Posts tagged water
Posts tagged water
This film from Spain is about the 2000 Cochabamba protests in Bolivia. You should check it out if you haven’t seen it or not familiar with the Cochabamba Water War (another nickname for the 2000 protests).
According to The Ecologist in 2000, the World Bank declared it would not “renew” a 25 million USD loan to Bolivia unless it privatized its water services. According to Jim Shultz, executive director of the Democracy Center in Cochabamba, the World Bank believed that “poor governments are often too plagued by local corruption and too ill equipped to run public water systems efficiently. …[and that the use of private corporations] opens the door to needed investment and skilled management,”
In a 1999 Public Expenditure Review, the World Bank stated that “no subsidies should be given to ameliorate the increase in water tariffs in Cochabamba”.The New Yorker reported on the World Bank’s motives, “Most of the poorest neighborhoods were not hooked up to the network, so state subsidies to the water utility went mainly to industries and middle-class neighborhoods; the poor paid far more for water of dubious purity from trucks and handcarts. In the World Bank’s view, it was a city that was crying out for water privatization.”
It’s an amazing case of poor people uniting and rising above greedy capitalists and neoliberals, you should read more.
Astronaut Don Pettit plays around with the oscillating physics of water spheres in the weightless environment aboard the ISS. Part of his super-cool “Science Off the Sphere” series.
Singapore’s latest development will finally blossom later this month, with an imposing canopy of artificial trees up to 50 meters high towering over a vast urban oasis.
The colossal solar-powered supertrees are found in the Bay South garden, which opens to the public on June 29. It is part of a 250-acre landscaping project — Gardens by the Bay — that is an initiative from Singapore’s National Parks Board that will see the cultivation of flora and fauna from foreign lands.
The man-made mechanical forest consists of 18 supertrees that act as vertical gardens, generating solar power, acting as air venting ducts for nearby conservatories, and collecting rainwater. To generate electricity, 11 of the supertrees are fitted with solar photovoltaic systems that convert sunlight into energy, which provides lighting and aids water technology within the conservatories below.
Varying in height between 25 and 50 meters, each supertree features tropical flowers and various ferns climbing across its steel framework. The large canopies also operate as temperature moderators, absorbing and dispersing heat, as well as providing shelter from the hot temperatures of Singapore’s climate to visitors walking beneath.
The project is part of a redevelopment scheme to create a new downtown district in the Marina Bay area, on Singapore’s south side. Project organizers hope the completed Gardens by the Bay will become an eco-tourist destination showcasing sustainable practices and plants from across the globe.
The horticultural oasis will be a contrast to the country’s extremely dense urban environment, forming part of the government’s overall strategy to transform Singapore into a “city in a garden.”
Check out the rest of the article here.
U.S. creates first ‘National Blueway’
Unlike the current patchwork of protections for rivers, a National Blueway will cover an entire river ‘from source to sea,’ including its watershed.
Floating Water Bridge
Known as the water thread experiment, this phenomenon shown above seems to defy the intuitive laws of everyday physics. The experiment was first demonstrated in 1863 by British Engineer William Armstrong.
Two containers of deionized water, placed in some sort of insulator (glass beakers work fine), must be connected by a thin thread and exposed to a high-voltage charge (one beaker receives the positive charge, and the negative to the other.) At a critical voltage threshold, a water bridge forms between the two containers across the thread - which remains even when the containers are separated!
Typically, the diameter of this bridge is no more than 1-3 mm, but can remain intact as far as an 25mm! The surface temperature, due to the voltage, rises from about 20 °C (68 °F) up to 60 °C(140 °F)! The longest that the phenomenon has lasted is 45 minutes.
Urbanization: ‘Thinking Cities, Networked Society’
The documentary ‘Thinking Cities’ deals with one of the most dramatic societal trends happening today: urbanization. The world population is expected to soar to more than 9 billion people by 2050, with roughly 70 percent living in cities. At the same time, information communications technology (ICT) is extending its reach.
These parallel trends are intersecting at a time in which the world faces serious economic, environmental, and social challenges in achieving a more sustainable development. Thinking Cities explores the challenges and opportunities of urbanization in the Networked Society.
(‘The World at 7 Billion - Urbanization’ Infographic’: Reuters)
Great Lakes face stresses from run-off, invasive species
The 5 lakes, which contain one-fifth of the world’s fresh water and supply millions of people, may be ‘veering close to ecosystem collapse.’