Floods driven by climate change are raising the danger of long-banned toxic chemicals resurfacing in rivers, soil, and food chains, according to a new UN Environment Programme (UNEP) report.
The Frontiers 2025 report highlights floods as a growing threat that can stir up harmful substances buried in sediments and infrastructure over decades or centuries. These toxins risk spreading across agricultural lands, urban areas, and freshwater sources, endangering both human health and ecosystems.
“Floodwaters can remobilize chemicals thought safely buried,” the report said, warning that increasing extreme weather linked to global warming is amplifying this risk.
Experts note many of these persistent chemicals, banned under international agreements like the 2006 Stockholm Convention, remain trapped in riverbeds, landfills, and contaminated sites. Flooding events can release them back into the environment, allowing them to bioaccumulate in wildlife and humans.
Low-lying and coastal populations are particularly vulnerable, as more people worldwide settle in flood-prone areas. UNEP officials urge governments to strengthen water management, environmental monitoring, and emergency planning to address these risks.
Industrial toxins such as persistent bioaccumulative and toxic substances (PBTs), per- and polyfluoroalkyl substances (PFAS), and asbestos are among the dangerous chemicals that floods may release. Despite bans and restrictions, these compounds continue to appear in water systems globally, posing long-term health threats.
UNEP experts also highlight the urgent need to improve early warning systems and monitoring capabilities, especially in vulnerable regions, to better manage and mitigate the impact of chemical pollution linked to climate-driven flooding.
“Preventing contamination is far more cost-effective than dealing with its aftermath,” the report stresses, calling for greater policy attention to these emerging environmental challenges.
Demonstrators carrying Iranian flags and placards supporting the hijab gathered outside the Azerbaijani Embassy...
A Chinese-made AI chip has matched Nvidia’s H200 in tests conducted by its developer, marking a potential breakthrough in China’s effor...
China’s GJ-21 carrier-based stealth reconnaissance and strike drone has completed its first take-off and landing on board the Sichuan, the co...
The Middle East conflict remains tense as diplomatic efforts continue alongside renewed Houthi attacks. Iran says it remains open to mediation, while the Saudi-led coalition says it intercepted a ballistic missile fired towards the kingdom.
Rescuers searched the wreckage of two high-speed trains in central Spain on Thursday as the death toll rose to a provisional 74, making it the country's second fatal high-speed rail disaster this year.
Evacuations and the provision of humanitarian aid in the Russian-occupied southern Ukrainian town of Oleshky have begun, a senior Ukrainian official said on Friday. In a statement on Telegram, David Arakhamia said a six-day ceasefire was holding, and that more details would follow.
Qatari mediators returned to Tehran on Friday as part of efforts to reach a deal between the U.S. and Iran, according to an official briefed on the talks.
UN human rights experts comprising a group including Special Rapporteurs and independent experts who are part of the UN Human Rights Council, have criticised French authorities over their handling of nationwide student protests.
China’s GJ-21 carrier-based stealth reconnaissance and strike drone has completed its first take-off and landing on board the Sichuan, the country’s first Type 076 amphibious assault ship, state media reported on 30 October.
A powerful El Niño is driving extreme weather worldwide, leaving millions facing drought, wildfires and destructive storms as governments scramble to respond to the growing crisis.
A high-speed train involved in Wednesday's deadly collision in Spain was travelling at between 160 and 200 kilometres per hour, far above the 40 km/h safety limit, according to a preliminary investigation published on Friday.
Evacuations and the provision of humanitarian aid in the Russian-occupied southern Ukrainian town of Oleshky have begun, a senior Ukrainian official said on Friday. In a statement on Telegram, David Arakhamia said a six-day ceasefire was holding, and that more details would follow.
Hackers have pulled off a staggering $6.3 billion cryptocurrency heist targeting Binance, shaking confidence in one of the world's biggest digital asset exchanges and sending crypto prices tumbling. U.S. analysts suspect North Korea was behind the attack.
You can download the AnewZ application from Play Store and the App Store.
What is your opinion on this topic?
Leave the first comment