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Much research effort has been invested in understanding ecological impacts of invasive alien species (IAS) across ecosystems and taxonomic groups, but empirical studies about economic effects lack synthesis. Using a comprehensive global database, we determine patterns and trends in economic costs of aquatic IAS by examining: (i) the distribution of these costs across taxa, geographic regions, and cost types; (ii) the temporal dynamics of global costs; and (iii) knowledge gaps, especially compared to terrestrial IAS. Based on the costs recorded from the existing literature, the global cost of aquatic IAS conservatively summed to US$345 billion, with the majority attributed to invertebrates (62%), followed by vertebrates (28%), then plants (6%). The largest costs were reported in North America (48%) and Asia (13%) and were principally a result of resource damages (74%); only 6% of recorded costs were from management. The magnitude and number of reported costs were highest in the United States of America and for semi-aquatic taxa. Many countries and known aquatic alien species had no reported costs, especially in Africa and Asia. Accordingly, a network analysis revealed limited connectivity among countries, indicating disparate cost reporting. Aquatic IAS costs have increased in recent decades by several orders of magnitude, reaching at least US$23 billion in 2020. Costs are likely considerably underrepresented compared to terrestrial IAS; only 5% of reported costs were from aquatic species, despite 26% of known invaders being aquatic. Additionally, only 1% of aquatic invasion costs were from marine species. Costs of aquatic IAS are thus substantial, but likely underreported. Costs have increased over time and are expected to continue rising with future invasions. We urge increased and improved cost reporting by managers, practitioners and researchers to reduce knowledge gaps. Few costs are proactive investments; increased management spending is urgently needed to prevent and limit current and future aquatic IAS damages.

The earth works like a greenhouse. Carbon dioxide (CO2), methane, and other naturally occurring greenhouse gases (GHGs), as well as human-made industrial gases trap heat from escaping into space. This keeps the earth’s temperature within a life-sustaining range. Without the greenhouse effect, Earth would be much colder—an average temperature of –19° Celsius (C). Human reliance on fossil fuels for energy has increased the amount of CO2 in the atmosphere. Biogenic emissions of GHG from land use have magnified the greenhouse effect. Deforestation and poor land use, which have reduced the absorptive capacity of plants, forests, and soils for CO2, have made things worse.

Farmers cultivate steep hillside plantations of taro and bananas. Fishing communities pull tuna and marlin from the blue depths of the Pacific Ocean. Households tend mile after mile of neatly trimmed roadside gardens. Samoa’s beautiful natural environment also offers a striking setting for a rich and complex culture. Communities headed by traditional leaders, the matai, meet regularly in fale, the open-sided houses, to reach communal decisions. And on Sundays the roads are flooded with families dressed in dazzling white clothes flocking to hundreds of churches.

On the 14-15 October 2010, 14 Pacific Island countries met to discuss the Pilot Program for Climate Resilience. This meeting was attended by representatives from Australia, Cook Islands, Fiji Islands, Kiribati, Federated States of Micronesia, Nauru, Palau, Papua New Guinea, Republic of the Marshall Islands, Samoa, Solomon Islands, Timor-Leste, Tonga, Tuvalu, and Vanuatu. At the meeting there were also representatives from international, regional and national organizations, development partners and non-government organisations. The meeting was jointly hosted by the Asian Development Bank and the World Bank.

Th e Vanuatu Economic Report 2009 outlines the state of economy and social development in the country and presents a road map for addressing key development challenges. It identifies the principal binding development constraints and opportunities in public sector performance, private sector and social development, and governance.

This Climate Change Implementation Plan (CCIP) for the Pacific Regional Department (PARD) of the Asian Development Bank (ADB) describes the areas of focus for PARD's operations and identifies key gaps between country and ADB actions, as well as opportunities for scaling up ADB's assistance related to mitigation, adaptation and associated cross-cutting needs. This gap analysis points to recommended interventions in regional and country programs for additional technical assistance (TA) and financial assistance, including access to new climate funds and adoption of new financing mechanisms. These include multi-donor Climate Investment Funds (Clean Technology Fund and Strategic Climate Fund), ADB's Future Carbon Fund, and possibly a new Sustainable Fuel Credits mechanism to promote reduced petroleum consumption. The CCIP will evolve through periodic updates in order to effectively guide ongoing and future programs and TA and project design. Going forward, specific climate change interventions will continue to be incorporated into the Country Partnership Strategy (CPS) and Country Operations Business Plan (COBP) for each Pacific Developing Member Country (PDMC) and into the Regional Operations Business Plan (ROBP) for the Pacific region as a whole. TA and investment projects will be designed, taking into consideration regional and country variations in governance, institutional capacity, and geographic and local environmental conditions.

The Pacific Strategy for the New Millennium1 of the Asian Development Bank (ADB) focuses on the core objectives of (i) continuing support for economic growth, good governance, and public sector reform; (ii) promoting private sector development as the engine for growth; and (iii) supporting sustainable environmental management and equitable social development. A new regional strategy is being prepared for ADB operations in the Pacific, which will focus on the priority needs of the poor, as defined by an extensive program of qualitative and quantitative poverty assessment, based on listening to the voices of those in hardship or poverty. The new strategy will focus on improving access to basic services and creating employment opportunities. As the Government is beginning preparation of its Strategic Development Plan 8 (SDP8) for 2005-2007, it is timely to review ADB’s strategy and program for Tonga.

The purpose of the Asian Development Bank (ADB) Pacific Strategy 2005-2009 is to provide a framework for ADB operations in its 14 Pacific developing member countries (PDMCs)1 and for ADB support to regional cooperation in the Pacific. This third ADB Pacific Strategy will allow ADB's Pacific Department (PARD) to better focus its activities, deepen its experience and expertise in key result areas (KRAs), and align resources to strategy objectives, in order to maximize the impact of ADB support to the development efforts of the PDMCs.