Question

 

Explain the causes and mechanism of urban heat island effect. Discuss the strategies to minimize impacts of climate change on urban ecosystems.

16 Sep 2025
Answer :
Word Count : 1022
The urban heat island effect refers to the phenomenon where urban areas experience higher temperatures than their rural surroundings due to human activities, land-use changes, and alterations in the natural energy balance. The main causes of this effect can be understood through both physical and anthropogenic mechanisms. One of the primary causes is the replacement of natural vegetation with impervious surfaces such as concrete, asphalt, and buildings. These surfaces have high heat storage capacity and low albedo, meaning they absorb large amounts of solar radiation during the day and release it slowly at night, resulting in higher ambient temperatures. Urban geometry also plays a critical role; tall buildings and narrow streets create what is called the “canyon effect,” trapping heat and limiting air circulation, which further intensifies warming. Additionally, human activities like vehicular traffic, industrial operations, and air conditioning contribute anthropogenic heat to the urban atmosphere. The reduction of vegetation not only removes natural cooling through evapotranspiration but also reduces shading, which would otherwise limit surface heating. Air pollution, through the presence of greenhouse gases and aerosols, can trap outgoing longwave radiation, thereby exacerbating local warming. Together, these mechanisms create a localized thermal anomaly, especially pronounced during nighttime, when rural areas cool more rapidly than cities. The impacts of the urban heat island effect are
_______ _____ __________ ____ ________ ______ __________ ________ _________ _____ _____.
___ _______ __________ __________ __________ __________ ______ ________ ________ ____ _______ _________.
_______ _________ _______ _____ ______ _____.
___ _____ ________ ________ ____ ___ ____ ______ ____.
____ _____ ____ _____ ______ ______ _______ ________ ________ _________ _______ ____.
__________ _____ ___ _______ ______ _________.
_________ ______ _______ __________ ______ ___.
_________ _________ _____ ________ _______ ________ _____ ________.
_____ _________ _________ _________ __________ ________ _________ ________ _____ ______.
__________ __________ ______ _________ ___ _______ _______ ____ ________ ___ ____ ____.
_________ ________ ___ ____ ___ _____ ___ ___.
_____ ____ _________ ___ ____ ___ ________ ________ ___ _________ _________ ________.
___ _________ _______ ______ __________ ______.
______ __________ _____ _____ _____ _________ ________ _____ ________ ___ __________ ________.
________ ___ _____ ____ _________ _________ _______ ___ _________ __________ ______.
______ _____ _____ ________ __________ _____ ____ ___ _______ ____ _________.
________ ________ ________ ________ ___.
____ ____ _________ __________ ________.
____ _______ ______ ____ _____ __________ ____ __________ ___.
___ ___ ______ ______ _____ __________.
__________ ______ _______ ______ ________ _____ ________.
________ ________ ______ _____ _____ ________.
_____ _______ __________ ___ ____ _____ _______ _______.
_________ ________ ____ ____ ________ _________.
_______ _______ ______ ___ _____ ______ _______ ____ ________.
____ ___ ________ _______ ______ _____ ___ __________ _________ ____ _______.
___ ________ __________ _______ ______.
________ __________ _______ ____ _____.
_____ __________ ___ ____ ______ _______ __________ _________ ________ _________.
____ ______ _______ __________ _______ _________ _________ ________ __________ _______.
________ ________ _________ ___ ___ ________ _______.
_________ ___ ____ _____ ________ ___ ________ ______ ___ ______.
_________ ___ ____ _____ ________ ________.
_______ _______ ______ ____ ______ ________ _____ __________ ______ _____.
_______ ____ _______ _______ __________.
_________ ________ _______ ______ _____ ____ ______ __________ _____ ______ _______ _____.
______ _____ ________ ________ _____ __________ ___ __________ ____ _______ __________.
