Widespread flooding in northeastern India that affected more than 500,000 people and claimed at least 99 lives between June and August 2026 was primarily driven by human factors like rapid urbanization, deforestation, and destruction of wetlands, new research says. It also points to structural failures rather than climate change. The findings were published by World Weather Attribution (WWA), a global network of researchers who analyze the influence of climate change in extreme weather events. Floods hit India’s Assam state nearly every monsoon as the Brahmaputra River and its tributaries overflow, often submerging the surrounding landscapes. “We decided to focus on the upper Assam, both because of the significant socio-economic and environmental damage reported in the region, and the sheer collective damage of catastrophic floods in the region year on year,” research co-author Arpita Mondal, from the Indian Institute of Technology Bombay (IIT Bombay), said at a press briefing. The scientists analyzed historical weather records and climate models to determine the likelihood of the extreme rainfall that occurred over a three-day period (June 26-29), as well over a 30-day period (June 20 to July 19). They found the heavy rainfall observed in 2026 wasn’t exceptional, recurring every one to two years. The team also found no clear link to human-induced rise in global temperatures. “When we combine the observational results with the climate models, we again found no detectable climate change signal in either type of events,” co-author Mariam Zachariah, from Imperial College London, said at the briefing. Instead, the study…This article was originally published on Mongabay