Why is extreme weather killing fewer people?

by | May 22, 2023 | Science

Volunteers in Bangladesh warn locals that Cyclone Mocha is on its way. Such measures have helped bring down death tolls from extreme weather eventsExtreme weather has caused trillions of dollars of economic damage in the last half century, but the human death toll has fallen dramatically.The economic cost of floods, storms and wildfires has accelerated since 1970, according to a World Meteorological Organisation (WMO) report.But better early warning systems and disaster management in developing countries mean fewer people are dying.They caused 22,608 deaths between 2019 and 2021, fewer than in earlier years.Two million people have died in extreme weather-related events since 1970, according to the WMO.The cost of damage from these events has increased by a factor of eight since 1970s and now totals $4.3 trillion dollars (£3.5 trillion), the new data from the UN’s climate and weather body shows.Lower death tolls have nothing to do with such events becoming less frequent or severe. The number of weather-related disasters has increased five-fold over the same period, according to the WMO.The developing countries that have seen improvements in measures to protect human life are home to the populations most vulnerable to such disasters, says the WMO.It wants high quality early warnings of impending disasters to reach everyone on the planet by the end of 2027 and it is hoping to accelerate the establishment of these systems during the World Meteorological Conference which begins today in Geneva.The WMO reports 11,778 disasters between 1970 and 2021 in its updated Atlas of Mortality and Economic Losses from Weather, Climate and Water Extremes.Bangladesh’s Shahpori island was one of the areas affected by Cyclone Mocha earlier this monthNine out of ten of the two million deaths those disasters caused were in developing countries.”The most vulnerable communities unfortunately bear the brunt of weather, climate and water-related hazards,” said WMO Secretary-General Prof. Petteri Taalas.He used the example of Cyclone Mocha, the tropical storm which hit parts of Myanmar and Bangladesh last week. It caused widespread destruction, impacting some of the poorest communities.Story continuesAt least 800,000 people are reported to be in need of emergency food aid and other assistance, but the number of people killed is currently estimated to have been less than 200.In the past such a storm would have caus …

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