_________ __________ _________ _____ ___ ________ ____ ________ ______.
______ ___ __________ ____ ______ _________ ________ _____.
________ _______ _________ ______ ____.
_______ _______ __________ _____ ___ ______ ____.
_______ ______ _______ _____ _____ _____ ________ ____ ___ ___ _________ ____.
_________ _______ __________ ________ ____ _______ _____ ______.
____ __________ ____ ________ __________ _________ _______ _________.
_____ _______ __________ ______ __________ _____ ____ ____.
__________ _______ ____ ____ ________ __________ _______.
_______ ________ ____ ____ ________ _____ _______.
______ ___ ______ ___ _________ _________ ____ ______ ___ ______.
___ _________ _____ ________ ___ ______.
_____ __________ _________ _____ ______ __________ ______ ________ _________ ______.
_________ ______ ____ ______ ________ ____ _______ _______ _________ _____ __________.
_______ _______ _____ ________ __________ ___ _____.
________ ________ ________ _________ _____ ______.
___ ________ ______ _________ _________ _________ __________.
___ ____ ____ _______ ________ __________ ______ ___ _______ _______ ____.
_________ ________ _________ _______ _________.
____ __________ _________ ______ ________ _________.
_____ ___ ____ _____ _____ ___.
____ ___ _____ ______ _____ ____ ______ _____ ______ _________.
____ ___ ______ ______ ___ ______ __________ ___ ______.
____ ______ ______ __________ ____ ________ _________ _______ _____.
____ __________ ________ ____ _____ ______ __________ _______ ______ _____ _______ _______.
_________ _________ ___ ________ __________ _______ __________ ______.
_________ ______ ________ ___ _____ _________ ________ _______ _____.
__________ ______ _____ __________ ___ _______ _____ _________ ___ _____ _________ _________.
________ ____ __________ _____ _________ _________.
_________ ________ ______ _____ _______ ____ _______.
________ _______ _______ ____ ____ ____ ______ _________ ______.
_______ _______ ___ _______ ______ ___ ___ ____ __________ ________ ________.
______ _____ ___ ______ ______.
_______ ___ _______ _____ ___ _______ _________ __________.
_____ __________ ____ _____ ____ _________ ______.
_____ _________ ______ __________ _____ ________ __________ ___ ________ _________ _____ _______.
_____ ___ _____ ___ _____.
_________ _______ _________ ______ ______ ______ ______ _________ _________ __________ ______.
____ ___ _______ ______ _____ ____ __________ ___ ________ ____.
______ ______ _________ ______ ______ _________ _____ _____ ________ ______.
_____ _____ __________ ___ _______ __________ _______ __________ ______ ________ ________ __________.
__________ _______ __________ _________ _____ ____ __________ _______.
____ _________ _____ _____ ____ ____.
_______ ___ ______ ______ _______ _________ _________.
___ ________ _________ _______ __________ _______ __________ _______.
_____ ____ __________ ____ __________ __________ ______ ______.
___ ___ ___ ___ ____.
_______ _____ _____ __________ ______ ____ __________ ____ __________ _____.
_______ _____ _________ _________ ___ ________ _______ _________.
________ ________ ________ ______ ____ ____ _____ ________.
_____ ______ ______ ____ _____.
____ __________ ___ _______ _____.
___ _____ _______ _______ ________ _____ __________ ______ _____.
___ _______ __________ _______ __________ __________ ___ ___.
________ __________ _____ _______ ________ ________.
__________ _______ _________ ___ ________ _________ ___ ____.
_______ ____ ______ ____ ________ _________ ___ _____ ________ ___ ___ _________.
_________ _____ _______ _______ __________ ______.
____ _____ ___ ________ ____ ________ ______ ____ _______ _______ __________ __________.
______ _______ ________ _________ _____.
___ __________.
IGNOU ACADEMY
Your IGNOU journey, made easier.
  • Solved Assignments
  • Study Notes
  • Guess Papers
  • Question Papers
Skip in 10
Top
📞
Call Support Instant phone assistance IGNOU MEV 022 2025 2026 -  Explain the causes and mechanism of urban heat island effect | IGNOU Academy
→
🟢
WhatsApp Chat Fast live messaging
→
Email Us Business enquiries & support
→