BEIRUT (Enmaeya News) — A Science Advances study highlights how climate change is fueling a global surge in urban rat infestations. Rising temperatures allow rats to survive harsher conditions and increase reproduction, accelerating their population growth. Urban settings are expected to warm by 1.9 to 4.4 degrees by 2100, further exacerbating the issue. Factors such as reduced vegetation, dense living conditions, and limited pest control resources are enabling rats to thrive, particularly in North American cities. The study analyzed data from 16 global cities and found that most are seeing increasing rat populations. Some cities, like Tokyo and New Orleans, are managing the problem better due to strong rodent control programs and proactive citizen involvement. In contrast, Washington, D.C.'s rat population is growing 1.5 times faster than in New York City, which has implemented more stringent rodent control measures.

The health risks of rat infestations are significant, as they carry over 50 zoonotic pathogens and can increase the spread of diseases. Beyond physical health, exposure to rats has been linked to a fivefold increase in depression risk, particularly among lower-income and non-white communities. Experts stress that controlling rat populations requires a combined effort from both city governments and residents. Measures such as securing food waste, using enclosed garbage containers, and reporting sightings through local hotlines like 311 are key steps in mitigation. New York City, for example, has launched initiatives like the Rat Pack program to educate residents on keeping their neighborhoods vermin-free. However, experts warn that as temperatures rise, traditional pest control methods like poisons and traps will become less effective, and cities must adopt integrated pest management strategies focused on eliminating conditions that support rat populations.