic growth from transport demand.

The document argues that urban biodiversity is essential for human quality of life and ecosystem services, but is often undermined by development pressure and inadequate planning. It outlines the legal obligations of Estonian municipalities under international conventions and EU directives, such as Natura 2000. The guide provides a framework for local governments to integrate biodiversity into strategic plans, manage municipal lands and green networks, and engage the community. It details a five-step process for considering nature values in planning and presents case studies from cities like Edinburgh, Oslo, and Malmö to illustrate successful implementation of biodiversity strategies, green roofs, and sustainable drainage systems.

This report examines Environmental Impact Assessment (EIA) practices in Estonia. A survey of 118 local governments reveals that most environmental specialists handle waste and water management rather than EIA, with only 5% having extensive EIA experience. The report notes a significant increase in building permits between 2003 and 2005, though very few of these triggered an EIA process.

The Stockholm Environment Institute (SEI) is an international non-profit research organization that integrates scientific research with policy analysis to promote sustainability. Operating through eight global centers, SEI focuses on climate change, water, air, and land use, while incorporating perspectives on governance, economics, gender, and human health. Its regional centers provide specialized expertise in areas such as sustainable urbanization in Africa, climate adaptation in Asia, and environmental governance in the Baltic region and European Union.

The W-Fuel project investigated the feasibility of producing biomethane from locally sourced biodegradable waste, sludge, manure, and energy crops in northern Estonia. The study focused on two pilot sites: the Hinnu pig farm in Harju County and a proposed plant in Rakvere, Lääne-Viru County. Findings indicate that while CHP production may be more commercially profitable due to existing feed-in tariffs, upgrading biogas to biomethane for transport fuel is more socially and environmentally beneficial, particularly when accounting for the EU Emissions Trading Scheme (EU-ETS). The report also provides detailed biomass availability forecasts for 2020 and recommends specific waste prevention measures and governmental support schemes to facilitate the transition to gaseous renewable fuels.

This report, published by the Stockholm Environment Institute in November 2009, presents a calculation and simulation model for the social costs of land transport in Estonia. It estimates the total external costs for 2007, breaks them down by cost type and vehicle category, and analyzes the extent to which these costs are internalized through existing taxes and fees.

The study provides a detailed breakdown of waste composition in Estonia, finding that biodegradable waste (48%) and plastics (18.1%) are the largest components of mixed municipal waste. It notes a decrease in the share of glass, paper, and biodegradable waste compared to a 2007/2008 study, while highlighting that current landfilling of mixed waste would exceed legal limits for biodegradable content. Analysis of separately collected streams shows that packaging waste consists primarily of plastics (45%), and electronic waste is dominated by large household appliances.

The report analyzes 139 decisions from the Estonian Ministry of the Environment and the Environmental Board between 2010 and 2014. It finds that while supervisors generally confirm legal compliance, they often fail to document whether the information provided in EIA and SEA documents is sufficient or appropriate for decision-making. The analysis reveals a lack of consistency in the structure of approval letters and a tendency to overlook procedural errors if they are deemed not to affect the final outcome. The author recommends standardizing the structure of approval decisions and introducing specific control questions to ensure a more rigorous assessment of document quality and public participation.

The CASCADE project is a 24-month initiative (2019–2020) funded by DG ECHO with a budget of 867,028 euros. It focuses on increasing risk management capability in the Baltic Sea Region through the development of an online tool for integrated climate change and disaster risk reduction, a risk assessment methodology for urban contexts, and training for city officials. The project also facilitates policy dialogues across governance levels to improve coherence on climate risk assessments and promote the UN Sendai Framework for Disaster Risk Reduction.

The report provides a comprehensive analysis of climate change projections for Estonia through 2100 and outlines a strategic adaptation plan to 2030. It identifies key vulnerabilities across eight priority sectors—including health, land use, nature, bioeconomy, economy, society, infrastructure, and energy—and proposes specific goals, metrics, and measures to mitigate risks such as sea-level rise, extreme weather, and ecosystem shifts. The plan estimates a total implementation cost of 43.7 million euros between 2017 and 2030.

The document examines Estonia's agro-environmental targets set within the Rural Development Plan 2007-2013, the Water Act, and the Nitrate Vulnerable Area programme. While chemical loads have decreased since 1990, challenges remain regarding fertiliser efficiency, manure management, and institutional coordination. The brief recommends integrating policies on the marine environment and water courses, establishing a permanent commission for water policy between the Ministry of Agriculture and the Ministry of Environment, and improving advisory services for small and medium producers.