Pakistan has been reeling from flooding triggered by torrential rains, with nearly 400 people killed since August 14.On Wednesday, Karachi was inundated following a heavy downpour, paralysing the southern port city of 20 million people less than a week after deadly flash floods swept away villages in the northwestern province of Khyber Pakhtunkhwa.More than 700 people have been killed in the flooding and landslides across the South Asian nation since June, with forecasters warning of further downpours until Saturday.So why have floods in Pakistan been so intense, and what is the solution to the South Asian country’s flooding problem?Where did it flood in Pakistan?The Buner district in the Khyber Pakhtunkhwa province has been the worst hit, with more than 200 people killed and extensive damage to homes and public infrastructure across the northwestern mountainous province since August 14.The Himalayan region of Gilgit-Baltistan, as well as Pakistan-administered Kashmir, was also affected.Karachi, the capital of the southern Sindh province, was hit by floods after rainfall on Tuesday. Videos circulating on social media showed cars and motorbikes submerged in water.How many people have died in the floods?On Thursday, nine people died and 15 were injured across the country, according to the National Disaster Management Authority (NDMA). Seven of these deaths were in Khyber Pakhtunkhwa, while two were in Sindh.On Wednesday, 41 people died and 11 people were injured across the country. At least 19 of these deaths were in Khyber Pakhtunkhwa, 11 deaths were in Sindh, and 11 deaths were reported in Gilgit-Baltistan. Advertisement Some 759 people have …