By now, we all know that cities account for more than half the world’s population. Come 2050, it is expected that another 2.5 billion people will move from villages to cities. In China alone, more people that the whole population of the USA today will move into cities by 2050. These are mind-boggling numbers and present a scary picture of the future liveability of cities or rather the lack of it, especially in South and Southeast Asia.
Already, we see how a day of intense rain causes havoc with flooding. The inexorable march of climate change is bringing more intense rain at odd times or no rain at all. The ‘heat island’ effect of cities with bumper-to-bumper traffic jostling for space with humans gets accentuated during times of no rain. Continue reading
Everywhere you look, you find data. There is data from invoices, storage records and delivery records. There is data from millions of machines: sensors, meters, smartphones, CC TV cameras, industrial machines and endless gizmos. Then there is social data coming from Facebook likes, tweets, youtube views and more. There is data about data. As the world gets “smarter” with more collection of data, it is also getting more cluttered. Continue reading
A world without pumps would be a world with no water from taps. It would also be a world flooded with water in all the wrong places. And of course, it would be a world where sewage treatment is nearly impossible. Continue reading
The New York Times has just published an article which reports that malnutrition in India is not so much caused by the lack of nutrition as due to the lack of sanitation. This is indeed a damning discovery.
http://www.nytimes.com/2014/07/15/world/asia/poor-sanitation-in-india-may-afflict-well-fed-children-with-malnutrition.html Continue reading
Each time a city is chosen for holding an important event such as the Olympics, it transforms the city’s landscape forever. Glittering new sporting venues shoot up along with parks, flyovers, apartments and other structures. The entire city gears up for the arrival of hundreds of thousands of visitors. Infrastructure assumes paramount importance. Suddenly, there is money to build new water/wastewater treatment plants and power stations. Continue reading
The Titanic – Climate Change analogy is getting more uncanny. The latest assessment by the IPCC not only re-confirms the warming trajectory of the global climate but makes by far the most definitive assertion that humans are the cause. Continue reading