Cold snap chills New York City’s rats, and heats up the fight against them

The United States’ most populous city has been spared the Upper Midwest’s extreme wind chills, not to mention the shock of record-breaking snow in the deep South. (AP)
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Updated 23 January 2025
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Cold snap chills New York City’s rats, and heats up the fight against them

  • The United States’ most populous city has been spared the Upper Midwest’s extreme wind chills, not to mention the shock of record-breaking snow in the deep South

NEW YORK: This week’s frigid weather has many New York City residents shivering, scurrying into cozy spots and feeling sapped. Including the rats.
The United States’ most populous city has been spared the Upper Midwest’s extreme wind chills, not to mention the shock of record-breaking snow in the deep South, in this week’s Arctic blast. But temperatures peaked Monday around 26 degrees Fahrenheit (-3 Celsius) and roughly 20 degrees (-7 Celsius) Tuesday and Wednesday, well below average.
Such cold has, yes, a chilling effect on the Big Apple’s notorious rodents. But it boosts efforts to get rid of them, says city “rat czar” Kathleen Corradi.
“It’s stressing out rats. It’s putting them in their burrows,” she says. “So we kind of get to double down now while the rats are ‘feeling the heat’ from this cold snap.”
New York City’s wild rat species — Rattus norvegicus, also called the Norway rat or brown rat — doesn’t hibernate in winter but does become less active when the weather is freezing for prolonged periods. At the same time, the rodent’s food source tends to shrivel because people are out less and therefore discarding few food wrappers and other rat snacks on the streets, Corradi said.
All that makes for stressed rats and suppresses breeding, which “is really their superpower,” Corradi said. Norway rats can reproduce many times a year, essentially any time conditions are suitable, though they tend to be most prolific from spring through fall.
Jason Munshi-South, a Drexel University ecology professor who has researched New York City’s rats, said those that are already holed up in subway tunnels, sewers, crawlspaces or other nooks can weather the cold fairly well.
Rats that haven’t secured a hideaway might venture to unusual places, such as car engine blocks. Or a tempting basement? Perhaps, if building owners haven’t diligently blocked them out.
But Munshi-South said some of the animals likely will freeze to death, especially if they’re already sick, malnourished or otherwise weakened.
“Harsh winters like we are having so far will keep the rat population at a lower level if we have sustained cold, freezing periods,” he said in an email.
All of that, Corradi said, allows the city’s rat-fighters to make headway ahead of the warmer months.
There’s no official count of New York City’s rats, but no one disputes that they have long been legion. Successive city administrations have tried various approaches to eliminating or at least reducing them.
Current Mayor Eric Adams, a Democrat who has battled the critters at his own Brooklyn home, created Corradi’s position — officially, the director of rodent mitigation — about two years ago. Adams’ administration also has focused on requiring trash “containerization,” otherwise known as putting household and business garbage into enclosed bins instead of piling refuse-filled plastic bags on the curb.


Filipinos master disaster readiness, one roll of the dice at a time

Updated 29 December 2025
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Filipinos master disaster readiness, one roll of the dice at a time

  • In a library in the Philippines, a dice rattles on the surface of a board before coming to a stop, putting one of its players straight into the path of a powerful typhoon

MANILA: In a library in the Philippines, a dice rattles on the surface of a board before coming to a stop, putting one of its players straight into the path of a powerful typhoon.
The teenagers huddled around the table leap into action, shouting instructions and acting out the correct strategies for just one of the potential catastrophes laid out in the board game called Master of Disaster.
With fewer than half of Filipinos estimated to have undertaken disaster drills or to own a first-aid kit, the game aims to boost lagging preparedness in a country ranked the most disaster-prone on earth for four years running.
“(It) features disasters we’ve been experiencing in real life for the past few months and years,” 17-year-old Ansherina Agasen told AFP, noting that flooding routinely upends life in her hometown of Valenzuela, north of Manila.
Sitting in the arc of intense seismic activity called the “Pacific Ring of Fire,” the Philippines endures daily earthquakes and is hit by an average of 20 typhoons each year.
In November, back-to-back typhoons drove flooding that killed nearly 300 people in the archipelago nation, while a 6.9-magnitude quake in late September toppled buildings and killed 79 people around the city of Cebu.
“We realized that a lot of loss of lives and destruction of property could have been avoided if people knew about basic concepts related to disaster preparedness,” Francis Macatulad, one of the game’s developers, told AFP of its inception.
The Asia Society for Social Improvement and Sustainable Transformation (ASSIST), where Macatulad heads business development, first dreamt up the game in 2013, after Super Typhoon Haiyan ravaged the central Philippines and left thousands dead.
Launched six years later, Master of Disaster has been updated this year to address more events exacerbated by human-driven climate change, such as landslides, drought and heatwaves.
More than 10,000 editions of the game, aimed at players as young as nine years old, have been distributed across the archipelago nation.
“The youth are very essential in creating this disaster resiliency mindset,” Macatulad said.
‘Keeps on getting worse’ 
While the Philippines has introduced disaster readiness training into its K-12 curriculum, Master of Disaster is providing a jolt of innovation, Bianca Canlas of the Department of Science and Technology (DOST) told AFP.
“It’s important that it’s tactile, something that can be touched and can be seen by the eyes of the youth so they can have engagement with each other,” she said of the game.
Players roll a dice to move their pawns across the board, with each landing spot corresponding to cards containing questions or instructions to act out disaster-specific responses.
When a player is unable to fulfil a task, another can “save” them and receive a “hero token” — tallied at the end to determine a winner.
At least 27,500 deaths and economic losses of $35 billion have been attributed to extreme weather events in the past two decades, according to the 2026 Climate Risk Index.
“It just keeps on getting worse,” Canlas said, noting the lives lost in recent months.
The government is now determining if it will throw its weight behind the distribution of the game, with the sessions in Valenzuela City serving as a pilot to assess whether players find it engaging and informative.
While conceding the evidence was so far anecdotal, ASSIST’s Macatulad said he believed the game was bringing a “significant” improvement in its players’ disaster preparedness knowledge.
“Disaster is not picky. It affects from north to south. So we would like to expand this further,” Macatulad said, adding that poor communities “most vulnerable to the effects of climate change” were the priority.
“Disasters can happen to anyone,” Agasen, the teen, told AFP as the game broke up.
“As a young person, I can share the knowledge I’ve gained... with my classmates at school, with people at home, and those I’ll meet in the future.”