The unplanned expansion in real estate is taking its toll on environment and human health in Bengaluru.
A study conducted by the Indian Institute of Science (IISc) has raised the alarm bells. The study shows 525% growth in built-up area in Bengaluru in the last four decades, 78% decline in vegetation 79% decline in water bodies.
In an earlier report, Dr T V Ramachandra from IISc and his colleague Dr. Bharath H Aithal studied land use dynamics in Bengaluru, using remote sensing data from Landsat satellites.
The study showed that through exponential and unbridled growth “Bengaluru is gradually becoming an unliveable city and will be dead in five years.”
Bengaluru’s land growth or concretisation has increased by 925 percent since 1970. And this essentially means the city is just getting worse by the day.
These two charts in this series show the changes in landscape of the Agara-Bellandur wetlands from 2000-2015.
The satellite imagery showed that in 2014, Bengaluru, which currently has a population of over 95 lakh, had just 14,78,500 trees.
Talking about how pathetic the situation is, Ramachandra said:
“For every seven persons there is one tree. Based on age, every day one person exhales 540-900 grams of carbon dioxide and one hectare of trees takes in close to 8 ton of carbon dioxide. So based on that calculation every person needs 8 trees. So you can imagine how pathetic the situation is.”
Bengaluru was the most sought-after among big cities given its pleasant climate and the easy availability of land, a decent economy and low-key politics.
Prof Ramachandra said the government must take necessary steps to decongest Bengaluru. Besides banning new industries in the city, the government should make sure other districts get these economic benefits.