New Delhi, Jan. 30 -- Human-caused climate change worsened recent torrential rains and floods that devastated parts of southern Africa, killing more than 100 people and displacing hundreds of thousands, researchers said Thursday.

A study by the World Weather Attribution, which analyzed the recent heavy rainfalls that caused severe flooding in parts of South Africa, Mozambique and Zimbabwe, showed that the region experienced a year's worth of rain in a period of 10 days.

It resulted in widespread damage to housing and infrastructure estimated to run to millions of dollars, while humanitarian agencies say there is an escalating crisis for people displaced and facing hunger, disease outbreaks and a lack of health services because of the de...