March 07, 2012
Access to clean water is most difficult in Africa. Here a woman in Tanzania gathers water from a hole in a riverbed. Photo by: Bob Metcalf.
"Today we recognize a great achievement for the people of the world. This is one of the first MDG targets to be met. The successful efforts to provide greater access to drinking water are a testament to all who see the MDGs not as a dream, but as a vital tool for improving the lives of millions of the poorest people," UN Secretary General, Ban Ki-moon, said in statement.
Even as the goal has been met earlier, officials were quick to warn that the job on clean water was not finished. Around 11 percent of the world's population, nearly 800 million people, still do not have access to clean and sustainable drinking water, making them vulnerable to disease.
"We have reached an important target, but we cannot stop here," Ki-moon added. "Our next step must be to target the most difficult to reach, the poorest and the most disadvantaged people across the world. The United Nations General Assembly has recognized drinking water and sanitation as human rights. That means we must ensure that every person has access."
Other Millennium Development Goals (21 targets were set in 2000) proven more elusive. One target pledged the world would halt the loss of biodiversity by 2010, but the loss of the world's species has not halted and has likely worsened since the goals were made. Another goal, improved sanitation access for 75 percent of the world, is also likely to be missed by its target date of 2015. Currently, 37 percent of the global population (around 2.5 billion people) does not access to improved sanitation access, and that percentage is expected to go up, not fall as hoped, by 2013.
Other Millennium Development Goals include eradicating severe poverty, lessening hunger, empowering women, providing greater access to primary school, reducing infant mortality, combating AIDS and malaria, and improving the lives of slum dwellers.
11 challenges facing 7 billion super-consumers
(10/31/2011) Perhaps the most disconcerting thing about Halloween this year is not the ghouls and goblins taking to the streets, but a baby born somewhere in the world. It's not the baby's or the parent's fault, of course, but this child will become a part of an artificial, but still important, milestone: according to the UN, the Earth's seventh billionth person will be born today. That's seven billion people who require, in the very least, freshwater, food, shelter, medicine, and education. In some parts of the world, they will also have a car, an iPod, a suburban house and yard, pets, computers, a lawn-mower, a microwave, and perhaps a swimming pool. Though rarely addressed directly in policy (and more often than not avoided in polite conversations), the issue of overpopulation is central to environmentally sustainability and human welfare.
What does Nature give us? A special Earth Day article
(04/22/2011) There is no question that Earth has been a giving planet. Everything humans have needed to survive, and thrive, was provided by the natural world around us: food, water, medicine, materials for shelter, and even natural cycles such as climate and nutrients. Scientists have come to term such gifts 'ecosystem services', however the recognition of such services goes back thousands of years, and perhaps even farther if one accepts the caves paintings at Lascaux as evidence. Yet we have so disconnected ourselves from the natural world that it is easy—and often convenient—to forget that nature remains as giving as ever, even as it vanishes bit-by-bit. The rise of technology and industry may have distanced us superficially from nature, but it has not changed our reliance on the natural world: most of what we use and consume on a daily basis remains the product of multitudes of interactions within nature, and many of those interactions are imperiled. Beyond such physical goods, the natural world provides less tangible, but just as important, gifts in terms of beauty, art, and spirituality.
More biodiversity equals cleaner water, but why?
(04/07/2011) A new landmark study not only proves that adding more species to a freshwater stream linearly increases the ecosystem's ability to clean pollutants, but also shows why. The study, published in Nature found that by increasing the biodiversity of a lab controlled mini-stream from one algae species to eight caused the ecosystem to soak up nitrate pollution 4.5 times faster on average. To conduct the experiment, researchers used plastic to create 150 mini model streams. Molding the plastic, they recreated real stream-like habitats such as pools, runs, and eddies. Different species of algae gravitated toward particular mini-habitats, creating special ecological niches and allowing more of the stream to be utilized by the algae for soaking up the nitrate pollution. Less utilization of the available habitats resulted in a dirtier river and vice-versa.