(Bloomberg) -- Climate change and large-scale forced migrationare the greatest risks facing the world according to a survey bythe World Economic Forum, the organizer of nextweek’s meeting in Davos.

The 2016 report, published Thursday, highlighted the mostsignificant threats expected over the next decade, based on asurvey of more than 750 experts. Not dealing with climate change is seen as the riskwith the greatest potential impact, ahead of weapons of massdestruction and water crises in second and third place. Migrationtops the list in terms of likelihood.

“Climate change is exacerbating more risks than ever before interms of water crises, food shortages, constrained economic growth,weaker societal cohesion and increased security risks,” CeciliaReyes, chief risk officer at Zurich InsuranceGroup AG, said in a statement. “Meanwhile, geopoliticalinstability is exposing businesses to canceled projects, revokedlicenses, interrupted production, damaged assets and restrictedmovement of funds across borders. These political conflicts are inturn making the challenge of climate change all the moreinsurmountable.”

‘Mitigation, ddaption’

The report, which is in its 11th year, shows a broader range ofrisks than ever before, the WEF said, with environmental,geopolitical, societal and economic threats all featuring in thetop five in terms of impact for the first time. There is alsoevidence of increased connections between risks as they feed offeach other, the report said.

“We know climate change is exacerbating other risks such asmigration and security, but these are by no means the onlyinterconnections that are rapidly evolving to impact societies,often in unpredictable ways,” said Margareta Drzeniek-Hanouz, theWEF’s head of global competitiveness and risks. “Mitigationmeasures against such risks are important, but adaptation isvital.”

The list of most likely risks, topped by “large-scaleinvoluntary migration,” continues with extreme weather events insecond place, failure to tackle climate change in third andinterstate conflict, which topped last year’s list, in fourth. Thehighest ranking for a technological risk wascyber-attack, which came in 11th place for both likelihood andimpact, though it was seen as the greatest risk to doing businessin North America.

“Events such as Europe’s refugee crisis and terrorist attackshave raised global political instability to its highest level sincethe Cold War,” said John Drzik, president of Global Risk andSpecialties at Marsh LLC.“The need for business leaders to consider the implications ofthese risks on their firm’s footprint, reputation and supply chainhas never been more pressing.”

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