Here are eight startups developing technological solutions to global urban problems

An artist's impression of Green City Solutions' City Tree in action in Paris. Image: Green City Solutions.

Across the world, the accelerating wave of urbanisation is contributing to greater, more complex challenges for cities that require an urgent response.

Air pollution, to take one example, is choking cities and citizens, a growing problem across the developing world and in burgeoning cities in developed nations. The World Health Organization warns pollution is causing millions of premature deaths, urging action including more green spaces in cities.

One innovative startup in Berlin, GreenCity Solutions, has built a revolutionary urban air filter – The City Tree – combining air purifying, specialized-moss cultures and the latest in Internet of Things (IoT) technology. The storey-high, free standing and largely self-sustaining CityTree packs the air filtration power of 275 trees into a tiny fraction of the space and maintenance cost.

In cities around the globe, startups and social enterprises are developing inventive, technology-driven solutions to tackling urban challenges. GreenCity Solutions is one of these game-changing companies, and has been recognized as a Global Urban Innovator by the NewCities Foundation, an international nonprofit dedicated to making cities connected, inclusive, healthy and vibrant.

The Global Urban Innovators program is designed to recognse innovative young companies that are reimagining new solutions from the ground up – and in effect, shaping the cities of tomorrow.

The 2017 Class of Global Urban Innovators, announced on 2 May, is global in scope and features technological solutions and products that are leveraging IoT, artificial intelligence, and cutting-edge data production and analysis to improve everyday life for residents of cities and enhance the life of the city itself.

The innovations that enhance the human experience range from Green City Solutions’ clean air creating technology to Safetipin, a mobile app created in the Indian city of Gurgaon,  that crowdsources and relays public security information. Safetipin recently completed a street safety audit for New Delhi, including data from over 60,000 users, while at the same time offering digital tools for ensuring a safe trip home for women across the city.

Others improve our experience traveling in cities, such as Songdo-based Alt-A, a sensor technology and data-crunching effort to make the streets safer through alert systems, and 3D-mapping analytics of vehicle-human traffic flows. In San Francisco, Spin is reimagining bikesharing with a fleet of GPS-equipped smart bikes that are unlocked using a mobile app and can be dropped off at any bike parking spot.

Cape Town-based WhereIsMyTransport, an open platform providing a detailed look at formal and informal public transport options in African cities, both improves experience for users and provide emerging cities with crucial transportation data for better planning.

“We believe in the potential of reliable and openly available public transport data to empower and transform emerging cities,” says Devin de Vries, co-founder of WhereIsMyTransport. “Our technological solutions make this possible.”


Meanwhile, innovators are also leveraging technology to tackle problems that affect the life of the city itself, at operations level, street level and delivery of services. Where cities everywhere continue to struggle with effective public consultation, ZenCity, in Tel Aviv, is showing how Artificial Intelligence can unlock new opportunities for digital engagement, capturing residents’ perceptions of the city across social media, the web and traditional channels such as 311 calls. 

And Small Change is creating large changes in the way Pittsburgh connects much needed finance for high-impact neighborhood urban development projects through equity crowdfunding.

IoT technology is also creating opportunities to reimagine how cities deliver their most essential services. Paris-based CityTaps partners with city utility companies and, through smart water meters and mobile money, is making the case for equitably delivering urban utilities. 

“Our vision is to bring running water to every urban home in the developing world,” says Grégoire Landel, CEO of CityTaps. “With access to water, public health is greatly improved while saving time and money for the urban poor.” 

In cities around the world, urban innovators are seizing the potential of emerging technologies, as well as the need to collaborate with those driving innovation. The Global Urban Innovators count among the most promising and most advanced projects anywhere. 

These forward-thinking entrepreneurs will take the stage at the NewCities Summit – the NewCities flagship event – in Incheon Songdo, South Korea from 7-9 June, where a global community of experts will delve into the new realities facing today’s cities with a focus on the theme Thriving Cities: The Building Blocks of Urban Wellbeing

The wider implications of the disruptive use of technology bring to the forefront this urban era’s most important questions and, possibly, some innovative answers. Exploring these questions and their impact on the city through the eyes of today’s innovators themselves will be crucial for building urban well-being in the years and decades to come.

Thomas Ledwell is director of communications, and Adam Cutts research coordinator, at NewCities.

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What’s killing northerners?

The Angel of the North. Image: Getty.

There is a stark disparity in wealth and health between people in the north and south of England, commonly referred to as England’s “north-south divide”. The causes of this inequality are complex; it’s influenced by the environment, jobs, migration and lifestyle factors – as well as the long-term political power imbalances, which have concentrated resources and investment in the south, especially in and around London.

