Climate

Rising seas could cost Australia economic losses of $855 billion, study finds

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 01/10/2026, 08:54:24 UTC.

Briefings

A 2026 Mongabay study estimates Australia's coastal damage by 2100 could cost $855 billion under moderate emissions, potentially reaching $1.91 trillion under high-emissions scenarios. The analysis mapped 268,000 properties and 2 million hectares of land in moderate scenarios, and 720,000 properties and 3.7 million hectares in high-emissions scenarios. Tom Kompas, lead author, noted that most Australians live within 50 km of the coast, making the impact significant despite the vast coastline of 34,000 km.

Key points

• A 2026 Mongabay study estimates Australia's coastal damage by 2100 could cost $855 billion under moderate emissions, potentially reaching $1.91 trillion under high-emissions scenarios.
• The analysis mapped 268,000 properties and 2 million hectares of land in moderate scenarios, and 720,000 properties and 3.7 million hectares in high-emissions scenarios.

Context and limitations

Coverage is limited to Australia's coastline; data relies on existing projections and real estate sources; specific property values and damage calculations are estimates based on available data.

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