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A 3D Look at Shifting Urban Populations

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Cities are constantly evolving, and urban populations respond to a number of push–pull factors, including economic opportunity, lifestyle trends, land values, and natural disasters.

Beyond the headlines and raw census numbers, it can be difficult to take population patterns into perspective. The talented team over at The Pudding has created an amazing, granular map that shows these patterns as 3D stacks.

Our focus today will be on growth between 1990 and 2015, as urban settlement patterns across Canada and the U.S. shifted dramatically over this relatively short timeframe. Let’s take a look.

Growing Cities

One of the most dramatic examples of robust growth is Toronto.

Canada’s largest city nearly doubled its population since 1990, and growth was distributed throughout the region. This city is a rare example of both extra-urban and downtown residential growth.

toronto map high growth

vancouver seattle high growth map

Vancouver is another Canadian city with a swelling urban population base. The city’s recent population growth has been heavily concentrated along transit lines and the downtown core, resulting in a “spiky” visualization which resembles the condo towers now dotting the city’s skyline.

Nearby, Seattle has added over a million people to its population since 1990. With one of the strongest economies in the country, it’s unlikely that momentum will slow any time soon.

Growing Suburbs

Only recently have some cities begun to see urban residential construction. For much of the ’90s and ’00s, America’s growth was in peripheral suburbs, where land was plentiful and cheap.

dallas fort worth growth map
atlanta population map

This sprawl effect is particularly easy to spot in the Texas Triangle – which encompasses the cities of San Antonio, Austin, Dallas–Fort Worth, and Houston – and Atlanta.

los angeles orange county growth

While Los Angeles did see a modest amount of growth over the past 25 years, it was the Inland Empire – anchored by San Bernardino and Riverside – that saw the most dramatic population growth in the region. The construction boom is only intensifying. The region added 50,000 new residents between 2016 and 2017.

Boomtowns

fort mac gillette map growth

In general, smaller towns either lost population or remained relatively static. The exception is in places where resource extraction caused a growth spurt. Two prime examples are in Gillette, Wyoming, and Fort McMurray, Alberta. In the latter town, oil sands extraction added tens of thousands of new residents in a short amount of time.

Mixed growth and Static Cities

Chicago experienced one of the most striking growth patterns over the past 25 years. The contrast between urban decline and growth in the exurbs is clearly revealed in this visualization.

chicago mixed growth map

Contrast is also clear when looking at divergent patterns of Washington D.C. and Baltimore. The nation’s capital and surrounding areas have been growing steadily in recent years, whereas the neighboring city’s population is declining towards a 100-year low.

washington dc growth baltimore decline

Static Cities

While a number of urban areas experienced dramatic shifts in the last couple of decades, some cities sidestepped wild population swings. For example, much of Philadelphia’s population pattern remains similar to what it was in 1990.

philly static population map
scranton springfield static population

Scranton, Pennsylvania, and Springfield, Massachusetts, are examples of smaller cities that remained in stasis.

Decline and Disaster

A number of cities in America’s “Rust Belt” experienced declining populations. The visualizations of cities like Cleveland and Detroit show just how pronounced the exodus was.

cleveland population decline map
Detroit population decline map

The shrinking tax base and glut of vacant homes is causing a number of problems in the two cities, and with mixed economic prospects, it’s unclear what the next 25 years will bring in terms of population changes.

Often, population declines are the result of economic reasons such as a decline in manufacturing or general stagnation. On occasion though, the raw power of nature changes the course of a city’s history. This is the case in New Orleans, were Hurricane Katrina’s legacy is clearly seen in this visualization.

new orleans population map

New Orleans did recover in the years after the hurricane. However, as of 2015, the city was still far below its pre-Katrina population. Resettlement has been patchy as well, which is reflected in the towering red peaks of the population map.

To explore your city or other parts of the world, visit The Pudding’s interactive map.

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The Hydrogen City: How Hydrogen Can Help to Achieve Zero Emissions

Cities are drivers of growth and prosperity, but also the main contributors of pollution. Can hydrogen fuel the growth of cities with clean power?

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In the modern context, cities create somewhat of a paradox.

While cities are the main drivers for improving the lives of people and entire nations, they also tend to be the main contributors of pollution and CO2 emissions.

How can we encourage this growth, while also making city energy use sustainable?

Resolving the Paradox

Today’s infographic comes to us from the Canadian Hydrogen and Fuel Cell Association and it outlines hydrogen technology as a sustainable fuel for keeping urban economic engines running effectively for the future.

The Hydrogen City: How Hydrogen Can Help to Achieve Zero Emissions

The Urban Economic Engine

Today, more than half of the world’s population lives in cities, and according to U.N. estimates, that number will grow to 6.7 billion by 2050 – or about 68% of the global population.

