A worldwide review of global rainfall data led by the University of Adelaide has found that the intensity of the most extreme rainfall events is increasing across the globe as temperatures rise.
In the most comprehensive review of changes to extreme rainfall ever undertaken, researchers evaluated the association between extreme rainfall and atmospheric temperatures at more than 8000 weather gauging stations around the world.
In 2011, poorer developing countries have been hit much harder in average than other countries, according to the new edition of the Germanwatch Global Climate Risk Index (CRI) 2013, which was released in Doha on 27 November. Many of the worst natural disasters of 2011 were also the most severe the affected countries had ever experienced. Brazil, Cambodia, El Salvador, Laos and Thailand appear in the CRI’s 10 most-affected countries; all recorded their severest natural hazards-related catastrophes in 2011. For the period 1992 to 2011, Honduras, Myanmar and Nicaragua rank highest.