urban heating Archives - Disasters News

Mar12025 by Editor DeskNo Comments

Experts Warn of Rising Urban Heat and Extreme Weather at Anil Agarwal Dialogue 2025

Breaking News, Climate Actions, Thoughts & Talks

At the Anil Agarwal Dialogue 2025, climate experts painted a grim picture of India's worsening extreme weather, highlighting urban heat, rising nighttime temperatures, and the growing impact of climate change on agriculture. Urban Heat and Warm Nights on the Rise In the session titled "In the Red: Why Are Our Cities Heating Up?", experts discussed how increasing urban heat islands and warm nights are endangering public health and livelihoods. Climate scientist Roxy Mathew Koll from the Indian Institute of Tropical Meteorology, Pune, explained that India is highly vulnerable to extreme weather due to its tropical location and rapidly warming oceans. “The Indian Ocean may enter a permanent heatwave state by 2050,” Koll warned, adding that oceanic heatwaves could increase from 20–50 ...

Study Finds Global Cities Falling Short on Tree Canopy Cover for Urban Health

Breaking News, Climate Actions, Environment

New research analyzing access to urban greenery across eight major global cities, including Melbourne and Sydney, reveals alarming gaps in tree canopy cover, despite the presence of visible trees. The study, published in Nature Communications, applies the ‘3-30-300’ rule, a sustainable cities benchmark, to evaluate urban nature access and its benefits. The '3-30-300' Rule Explained The rule, developed by Dutch urban forestry expert Professor Cecil Konijnendijk, suggests every home, school, and workplace should: Have a view of at least three trees. Be in a neighborhood with 30% tree canopy cover. Be within 300 meters of a park. While most buildings in the study met the "three trees" requirement, almost all cities fell short of the 30% canopy cover benchmark. Key Findi...

Rising Temperatures in India’s Metro Cities Understanding the Urban Heat Island Effect

Breaking News, Climate Actions, Environment

As the calendar flips to May, India's major metropolitan cities are experiencing a surge in temperatures, with Delhi, Mumbai, Chennai, and Bengaluru all recording high mercury levels. The phenomenon is not merely a seasonal shift but is closely linked to the urban heat island effect, significantly impacting urban environments. The urban heat island effect describes a situation where urban areas exhibit higher temperatures compared to their rural surroundings. This disparity arises primarily due to human activities and the infrastructure in cities, which absorb and retain heat more efficiently than natural landscapes. Causes and Effects Urban areas, with their abundance of concrete and asphalt, absorb heat during the day and release it slowly, leading to elevated temperatures, pa...