The proposed Sustainable Highlands Highway Infrastructure Program (SHHIP) is envisaged as a ten- year, multi-partner, multi-tranche financing facility aiming to restore and upgrade the Highlands Highway in Papua New Guinea (PNG). The executing agency is the PNG Department of Works (DoW). The initial climate screening of SHHIP using AWARE determined the Investment Program to be at medium risk to climate and climate change. As a result, ADB procedures require that a climate risk and vulnerability assessment (CRVA) be undertaken during the design stage.
This chapter provides a brief description of Papua New Guinea, its past and present climate as well as projections for the future. The climate observation network and the availability of atmospheric and oceanic data records are outlined. The annual mean climate, seasonal cycles and the influences of large-scale climate features such as the West Pacific Monsoon and patterns of climate variability (e.g. the El Niño‑Southern Oscillation) are analysed and discussed.
Papua New Guinea (PNG) is a country emblematic of the challenges facing developing rainforest nations in the Global South. Despite its rich natural resources (recent surveys indicate that between 50% and 70% of the