Simultaneously, it is projected that developing economies such as India, Nigeria, Indonesia, Brazil, China, Malaysia, Kenya, Egypt, Turkey, and South Africa will drive global growth.

Development leads to urbanization which leads to increased economic activity:

The difficulty in this will be achieving a balance between growth and sustainability.

Currently, cities consume over two-thirds of the world’s energy and account for more than 70% of global CO2 emissions to produce 80% of global GDP.

Further, it’s projected by the McKinsey Global Institute that the economic output of the 600 largest cities and urban regions globally could grow $30 trillion by the year 2050, comprising for two-thirds of all economic growth.

With this growth will come increased demand for energy and C02 emissions.

The Hydrogen Fueled City

Hydrogen, along with fuel cell technology, may provide a flexible energy solution that could replace the many ways fossils fuels are used today for heat, power, and transportation.

When used, it creates water vapor and oxygen, instead of harmful smog in congested urban areas.

According to the Hydrogen Council, by 2050, hydrogen could each year generate:

  • 1,500 TWh of electricity
  • 10% of the heat and power required by households
  • Power for a fleet of 400 million cars

The infrastructure requirements for hydrogen make it easy to distribute at scale. Meanwhile, for heat and power, low concentrations of hydrogen can be blended into natural gas networks with ease.

Hydrogen can play a role in improving the resilience of renewable energy sources such as wind and solar, by being an energy carrier. By taking surplus electricity to generate hydrogen through electrolysis, energy can be stored for later use.

In short, hydrogen has the potential to provide the clean energy needed to keep cities running and growing while working towards zero emissions.

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Cities

The 100 Tallest Buildings in New York City

This visualization plots out the tallest buildings in New York City, as well as a few in the pipeline that will change the Big Apple’s skyline forever.

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The 100 Tallest Buildings in New York City

If you go to the Big Apple, the city’s signature skyline can make quite an impression.

The fact is, New York City has over 6,000 high-rise buildings in total, 274 of which are skyscrapers standing over 492 ft (150 m) tall. It’s an impressive portfolio of real estate, putting NYC as the number two destination globally for such towers, only behind Hong Kong.

But while some of the buildings have dominated the skyline seemingly forever, it’s also a landscape that is changing fast. New projects coming online will be among the city’s tallest, and they will dramatically alter any view of Midtown of Lower Manhattan for future onlookers.

A List of NYC’s Tallest Buildings

Today’s infographic comes to us from Liberty Cruise, and it shows the tallest buildings in New York City.

Here are the individual profiles of the current top ten:

RankBuilding NameHeightCompletion Date
#1One World Trade Center1,776 feet (541 m)2014
#2432 Park Avenue1,396 feet (426 m)2015
#330 Hudson Yards1,268 feet (387 m)2019
#4Empire State Building1,250 feet (381 m)1931
#5Bank of America Tower1,200 feet (366 m)2009
#63 World Trade Center1,079 feet (329 m)2018
#753W531,050 feet (320 m)2018
#8Chrysler Building1,046 feet (319 m)1930
#9The New York Times Building1,046 feet (319 m)2007
#1035 Hudson Yards1,009 feet (308 m)2018

Two of the biggest skyscrapers, the Chrysler Building and the Empire State Building, were erected during the Great Depression and still crack the top ten list today.

The Chrysler Building was actually the first skyscraper ever to be built at a height exceeding 1,000 feet. Meanwhile, the Empire State building, which was finished one year later, was the “world’s tallest building” for nearly 40 years.

However, as you can see, the rest of the buildings on the top ten list are more recent builds. It’s a testament to how fast the skyline of New York City has changed even in the last decade.

Towers in the Pipeline

But that’s not all, because the skyscraper boom in NYC hasn’t ended yet. The following megatowers are closing in on completion, and will displace many at the top of the current list:

111 West 57th Street
This building is set to be operational in mid-2019, and it’s already very noticeable on the NYC skyline. With a height of 1,428 feet (435 m), it will be the “skinniest” skyscraper in the world when completed, with a width-to-height ratio of 1:23.

Central Park Tower
This building, which was designed by the same people who did the Burj Khalifa in Dubai, will be the tallest building in the country by roof-height when done in 2020. It will clock in at 1,550 feet (472 m), making it the most sky-high residential building in the world.

45 Broad Street
With a height of 1,200 feet (366 m), this new building in Lower Manhattan is expected to be completed by 2021. If it were finished today, it would tie the Bank of America Tower for the fifth spot on a list of tallest buildings in the city.

One Vanderbilt
This massive building will be the fourth tallest in the city when completed in 2021. Standing at 1,401 feet (427 m), it will have a highly anticipated observation deck set 1,000 feet above the ground.

Want to visualize more data about the Big Apple?

Check out this animation, which shows the population pulse of a Manhattan workday.

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