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Human health risks, stronger cyclones, coral reef death, and coastal flooding are among the major challenges detailed in a new report on climate change in American Sāmoa. Threatened resources include high-value coastal infrastructure and the millions of dollars that ocean ecosystems add to American Sāmoa's economy annually, according to the report by the Pacific Islands Regional Climate Assessment (PIRCA), a consortium of several government, NGO, and research entities. Climate Change in American Sāmoa: Indicators and Considerations for Key Sectors is one in a series of new PIRCA reports aimed at assessing the state of knowledge about climate change indicators, impacts, and adaptive capacity of the US-Affiliated Pacific Islands and the Hawaiian archipelago. Authors from the University of Hawai‘i and the East-West Center—along with 25 technical contributors from local governments, NGOs, researchers, and community groups—collaboratively developed the American Sāmoa PIRCA report. Climate change is expected to disrupt many aspects of life in American Sāmoa. Those who are already vulnerable—including children, the elderly, low-income families, and individuals with disabilities—are at greater risk from extreme weather and climate events. Climate Change in American Sāmoa: Indicators and Considerations for Key Sectors provides guidance for decision-makers seeking to better understand the implications of climate variability and change for American Sāmoa and its communities. This assessment also identifies the additional information and research needed to support responses that enhance resilience and help American Sāmoa to withstand the changes to come., A Samoan language summary is available for download at https://www.eastwestcenter.org/PIRCA-AmericanSamoa. To request a printed copy of the report or summary, please contact info@PacificRISA.org.

The ongoing emission of greenhouse gases (GHGs) is triggering changes in many climate hazards that can impact humanity. We found traceable evidence for 467 pathways by which human health, water, food, economy, infrastructure and security have been recently impacted by climate hazards such as warming, heatwaves, precipitation, drought, floods, fires, storms, sea-level rise and changes in natural land cover and ocean chemistry. By 2100, the world’s population will be exposed concurrently to the equivalent of the largest magnitude in one of these hazards if emmisions are aggressively reduced, or three if they are not, with some tropical coastal areas facing up to six simultaneous hazards. These findings highlight the fact that GHG emissions pose a broad threat to humanity by intensifying multiple hazards to which humanity is vulnerable.

In 2015, States concluded the landmark Paris Agreement, which committed to a long-term goal of “holding the increase in the global average temperature to well below 2°C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5°C above pre-industrial levels”. The Paris Agreement galvanises all signatory nations in a common cause — combating climate change and adapting to and investigating its effects, and with enhanced support to assist developing countries to do so. As such, it charts a new course in the global climate effort. The goals of the Paris Agreement will only be achieved through massive investment in pursuit of a common objective. According to the International Finance Corporation, an estimated US$90 trillion investment is required to implement the Paris Agreement. The current regime of international investment agreements (IIAs) provides an invaluable opportunity to promote the investment required to achieve the Paris Agreement objectives, including mitigation, adaptation and transition from fossil fuels. However, users must take care to ensure that investment is, in fact, protected and encouraged, and to maintain critical progress in promoting international climate change policy. ICSID is one of the five arms of the World Bank Group, which recognises that “[c]limate change is a threat to the core mission of the World Bank Group”. The ICSID Convention is also designed to promote international private investment. As such, ICSID sits at an important nexus in this discussion. This article: (i) provides an overview of several influential arbitration decisions relating to international environmental disputes, and the way in which the existing climate change regime uses arbitration as a dispute resolution mechanism; (ii) examines the evolution of investment treaties, prior decisions, especially in the field of renewable energy, and the tools available within IIAs for tribunals to promote the Paris Agreement objectives; (iii) discusses what arbitral institutions have done to date, in terms of tools, procedures, rules and other mechanisms, to promote climate change expertise and facilitate the resolution of disputes in a way that is consistent with climate change concerns; and (iv) considers ICSID's position as an arm of the World Bank, particularly in light of the WBG Climate Change Action Plan commitment to scaling up climate action and aligning internal processes with intentionally agreed climate change goals.