If the world’s population lived like… Shortly after I started Per Square Mile, I produced an infographic that showed how big a city would have to be to house the world’s 7 billion people. There was a wrinkle, though—the city’s limits changed drastically depending on which real city it was modeled after. If we all lived like New Yorkers, for example, 7 billion people could fit into Texas. If we lived like Houstonians, though, we’d occupy much of the conterminous United States. Here’s that infographic one more time, in case you haven’t seen it: What’s missing from it is the land that it takes to support such a city. It turns out that question is maddeningly difficult to answer. But what we can do is compare different countries and how many resources their people—and their lifestyles—use. Sources: Global Footprint Network. 2011. Wackernagel, M., Kitzes, J., Moran, D., Goldfinger, S. & Thomas, M. (2006). Related posts: If the world’s population lived in one city… 7 billion Spare or share?
L’histoire de deux fillettes Inspiré du Rapport sur la santé dans le monde, 2003, ce récit met en parallèle la vie de deux fillettes nées l’une au Japon, l’autre en Sierra Leone, avec un écart d’espérance de vie de 50 ans. Alors qu'une fillette née aujourd'hui au Japon peut s'attendre à vivre jusqu'à environ 85 ans, une autre née au même moment en Sierra Leone a une espérance de vie qui ne dépasse pas 36 ans. La Japonaise va être convenablement vaccinée, nourrie et scolarisée. Si elle tombe enceinte, elle bénéficiera de soins maternels de haute qualité. Plus tard, elle pourra être atteinte de maladies chroniques, mais d'excellents services de traitement et de réadaptation seront à sa disposition et elle peut alors s'attendre à recevoir des médicaments d'une valeur moyenne de US $550 par an, et bien plus si nécessaire. En revanche, la fillette de Sierra Leone a peu de chances d'être vaccinée et risque fort de souffrir d'un déficit pondéral pendant toute son enfance. Voir aussi
The Supply Chain of CO2 Emissions - Country-specific Graphics Millions of tons (Mt) of CO 2 in trade to and from Albania in 2004. Regional differences between Emissions (i.e. the net effect of emissions . In each case, arrows depict largest interregional fluxes of emissions (Mt CO 2 y -1 ) from net exporting countries (blues) to net importing countries (reds); the threshold for arrows is Mt CO 2 y -1 . Fluxes to and from Europe are aggregated to include all member states of the EU-27. 5 Mt where extracted 7 Mt by where produced by where extracted Greece Italy Turkey Kazakhstan Rest of Former Soviet Union Russian Federation Middle East China Rest of North Africa Iran Albania Ukraine Rest of World Source of Fossil Fuel Emissions in Albania | For CO 2 emissions produced by burning Fuel in Albania in 2004, the pie chart at left shows where the burned Fuel was extracted.
DNA Sequencing Costs DNA Sequencing Costs Data from the NHGRI Genome Sequencing Program (GSP) Overview For many years, the National Human Genome Research Institute (NHGRI) has tracked the costs associated with DNA sequencing performed at the sequencing centers funded by the Institute. The cost-accounting data presented here are summarized relative to two metrics: (1) "Cost per Megabase of DNA Sequence" - the cost of determining one megabase (Mb; a million bases) of DNA sequence of a specified quality [see below]; (2) "Cost per Genome" - the cost of sequencing a human-sized genome. To illustrate the nature of the reductions in DNA sequencing costs, each graph also shows hypothetical data reflecting Moore's Law, which describes a long-term trend in the computer hardware industry that involves the doubling of 'compute power' every two years (See: Moore's Law [wikipedia.org]). These data, however, do not capture all of the costs associated with the NHGRI Large-Scale Genome Sequencing Program. Cost Categories
Vaccinophobia - vaccine fear, vaccines fear, vaccination fear, vaccine phobia, vaccines phobia, vaccination phobia, fear of vaccines, phobia of vaccines In order to provide good information on Vaccinophobia it is best to first understand what a phobia is. I will present some information on phobia below. Please use the other links in the navigation bar to find information on Vaccinophobia. What is phobia? A phobia is a strong, persistent fear of situations, objects, activities, or persons. Types of phobias: Social phobias, Specific phobias and Agoraphobia Social phobias are fears that involve other people or social situations such as performance anxiety, fears of embarrassment or humiliation by scrutiny of others. Specific phobias are typically fears of certain objects or situations. Agoraphobia is a fear of experiencing a panic attack in a place or situation from which escape may be difficult or embarrassing or they cannot obtain help.
Income inequality, as seen from space Last week, I wrote about how urban trees—or the lack thereof—can reveal income inequality. After writing that article, I was curious, could I actually see income inequality from space? It turned out to be easier than I expected. Below are satellite images from Google Earth that show two neighborhoods from a selection of cities around the world. Rio de Janeiro Rocinha Zona Sul Oakland West Oakland Piedmont Houston Fourth Ward River Oaks Chicago Woodlawn Hyde Park Beijing Fengtai Chaoyang Boston metro area, Massachusetts Ball Square, Somerville West Cambridge Your examples Do you have other cities or neighborhoods in mind? Be sure to include the names of the cities and neighborhoods you’re highlighting and if you’d like me to mention your name. Your examples are now posted! Related posts: Urban trees reveal income inequality Income inequality in the Roman Empire Ghosts of geography
Les inégalités face à la santé - Etude d'une… - Les inégalités face… - Quelques… - L'état sanitaire… - A tale of two girls - Histoire-géo à Crécy en Ponthieu New Research Casts Doubt on Doomsday Water Shortage Predictions From the Andes to the Himalayas, scientists are starting to question exactly how much glaciers contribute to river water used downstream for drinking and irrigation. The answers could turn the conventional wisdom about glacier melt on its head. A growing number of studies based on satellite data and stream chemistry analyses have found that far less surface water comes from glacier melt than previously assumed. In Peru's Rio Santa, which drains the Cordilleras Blanca mountain range, glacier contribution appears to be between 10 and 20 percent. In the eastern Himalayas, it is less than 5 percent. "If anything, that's probably fairly large," said Richard Armstrong, a senior research scientist at the Boulder, Colo. "Most of the people downstream, they get the water from the monsoon," Armstrong said. The Himalayan glaciers feed into Asia's biggest rivers: the Indus, the Ganges and the Brahmaputra in India, Pakistan and Bangladesh, and the Yellow and Yangtze rivers in China.