The UN Office for Disaster Risk Reduction ( UNISDR ) has confirmed that weather and climate - related events now dominate disaster trends related to natural hazards . The UN Secretary - General 's special representative , mark foster , said that nearly 100 m people were affected by disasters in 2015 . Climate , accompanied by a strong El Nino , was a factor in over 90 % of these events . The UN analysis showed that the five countries hit by the highest number of disasters in 2015 were China , with 26 disasters ; USA , with 22 ; India , with 19 ; Philippines , with 15 and Indonesia , with 11 . UNISDR showed that following droughts , floods had the second - greatest impact in 2015 .
The UN Office for Disaster Risk Reduction (UNISDR) has confirmed that weather and climate-related events now dominate disaster trends linked to natural hazards. The UN Secretary-General's special representative, Robert Glasser, said that nearly 100m people were affected by disasters in 2015. Climate, aided by a strong El Nino, was a factor in over 90% of these events. The UN analysis found that the five countries hit by the highest number of disasters in 2015 were China, with 26 disasters; USA, with 22; India, with 19; Philippines, with 15 and Indonesia, with 11. UNISDR noted that following droughts, floods had the second-greatest impact in 2015.