Life expectancy is also lower in the north, mainly because the region is more deprived. But new analysis of national mortality data highlights a shockingly large mortality gap between young adults, aged 25 to 44, living in the north and south of England. This gap first emerged in the late 1990s, and seems to have been growing ever since.

In 1995, there were 2% more deaths among northerners aged 25 to 34 than southerners (in other words, 2% “excess mortality”). But by 2015, northerners in this age group were 29% more likely to die than their southern counterparts. Likewise, in the 35 to 44 age group, there was 3% difference in mortality between northerners and southerners in 1995. But by 2015, there were 49% more deaths among northerners than southerners in this age group.

Excess mortality in the north compared with south of England by age groups, from 1965 to 2015. Follow the lines to see that people born around 1980 are the ones most affected around 2015.

While mortality increased among northerners aged 25 to 34, and plateaued among 35 to 44-year-olds, southern mortality mainly declined across both age groups. Overall, between 2014 and 2016, northerners aged 25 to 44 were 41% more likely to die than southerners in the same age group. In real terms, this means that between 2014 and 2016, 1,881 more women and 3,530 more men aged between 25 and 44 years died in the north, than in the south.

What’s killing northerners?

To understand what’s driving this mortality gap among young adults, our team of researchers looked at the causes of death from 2014 to 2016, and sorted them into eight groups: accidents, alcohol related, cardiovascular related (heart conditions, diabetes, obesity and so on), suicide, drug related, breast cancer, other cancers and other causes.

Controlling for the age and sex of the population in the north and the south, we found that it was mostly the deaths of northern men contributing to the difference in mortality – and these deaths were caused mainly by cardiovascular conditions, alcohol and drug misuse. Accidents (for men) and cancer (for women) also played important roles.

From 2014 to 2016, northerners were 47% more likely to die for cardiovascular reasons, 109% for alcohol misuse and 60% for drug misuse, across both men and women aged 25 to 44 years old. Although the national rate of death from cardiovascular reasons has dropped since 1981, the longstanding gap between north and south remains.

Death and deprivation

The gap in life expectancy between north and south is usually put down to socioeconomic deprivation. We considered further data for 2016, to find out if this held true for deaths among young people. We found that, while two thirds of the gap were explained by the fact that people lived in deprived areas, the remaining one third could be caused by some unmeasured form of deprivation, or by differences in culture, infrastructure, migration or extreme weather.

Mortality for people aged 25 to 44 years in 2016, at small area geographical level for the whole of England.

Northern men faced a higher risk of dying young than northern women – partly because overall mortality rates are higher for men than for women, pretty much at every age, but also because men tend to be more susceptible to socioeconomic pressures. Although anachronistic, the expectation to have a job and be able to sustain a family weighs more on men. Accidents, alcohol misuse, drug misuse and suicide are all strongly associated with low socioeconomic status.

Suicide risk is twice as high among the most deprived men, compared to the most affluent. Suicide risk has also been associated with unemployment, and substantial increases in suicide have been observed during periods of recession – especially among men. Further evidence tells us that unskilled men between ages 25 and 39 are between ten and 20 times more likely to die from alcohol-related causes, compared to professionals.

Alcohol underpins the steep increase in liver cirrhosis deaths in Britain from the 1990s – which is when the north-south divide in mortality between people aged 25 to 44 also started to emerge. Previous research has shown that men in this age group, who live in the most deprived areas, are five times more likely to die from alcohol-related diseases than those in the most affluent areas. For women in deprived areas, the risk is four times greater.


It’s also widely known that mortality rates for cancer are higher in more deprived areas, and people have worse survival rates in places where smoking and alcohol abuse is more prevalent. Heroin and crack cocaine addiction and deaths from drug overdoses are also strongly associated with deprivation.

The greater number of deaths from accidents in the north should be considered in the context of transport infrastructure investment, which is heavily skewed towards the south – especially London, which enjoys the lowest mortality in the country. What’s more, if reliable and affordable public transport is not available, people will drive more and expose themselves to higher risk of an accident.

Deaths for young adults in the north of England have been increasing compared to those in the south since the late 1990s, creating new health divides between England’s regions. It seems that persistent social, economic and health inequalities are responsible for a growing trend of psychological distress, despair and risk taking among young northerners. Without major changes, the extreme concentration of power, wealth and opportunity in the south will continue to damage people’s health, and worsen the north-south divide.

The Conversation

Evangelos Kontopantelis, Professor in Data Science and Health Services Research, University of Manchester

This article is republished from The Conversation under a Creative Commons license. Read the original article.