Posts tagged with 'water'
In Cape Town, South Africa, and Chennai, India, “Day Zero” events where cities run out of water have drawn global media attention. But while these catastrophes seem like rare, temporary crises caused by droughts or mismanagement, life without ample water ...
Once-unthinkable water crises are becoming commonplace. Reservoirs in Chennai, India’s sixth-largest city, are nearly dry right now. Last year, residents of Cape Town, South Africa narrowly avoided their own “Day Zero” water shut-off. And the year before that, Rome rationed water to conserve scarce ...
Big ideas can forever alter the fate of cities when they are written into cement, steel and stone. When St. Petersburg, Russia, was created in 1703 by Peter the Great, he envisioned the new capital as an emblem of a modern ...
One of South India’s biggest cities is almost out of water. A year after Cape Town, South Africa, had its own “Day Zero” crisis, the reservoirs in Chennai are nearly dry, leaving millions in this usually-wet coastal city wondering if they ...
Chennai faced a devastating flood in 2015 that killed hundreds of people and displaced many more. Today, the southern Indian city’s four main reservoirs are virtually dry. This crisis is not only due to lack of water. Lack of proper management is ...
Most of the rising global attention to air pollution focuses on the impacts that ozone, particulate matter and other pollutants have on human health. This is natural; the numbers in the headlines are striking. The World Health Organization (WHO) estimates that ...
More than half the global population lacks access to safely managed sanitation services – 4.5 billion people. Every year, more than 340,000 children under the age of five die as a result of this problem. And we’re not solving it ...
Urbanization is changing the face of the planet – for better and for worse. City populations, GDP and investment are increasing exponentially. At the same time, carbon emissions are rising, more and more people are living in slums, and air pollution ...
Building efficiency is one of the most effective and affordable solutions for addressing climate change and capping carbon emissions. Yet it is so often drowned by discussions of electric vehicles and solar panels. Given that better buildings are a great ...
For decades, Kampala has raced to keep up with its own rapid growth. Set alongside Lake Victoria, the Ugandan capital more than quadrupled in physical footprint between 1991 and 2012 as population doubled to 1.5 million people. One of Kampala’s ...
In 2014, São Paulo nearly ran out of water. Schools closed, crops faltered and reservoirs were left at a tiny 5 percent of their capacity for the city and its surrounding population of 22 million. It was the worst drought in eight decades. ...
Most people don’t associate cities with trees, but urban areas are actually dependent on healthy forests. Trees within cities reduce heat, provide spaces for recreation and socialization, and increase property values. Nearby trees in the watersheds around cities filter drinking water and ...
In the 1990s, New York City needed a new water filtration system to serve its nearly 8 million people. But the prospect of spending $6-10 billion on a new water treatment plant, and another $100 million on annual operating costs, ...
Glaciers do more than feed our rivers and lakes, they also serve as critical savings banks for water withdrawals when other sources dry up. In South America, the glaciers and snowpack that crown the Andes provide slow, consistent meltwater that ...
If you’re reading this, you are probably a city dweller. More than half of humanity lives in cities, and the percentage continues to grow. As more and more of us move from the rural landscapes our ancestors called home, we are particularly estranged ...
