Over $4 trillion of economic output is at risk in the world's largest cities due to a host of dangers ranging from earthquakes, pandemics, nuclear disasters, terrorism, tsunamis and cyberattacks, according to a new study from Lloyd's of London.
The study, called the "The Lloyd's City Risk Index", analysed how gross domestic product (GDP) in 301 major cities around the world would be affected by 18 man-made and natural disasters over a ten-year period from 2015 to 2025.
It found that a massive $4.6 trillion of projected GDP was at risk from man-made and natural disasters in cities everywhere.
"The change risk landscape means that these risks...are becoming much more intangible. We've got technology making everything more interconnected, so you've got things like cyber attacks, market crashes, oil price crashes. This is the new emerging type of risk that all businesses and governments are being faced with today," Inga Beale, CEO of Lloyd's of London, told CNBC Thursday.