Urban Rat Populations Surge Globally Due to Climate Change
A new study links rising temperatures to a significant increase in rat infestations across major cities, posing environmental and public health challenges.
- A study published in Science Advances found a correlation between rising urban temperatures and increased rat populations in 11 of 16 studied cities over the past decade.
- Cities like Washington DC and San Francisco saw rat populations grow by 390% and 300%, respectively, while Toronto reported a 162% increase and described the situation as a 'perfect storm of rats.'
- Warmer temperatures extend rats' breeding seasons and food availability, contributing to their population boom, as colder winters historically kept numbers in check.
- Rats pose risks to biodiversity and public health, being carriers of over 50 pathogens that can cause diseases in humans.
- Cities like Tokyo, which implemented advanced waste management practices, have seen stable or reduced rat populations, highlighting potential mitigation strategies.
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