Human-caused climate change has intensified seasonal rains across the Niger and Lake Chad basins this year, leading to catastrophic flooding, according to a study released by international scientists on Wednesday.
Researchers from the World Weather Attribution (WWA) initiative reported that floods in Chad, Cameroon, Niger, Nigeria, and Sudan have resulted in over 2,000 deaths and displaced millions. The heavy rains also overwhelmed dams in Nigeria and Sudan.
The study found that rainfall this year was 5 to 20 percent more intense in the affected regions, which encompass four of the five countries. Scientists indicated that such extreme rainfall patterns are becoming the new normal due to climate change and are likely to continue annually if global warming persists.
Factors such as poverty, rapid urbanization, and poor water management have worsened the impact of these floods. Ongoing conflict has further complicated the situation, displacing millions in Chad, Nigeria, and Sudan, who now live in makeshift shelters with heightened vulnerability to flooding.
The WWA noted that the severe flooding from June to September exacerbated an already critical humanitarian crisis in Sudan, overwhelming the response capabilities of aid organizations and governments.
The scientists emphasized the need for the region to prepare for even heavier rainfall in the future and to urgently improve water management systems. They called for increased investment in early warning systems and dam upgrades, as well as meaningful financial contributions from wealthier nations.
Additionally, they urged delegates attending the upcoming COP29 climate summit in Azerbaijan to act decisively in reducing reliance on fossil fuels, which are responsible for over 75 percent of greenhouse gas emissions and nearly 90 percent of carbon dioxide emissions.