From an average of 120 disasters a year in the early 1980s, there are now as many as 500, the report said, attributing the rise to unpredictable weather conditions cause by global warming.
"This year we have seen floods in South Asia, across the breadth of Africa and Mexico that have affected more than 250 million people," said Oxfam’s director Barbara Stocking.
"It follows a pattern of more frequent, more erratic, more unpredictable and more extreme weather events that are affecting more people."
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