In the commentary "Sustaining costal urban ecosystems" published in the latest issue of the London-based journal Nature Geoscience, Torbjörn E. Törnqvist, associate professor in Tulane's Department of Earth and Environmental Sciences and Douglas J. Meffert, deputy director of the Tulane/Xavier Center for Bioenvironmental Research, also say New Orleans must concentrate more of its population on the 50 percent of its land mass that lies above sea level.
"New Orleans could accommodate more than 300,000 residents above sea level, which by U.S. Census Bureau estimates is approximately the current population of the entire city," the authors write, citing a recent demographic study by colleague Richard Campanella, assistant research professor in Tulane's Department of Earth and Environmental Sciences. "The population density in New Orleans immediately before the exodus caused by Hurricane Katrina was only about 2,500 residents per square kilometer. By comparison, the present-day population density in Amsterdam, The Netherlands, a city in a broadly similar environmental setting, is almost 4,500 residents per square kilometer."
Törnqvist and Meffert also point out that much of the city's above sea level land remains vacant and undeveloped while urban sprawl continues in areas known to flood. Urban sprawl in flood-prone areas should be banned, they say, in New Orleans as well as in vulnerable areas nationwide such as St. Louis, MO. On the other hand rebuilding efforts in floodplains should be restricted to raised, storm-resistant structures like those featured in Brad Pitt's "Make it Right" project.
The professors also contend that efforts at wetlands restoration are currently "miniscule" and need to be ramped up, along with a better understanding of the role rising sea levels play in exacerbating the devastation brought on by hurricanes.
New Orleans offers an unprecedented opportunity to find more effective ways to make urban coastal areas safer around the world, Törnqvist and Meffert say.
"A concerted effort to restore and transform a coastal urban center whose functioning is inextricably tied to its surrounding natural ecosystem can only lead to new knowledge and understanding that will prove critical once comparable conditions confront Shanghai, Tokyo and New York City," the authors write. Nature Geoscience is a monthly, multi-disciplinary journal aimed at bringing together top-quality research across the spectrum of the earth sciences along with relevant work in related areas.
Michael Strecker | Newswise Science News
Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union
UM researchers study vast carbon residue of ocean life
19.10.2016 | University of Miami Rosenstiel School of Marine & Atmospheric Science
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences