应对沙特阿拉伯的气候风险管理挑战

$40bn to become one of the costliestnatural catastrophes ever to strike theUnited States. In March, a powerful7.7 magnitude earthquake struck ChallengesOne of the major challenges inproviding adequate coverage isunderstanding and accurately the magnitude and cost of theseevents bring renewed focus to theway societies currently preparefor natural disasters and how thismight need to change in the future. Myanmar. It caused economic lossesequating to approximately 14% ofits GDP, according to the WorldBank. This not only made it one ofthe costliest natural catastropheevents outside of the US, it also dealta devastating blow to a developingeconomy. Finally, in October, all eyesturned to the Caribbean. Global dataanalytics and risk assessment firmVerisk said that as Hurricane Melissatore through the region with windspeeds up to 185 mph and initialpredicted insured losses of $2.2-4.0bn.These are just a few prominentexamples among the many billion-dollar natural catastrophes in 2025,highlighting the need to prepareeffectively for both present and future timescales—from annual to multi-decadal and longer.Adding to the complexityinduced by the climate system,there is also the human element—socioeconomic factors continuously population growth and economicdevelopment all increase the numberof assets prone to hazards, therebyraising the potential for high losses.The combination of natural andhuman factors introduces high levelsof uncertainty into risk management Saudi ArabiaIn the Arabian Peninsula, severalsignificant natural disasters—including Cyclone Gonu in Oman, These events may seem surprising,given the arid climate and society’slimited memory of previous events(depending on region). However,research and data help us understandhow these catastrophes precipitated,and we can begin to predict howclimate risks may evolve in a changingclimate. 3.Vulnerability:This quantifiesthe expected damage to each asset by ephemeral rivers, known locallyas wadis, which remain dry for muchof the year but can rapidly transforminto raging torrents during heavyrains. Settlements in these dry rivervalleys face significant flood riskwhen wadis activate.Saudi Arabia’s rapid economic 4.Financial:This module translatesphysical damage into insured lossesby applying insurance policy terms, is often generalised into four keycomponents:1.Hazard:This componentuses thelatest scientific methods to generate investments to develop catastrophemodels tailored specifically to SaudiArabia. The GCAT™ suite includes example of this trend. A simpleanalysis, combining flood risk maps,property footprints and populationdata, shows that while the proportionof floodable properties has remainedrelatively constant between 2005 and2025, the population living in thesezones has grown by 81%. Risingproperty values, population growthand expanding insurance portfolios These models empower insurers andreinsurers to quantify risk accurately,price coverage appropriately anddesign effective risk transfer solutions.On its own, historical data cannotreliably predict future catastropherisk, particularly in a world of rapidly a flood model might simulate 10,000years of plausible flood events toestimate risk.2.Exposure:This includes detailed,up-to-date information on the built environment, such as property an essential tool in our arsenalfor navigating this uncertainty,providing a method to integratescientific understanding and practicalknowledge into our decision-making.As Saudi Arabia’s risk landscapeevolves, catastrophe models will bemore crucial than ever to provideclarity amid complexity.The natural catastrophes of the Mr Lukas Müller is Chairman, Middle East &Africa, while Dr Marcus Buechel (MSci DPhil) isCatastrophe Flood Model Developer, both at GuyCarpenter.