Rio Grande do Sul [Brazil], May 4 (ANI): In what authorities are describing as the worst disaster in its history, Brazil’s southern state of Rio Grande do Sul is reeling from the devastating effects of heavy rains and mudslides. The death toll has surged to 37, with 74 individuals reported missing, according to the state’s civil defence agency, Al Jazeera reported. Rescue operations are underway as emergency responders race against time to locate survivors trapped amidst the debris of collapsed homes, bridges, and roads. Governor Eduardo Leite declared a state of emergency as the region grappl…