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policymakers

Challenges of the Food-Water-Energy Nexus

While the food-water-energy nexus offers great advantages on one hand, on the other it’s important to keep in mind this system is not yet widely acknowledged, so it naturally comes with some hurdles. Read...

Cyclin’ in the Rain? What a Glorious Feeling!

It’s minus 30 degrees. Not the ideal temperature to cycle to work, is it? The enthusiasm to get on a bike while it is freezing cold or insufferably hot might, understandably so, be rather...

Architectural Design and Climate Mitigation & Adaptation

“It’s not just about water, not just about heat. It’s about humans and nature and how our cities function holistically and work together.” - Jeremy Anterola With cities becoming more populated and the growing demand...

Lyon Confluence: How a District is Retrofitting Heritage Buildings

SPL Lyon Confluence is carrying out a stand-out urban renewal project in a once-deprived district of central Lyon. Project Manager Etienne Vignali describes how this offers a significantly chance to undertake a large-scale decarbonisation...

Urban Biodiversity and the EU Taxonomy

It’s easy to forget we share our space in the city with other creatures. Either being small and almost invisible to the unobservant eye or being right there, planted in front of your front...

CityChangers.org: An Introduction

A place to get inspired, learn, share ideas and knowledge, and connect with the world's most inspiring urban voices: This is what we want CityChangers.org to be for you. Welcome to your new online...

Making Change Happen: Who to Involve and How to Get Them on Board

Wherever you’re at in your change-making journey, there’s no doubt that you’re going to need a bit of help somewhere along the line. In fact, it’s safe to say you won’t be able to...

How Can We Use Behavioural Insights to Engage People?

This article was written by Emma Sisk for Apolitical, the global learning platform for government. It was originally published here in August 2020. We’re featuring the article with kind permission by Apolitical. A majority of people across most OECD countries...

Better Together: How Cities Can Collaborate for Faster, More Effective Climate Action

This article was written by and for the C40 Knowledge Hub, which delivers cutting-edge insights and practical resources from leading climate cities for others working in city government. It was originally published here in September 2020. We’re featuring...

How Cities Can Use the Law to Advance Climate Action

This article was written by and for the C40 Knowledge Hub, delivering cutting-edge insights and practical resources from leading climate cities directed at those working in city government. It was originally published here in August 2021. We’re featuring...

How to Make Your Project Inclusive

If change in your city is exclusive, it’s simply not good enough. Change needs to be beneficial for every single citizen in your city. As this is a complex issue and certain perspectives are...

The Case for the Food-Water-Energy Nexus: How Cities Benefit

It’s about synergy of sectors – not competition – for sustainable use of given resources. We’re talking about the FWE nexus. Food, Water, and Energy “are highly interconnected: water is required for almost all...

How to Make Cities Resilient With the Food-Water-Energy Nexus

While the case for the FWE nexus concept is relatively clear to make in a theoretical, academic context, translating it to urban reality can be a struggle. Against a backdrop of climate change, urban...

How to Create a Low Traffic Neighbourhood

The idea behind Low Traffic Neighbourhoods (LTNs) is a straightforward one: it means closing off local streets to private cars and through traffic. Yet this seemingly ‘simple’ change can completely transform a residential area...

A Contributor’s Guide to CityChangers.org

Ready to hit the keys and share your story? Believe us, we’re just as excited as you are! Here’s a little guide on how to structure your knowledge and the story you’re telling, to...

How to Revitalise Cities: Doughnuts in Urban Development

Urban development isn’t always about the brand spanking new. It’s all well and good to build new modern constructions, but it’s even more essential to give those run-down, if not abandoned areas some love...

CityChanger Luca Ballarini: Empowering People Through City Imaging

When Luca Ballarini came up with the idea of ‘city imaging’, he didn’t yet know the impact it could have. Within less than a decade, the concept has become a powerful tool that anyone...

The Case for Sustainable Construction: Why Bother?

We’re all besotted with buildings. So much so that the average person spends 90% of their lifetime indoors. Buildings make our lives more comfortable and convenient; imagining a world without them is near-on impossible....