Pacific Dataviz Challenge 2026
Pacific Islands at the
Forefront
of the Climate Crisis
Climate change in the Pacific is not merely about rising seas. Escalating temperatures, extreme rainfall patterns, and accelerating coastline erosion are working in concert, threatening small island communities and the lives that depend on them.
Click on any marker to view climate data for that country. Use scroll wheel to zoom, drag to pan.
Rate of Sea Level Rise
Satellite measurements and tidal gauge stations consistently show escalating sea level anomalies. For regions with extremely low topography such as Tuvalu and Kiribati, every millimeter of rise significantly amplifies the daily tidal flooding threat.
Cumulative Sea Level Anomaly
Mean sea level deviation (metres) relative to the 1993–2012 baseline period
Sea Surface Temperature & Sea Level Anomaly
Global warming is driving an exponential rise in Pacific Ocean surface temperatures. The direct consequences are thermal expansion of seawater and accelerated melting of polar glaciers, causing sea levels to rise to historically unprecedented levels.
Temperature & Sea Level Anomaly Correlation
Instability of Rainfall Cycles
Warmer ocean temperatures accelerate evaporation across the Pacific atmosphere. The result is an increasingly volatile hydrological cycle: daily rainfall exceeding normal thresholds triggers flash flooding, while dry periods grow progressively longer and more severe.
Annual Rainfall Anomaly
Coastal Erosion & Shoreline Change
The combination of elevated sea levels and persistent wave action is intensifying coastal erosion. Aerial and satellite imagery reveals that once-extensive sandy beach areas have been submerged, forcing a measurable contraction of island landmass over recent decades.
Shoreline Reconstruction Model
Vulnerability & Social Consequences
The impacts of climate change are not distributed equally. The Climate Risk Index integrates sea level rise rates, coastline erosion levels, coastal population density, and life-sustaining infrastructure to produce a composite vulnerability score.