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America’s Multi-Billion Dollar Sports Betting Industry

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In 2015, Americans bet $149 billion illegally on sporting events.

Today’s infographic from Longitude breaks down America’s multi-billion dollar sports betting industry. It shows the four states where fixed odds betting through bookmakers is legal, and it also compares a more legal alternative that’s available in 43 states.

America's Multi-Billion Dollar Sports Betting Industry

The Sports Betting Industry

Sports betting is a thriving underground business. A recent example of this is Super Bowl 50, which is estimated to have fetched a record-breaking $4.1 billion in illegal bets. Only an additional $100 million of bets, or 3% of the total, were made legally.

But what’s the difference between a legal bet, and an underground one? It all depends on where you live and how the betting is done.

Fixed-odds betting, in which odds are created by a bookmaker, is legal in just four states: Montana, Oregon, Delaware, and of course Nevada.

Pari-mutuel wagering, which instead pools players bets together to calculate odds, is legal in 43 states. Pari-mutuel payout odds depend on the amount of bets, and generate transparent profits because of fixed commission fees paid to the operator.

The US horse racing industry already uses pari-mutuel wagering, and it generates a range of economic benefits. This includes $102 billion in economic benefits generated annually and the support of 1.2 million jobs across the country.

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Maps

Visualized: Which Coastal Cities are Sinking the Fastest?

Many major coastal cities are experiencing local land subsidence where underground soil and rock collapse, causing the surface above to sink.

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A cropped map and ranking of the fastest sinking coastal cities in the world by local land subsidence.

Which Coastal Cities Are Sinking the Fastest?

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

With sea levels rising, there is cause for concern about the livability of major coastal cities—often huge centers of trade and commerce, and homes to millions of people.

But an overlooked area is how coastal cities are themselves sinking—a phenomenon called relative local land subsidence (RLLS)—which occurs when underground materials, such as soil, rock, or even man-made structures, compact or collapse, causing the surface above to sink.

This can exacerbate the effects of rising sea levels (currently averaged at 3.7 mm/year), and is a useful metric to track for coastal communities.

Creator Planet Anomaly, looks at the top 10 cities ranked by the peak subsidence velocity. This graphic is based on a paper published by Nature Sustainability, which used satellite data to track land subsidence changes in 48 high-population coastal cities located within 50 kilometers of the coastline. Their data collection spanned six years from 2014 to 2020.

ℹ️ Interferometric synthetic aperture radar (InSAR) utilizes two images taken at different times, which are then compared to create an interferogram. This interferogram illustrates changes in land motion relative to a reference point in the satellite’s line-of-sight over time. By analyzing a series of these interferograms, researchers can estimate the long-term velocity of the ground’s surface for each city.

In that time period, they found that 44 of the cities they studied—many of them massively populated, developed megacities, built on flat, low-lying river deltas—had areas sinking faster than sea levels were rising.

The 10 Fastest Sinking Coastal Cities

One of the top cities on the list is Tianjin, China with a population of more than 14 million people, which has areas of the city experiencing peak RLLS velocities of 43 mm a year between 2014–2020. The median velocity is much lower, at 6 mm/year, which means some areas are sinking much faster than the overall metropolitan area.

Tianjin is bordered by Beijing municipality to the northwest and the Bohai Gulf to the east. In June 2023, large cracks appeared on Tianjin’s streets, caused by underground land collapses, a byproduct of extensive geothermal drilling, according to the local government.

RankCityCountryPeak Velocity
(mm/year)
Median Velocity
(mm/year)
1Tianjin🇨🇳 China436
2Ho Chi Minh City🇻🇳 Vietnam4316
3Chittagong🇧🇩 Bangladesh3712
4Yangon🇲🇲 Myanmar314
5Jakarta🇮🇩 Indonesia265
6Ahmedabad🇮🇳 India235
7Istanbul🇹🇷 Turkey196
8Houston🇺🇸 U.S.173
9Lagos🇳🇬 Nigeria172
10Manila🇵🇭 Philippines172

Ho Chi Minh City (population 9 million) in Vietnam also faces similar RLLS rates as Tianjin though its median velocity is much higher at 16 mm/year.

Chittagong, Bangladesh, Yangon, Myanmar, and Jakarta, Indonesia, round out the top five fastest sinking coastal cities by relative land subsidence. They all face a similar web of contributing factors as the authors of the paper note below:

“Many of these fast-subsiding coastal cities are rapidly expanding megacities, where anthropogenic factors, such as high demands for groundwater extraction and loading from densely constructed building structures, contribute to local land subsidence.” — Tay, C., Lindsey, E.O., Chin, S.T. et al.

In fact, Indonesia has ambitious plans to relocate its sinking capital, Jakarta, to another island, a move that could cost the Indonesian government more than $120 billion. This comes after the forecast that one-third of Jakarta could be submerged as early as 2050. Aside from the regular flooding, Jakarta is also extremely prone to earthquakes.

Why Measure Local Land Subsidence?

The researchers of this report argue that local land subsidence is largely underestimated in relative sea level rise assessments and is crucial for the sustainable development of coastal areas.

The data they’ve collected—peak velocity versus median velocity—also allows them to identify specific areas and neighborhoods in cities that are undergoing rapid subsidence and thus facing a greater exposure to coastal hazards.

In New York, for example, their results suggested that subsidence is only localized west of Breezy Point and “should not be extrapolated eastward along the coast” of Long Island.

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