Showing posts with label drought affects Amazon. Show all posts
Showing posts with label drought affects Amazon. Show all posts

Saturday, January 29, 2011

Rainwater Collection Design For Yemen Wins Award

A street scene in Zabid, Yemen. Photo: Franco Pecchio / Creative Commons via TreeHugger.

Approximately, one year ago, I blogged about the water crisis in the nation of Yemen resulting in water riots with fatalities; and, threat that Sana'a, Yemen would become the first capital city to die of thirst.

Of all the thirsty countries in the arid Middle East, perhaps the worst off is Yemen, where the mountainous capital city of Sana'a is rapidly running out of water altogether. What water there is in the country's cities is often heavily polluted, causing illnesses for people who drink it because they are too poor to buy bottled water. What's the solution? According to the recent winner of an international prize for urban innovation, Yemenis need to look to their rural past to protect their future of their cities.

Sabrina Faber, a longtime resident of Yemen, noticed while trekking in the countryside that rural residents still employed a traditional way of coping with the country's frequent water shortages: collecting rainwater on mountaintop cisterns. She proposed a variation on this idea for Yemen's cities in her winning entry for the Phillips Livable Cities Award:
Today, many of Yemen's cisterns are in a state of disrepair, or in areas of the country that are now uninhabited. However, Sabrina's RAINS proposal revisits the traditional Yemeni technique of harvesting rainwater from flat rooftops. Her scheme proposes the modification of the existing structures in Sana'a to capture, filter, and store rainwater. Each modified cistern would be capable of generating 10,000 to 50,000 liters of clean, dependable water for domestic use annually.
Here is a short video describing the winning idea submitted by Sabrina Faber.



Launched in May 2010, the Philips Livable Cities Award seeks to "generate practical, achievable ideas for improving the health and well-being of people living in cities." This year's contest drew 450 ideas from 29 countries, eight of which were selected as finalists. A public vote and judging by an expert panel crowned Faber's "Rainwater Aggregation for Yemen" the overall winner at a ceremony this week in Amsterdam, granting her €75,000 (about $125,000) to start working with local contractors and associations to begin implementing the idea on Sana'a buildings.

Second-place winner Manuel Rapoport's project will create safe, portable recreational areas in Buenos Aires, Argentina, by closing streets to motorized traffic on weekends and during public holidays. Other finalists with an environmental bent proposed hosting a competition for designs to transform neglected spaces in Binghamton, New York, and powering streetlights with wind and solar energy.

Via TreeHugger

Monday, January 10, 2011

The Lungs of the Earth Need Immediate Pulmonary Assistance

Original (unaltered) photo: Ivan Mlinaric / cc

If the billion acres of Amazon rainforest are 'the lungs of the Earth', then our planet had better get in to see a pulmonary specialist immediately. According to research conducted with the help of satellite imagery, the typically lush Amazon is losing its greenness -- with an astonishing 618 million acres looking a bit on the brown and wilted side. Scientists studying the phenomenon say that last year's strangling drought is behind the change. There's just one problem though -- the rain's returned, but the green has not.

In the months following the break of the Amazon drought, an international team of researchers, led by Boston University's Liang Xu, pored over recent satellite data and arrived at a troubling conclusion: the word's largest rainforest is in failing health, and the implications of this are planet-wide. While the Amazon is an important source of the Earth's oxygen, it also serves a vital role as a carbon sink. And, let's not forget that an untold number of unique species (both animal and plant life) live there, too, making it one of the most biologically diverse ecosystems in the world.

"The greenness levels of Amazonian vegetation -- a measure of its health -- decreased dramatically over an area more than three and one-half times the size of Texas and did not recover to normal levels, even after the drought ended in late October 2010," Liang Xu said in a statement, as reported by The International Business Times.

Areas in brown show indicate where greenness levels have dropped. Image courtesy: TreeHugger.com

Last year's drought in the Amazon rainforest is considered one of the worst on record, reducing major river-ways into sun-baked plains of mud and clay. As might be expected from the lack of rainfall, huge swathes of pristine vegetation in the region bore the brunt of the impact -- but what worries researchers is the fact that the forest has yet to rebound, even though precipitation levels returned to normal in October 2010.

Scientists have long warned of the dangers facing forest ecosystems, like in the Amazon, from the devastating impact of climate change -- potentially transforming once lush zones into areas of savannas or deserts.

Perhaps it is only by tackling issues such as the unrelenting release of carbon emissions on a global scale can the world -- quite literally -- breath a little easier.

Via TreeHugger.com