Countries and cities all over the world adopted unprecedented mobility restrictions to combat the pandemic: the “pico y cedúla” example

We are the last generation that can prevent irreparable damage to our planet, let's clean up, catch up and smarten up.

Recent mobile phone-based technologies can provide new insights into the effects of large-scale migrations as they happen.

Transport accounts for a quarter of global carbon dioxide emissions and remains one of few sectors where emissions are still growing. A key challenge is determining the relative importance of pursuing a technological or a sociological solution: should we change transportation or the behaviour of people?

Much debate surrounds the choice of indicator used to determine economic performance and stage of development for governments, businesses and citizens.

In order to tackle exposure to air pollution emissions in urban environments, policies should aim to keep people away from the most polluted areas rather than focusing exclusively on containing the root of the pollution itself.

While cities exist in a mesmerizing diversity of size and form, it is possible to detect subtle patterns that are common to all cities in the form of both increasing returns to scale and economies of scale. Driving these dynamics, what matters for a city is a high density of social connections over time and space, facilitated by built-up space and everyday mobility patterns.

History took us from the age of foraging to the age of farming, will brain emulation technology now take us from the industrial era to the age of the "em" economy?

Why do urban centres thrive despite serious social problems such as crime and pollution? Cities represent the triumph of diversity over uniformity, bringing together many complementary skills and inputs to foster complex economic activities.

Following a period of relative prosperity, the survival of liberal democratic capitalism is threatened by the prolonged economic slump that set in after the 2008 banking crisis. It turns out that the case for a free market system is undermined by commonly observed scale economies; producing uneven development and inequality.

The intersection of two unexpected fields, physics and urban studies, suggests that what defines humanity is hidden in abstract mathematical probability distributions that we use to describe cities.

The challenge of moving towards a low carbon future is one now embraced by the political leaders of the G7, but how that path will unfold is still a live political debate. Local energy co-operatives offer a viable and progressive path to sustainability.

Advancements in sensing and information technology for road transport performance measurement, such as wireless sensors and Automatic Vehicle Identification AVI, have recently begun to contribute to sustainable development and management of urban transport systems.

High rates of urbanisation and population growth has led to housing and infrastructural incapacity in Ghana, threatening the country's economic success story.