Rapport sur les inégalités dans les villes aux États-Unis
Les #inégalités de revenus augmentent partout, mais encore plus dans les grandes #villes (ce qui n’était pas le cas dans les années 1980, où elles étaient à peu près indépendantes de la taille de la ville).
Black people in N.J. say they’re more likely to be punched, kicked by cops. Now, data backs that up. | NJ.com
Newly released data shows the true extent of industrial fishing. More than 55 percent of the surface of the world’s oceans is fished, with China accounting for vastly more than any other country.
In the present study, we quantify and validate global accessibility to high-density urban centres at a resolution of 1×1 kilometre for 2015, as measured by travel time. The last global mapping effort to measure accessibility was for the year 2000, a time that predates both substantial investment and expansion of transportation infrastructure and an extraordinary improvement in the data quantity and quality of accessibility measures. The game-changing improvement underpinning this work is the first-ever, global-scale synthesis of two leading roads datasets – #OpenStreetMap (OSM) data and #distance-to-roads data derived from the #Google_roads database – which resulted in a nearly five-fold increase in the mapped road area relative to that used to produce the circa 2000 map. A major strength of the new roads data is its inclusion of minor roads (e.g., unpaved rural roads), which comprise a large proportion of roads in many low-resource settings and were largely absent or geographically inaccurate in previous roads databases. As such, the improvements in our accessibility map are most prominent in the areas where quality data are most needed for informing sustainable development policies and actions. To illustrate the far-reaching utility of our 2015 global accessibility map, we conduct exploratory analyses that enumerate geographic and wealth-based inequities in accessibility. We also show that shorter travel times to population centres in low- to middle-income countries is strongly associated with socioeconomic and health indicators (i.e., household wealth, educational attainment, and healthcare utilization), highlighting the vital role of accessibility in the pursuit of sustainable development worldwide. Beyond the socioeconomic and health domains, this work could be used to inform environmental and conservation efforts to balance infrastructure demands with ecosystem preservation.
List of U.S. Military Bases Abroad, 2017 - David Vine
avec une visualisation ici
#Population Estimation Service » Gridded Population of the World (GPW), v4 | SEDAC
The pes-v2 service accepts polygons that define areas of interest, and a string which selects a year from the set of 2000, 2005, 2010, 2015 or 2020 then returns population totals, land area, quality measures, and basic parametric statistics for the requested polygons based on data from SEDAC’s Gridded Population of the World version 4 (GPWv4) dataset.
Monitoring universal health coverage within the Sustainable Development Goals: development and baseline data for an index of essential health services - The Lancet Global Health
The Earth2014 grids offer topography data with global coverage at 1 arc-minute (about 1.8 km) spatial resolution and may be suitable for applications such as global gravity modelling, particularly forward modelling, geo-visualisation (Fig. 1) and geophysical studies.
The High Resolution Settlement Layer (HRSL) provides estimates of human population distribution at a resolution of 1 arc-second (approximately 30m) for the year 2015. The population estimates are based on recent census data and high-resolution (0.5m) satellite imagery from DigitalGlobe. The population grids provide detailed delineation of settlements in both urban and rural areas, which is useful for many research areas—from disaster response and humanitarian planning to the development of communications infrastructure. The settlement extent data were developed by the Connectivity Lab at Facebook using computer vision techniques to classify blocks of optical satellite data as settled (containing buildings) or not. CIESIN used proportional allocation to distribute population data from subnational census data to the settlement extents. The population data have been developed for 18 countries: Algeria, Burkina Faso, Cambodia, Ghana, Haiti, Ivory Coast, Kenya, Madagascar, Malawi, Mexico, Mozambique, the Philippines, Puerto Rico, Rwanda, South Africa, Sri Lanka, Tanzania, Thailand, and Uganda. Read more about the project here.
ici une image de Cape Town :
An open, multilingual knowledge graph
#ConceptNet is a knowledge graph of things people know and computers should know, expressed in various natural languages.
The super rich are hiding a ton of money offshore - Business Insider
Because offshore wealth is very concentrated at the top, accounting for it increases the top 0.01% wealth share substantially in Europe, even in countries that do not use tax havens extensively. It has considerable effects in Russia, where the vast majority of wealth at the top is held offshore," the authors write.
Around 60% of the wealth of Russia’s richest households is held offshore, the economists estimate.
city model (GHS-SMOD)
Format: the grid data are distributed as raster files in TIF format. The ZIP files contain raster files together with pyramids (i.e., TIF and OVR files).
Temporal resolution: 1975, 1990, 2000, 2015
The Global Human Settlement Layer: an amazing new global population dataset
Who are the biggest spenders on lobbying? Is there a balance between corporate and public interest lobbying? Are lobbyists spending more or less than last year? Which organisations have the most meetings with the Commission elite? Which organisations have the most EU parliament lobbyist passes? LobbyFacts can help you answer these kinds of questions.
Study links most Amazon deforestation to 128 slaughterhouses
A new study by the NGO Imazon finds that just 128 slaughterhouses process 93 percent of cattle raised in the Brazilian Amazon. The areas of influence supplying the herds to those plants coincide with where the most Amazon deforestation occurs.
Inside Airbnb: Paris. Adding Data to the Debate.
How is Airbnb really being used in and affecting your neighbourhoods?
Facets contains two robust visualizations to aid in understanding and analyzing machine learning datasets. Get a sense of the shape of each feature of your dataset using Facets Overview, or explore individual observations using Facets Dive.
Vast set of public CVs reveals the world’s most migratory scientists | Science | AAAS
Science analyzed data from a new source: ORCID, the nonprofit organization that assigns unique identity codes to researchers (see full data set). ORCID wasn’t designed for that purpose, but its database of 3 million scientists—by far the largest public data set of academic CVs ever released—may become a vital tool for charting their flow around the world.
Covering the Extractive Industries | Global Investigative Journalism Network
There is a great deal of scope for journalists to do investigative reporting on the extractive sector. (…) Below, you can find a road map to improve your coverage, including new tools that enable journalists and bloggers to obtain and verify information, and where to get ideas for future stories.
Assassination Witness - Political killings in South Africa
et sur les assassinats politiques ce rapport de 2014 :