This weekend, the first planning session of the Global Parliament of Mayors took place in Amsterdam: a platform for mayors from across the world, triggered by Benjamin Barber’s book: If Mayors Ruled the World: Dysfunctional Nations, Rising Cities.

In this book the current political system and its leaders is dismissed as dysfunctional. Defined by borders and with an inevitable focus on national interests, they are not an effective vehicle to govern a world defined by interdependence. Mayors, presiding over cities with their more open, networked structure and cosmopolitan demographics, so the book argues, could do it better.

It is of no surprise that this book has been welcomed by the same political class as the one it praises: mayors. As was apparent during the first planning session of the GPM: a conference about mayors, for mayors, attended by mayors, moderated by mayors and hosted by a mayor, all triggered by a book about mayors.

I recognize many of the book’s observations. Many mayors are impressive figures and time appears to be on their side. Nation states (particularly the large ones) have an increasingly hard time and, in the context of a process of globalization, cities, and particularly small city-states, increasingly emerge victorious. Cities have first-hand experience with many of the things that occur in globalization’s wake, such as immigration and cultural and religious diversity, and are generally less dogmatic and more practical in dealing with them.

So far so good.

Originally published by Metropolis Magazine, this comprehensive analysis by sustainability expert Lance Hosey examines the current disputes within the green building industry, where market leader LEED currently finds competition from the Living Building Challenge, aiming for the "leading edge" of the market, and the Green Globes at the other end of the scale. Arguing for a more holistic understanding of what makes materials sustainable, Hosey examines the role that materials, and material industries such as the timber and chemical industries, can have in directing the aims and principles of these three sustainability rating systems - for better or for worse.

Recently, ArchDaily editors received an interesting request from an anonymous Communications Director of an unnamed New York firm, asking us “In your reporting, please do not repeat as fact, or as "official," the opinion that One World Trade Center in New York will be the tallest building in the United States.” He or she goes on to explain that the decision maker who 'announced' the building as the tallest in the US, the Council on Tall Buildings and Urban Habitat (CTBUH), is not officially endorsed by the AIA or the US Government, and that while their work is beneficial for architecture and cities as a whole, their criteria for height evaluation are flawed and have been criticized by many in the industry.

The desire to have the tallest building in a city, country or even the world goes back to at least the medieval period, when competing noble families of Italian hill towns such as San Gimignano would try to out-do each other's best construction efforts (jokes about the Freudian nature of such contests are, I imagine, not much younger). Perhaps the greatest symbol of this desire is the decorative crown of the Chrysler Building, which was developed in secret and enabled the building to briefly take the prize as the world's tallest, much to the surprise and ire of its competitors at the time.

With this competitive spirit apparently still very much alive, I thought it might be worthwhile to address the issue raised by our anonymous friend.

Settled comfortably around a black conference table – the only item of furniture in an office space still lacking its carpet tiles – on the 40th floor of the new Leadenhall Building, I had the opportunity to discuss with lead designer Graham Stirk and his partner, practice co-founder Richard Rogers, the forces that shaped their new building and how they came to be working in the City of London once again.

Rogers Stirk Harbour + Partners has a rich presence in the Square Mile, including the landmark Lloyd’s of London, standing directly opposite the Leadenhall Building. The firm has specialised in assured, sometimes assertive insertions within the City’s fine, historic urban grain, and so setting aside the sheer bravura of the 52-story, 225 meter skyscraper, with its sloping glass façade to the south (giving it the popular nickname of the Cheesegrater) the first question that arose was a simple one – how did the building come about?

There's no doubt about it - cycling in cities is a big deal these days. But, while cycle lanes and bike-sharing schemes are all well and good for our cities, the cycling revolution hasn't yet brought us many examples of beautifully designed infrastructure to gawp at. This article, originally printed on The Dirt as "Do Elevated Cycletracks Solve Problems or Just Create More?" discusses two seemingly similar examples of high profile cycling infrastructure, examining why one is a success and the other a non-starter.

This year, two designs – one proposed and one built – for elevated cycletracks, which create bicycle highways above street level, have gained considerable media attention. They highlight questions at the heart of urban design: Should cities blend or separate transportation options? How can cities best mitigate the hazards created when cars, bikes, mass transit, and pedestrians mix? How can cities create low-cost transportation networks in increasingly dense urban cores?

“Absorbing Modernity: 1914-2014 is an invitation to the national pavilions to show, each in their own way, the process of the erasure of national characteristics in architecture in favor of the almost universal adoption of a single modern language and a single repertoire of typologies.” In this article, originally published on Metropolis Magazine as "Whose Modernity?", Avinash Rajagopal investigates the conflict this mandated theme at the 2014 Venice Biennale unintentionally created between the Northern and Southern pavilions - with Northern pavilions tending to declare sole ownership over Modernism and many Southern pavilions denying that their countries were passive recipients of the North's globalization. For more on how the Southern pavilions challenged the typical conveyance of architectural history, continue reading after the break.

The Scandinavian countries have developed great buildings that resonate with both the scarce light in winter and the long summer days. Henry Plummer, Professor Emeritus at the University of Illinois at Urbana-Champaign, has very carefully studied the various daylight phenomena in the Nordic countries, with extensive photo journeys and brilliant writing that combines an analytical perspective with a poetic touch. His view of daylight looks beyond the practical advantages of using reflective white spaces to facilitate bright rooms; the passionate photographer is much more interested in the light effects that play with the local beauty of nature and touch the human soul.

Read on for more about how Nordic light enters white spaces

International design, architecture, engineering and planning firm HOK has recently announced its plan to acquire 360 Architecture, a firm specializing in sports facility design. With HOK’s global influence and 360 Architecture’s expertise, the acquisition could bring about significant advances in sports facility design and expand the market reach for each firm. When it comes to the business of architecture, acquisitions such as this often enable large corporate firms to take on a wider variety of projects, giving them a competitive edge against famous designer names in the industry. But what else can we learn from the growth of the world's largest firms?

Gentrification is seen as a rising menace in many cities. The process whereby rich "gentrifiers" move into neighborhoods, driving up property prices and thus driving out those unable to afford those prices, has drawn criticism from activists and planners for years. However, this article by io9 writer Annalee Newitz, first published by io9 as "This is What Gentrification Really Is", tells us that the issue is not quite the struggle between good and evil that it first appears to be. Gentrification is a process dependent on economy, political climate, and the mercurial nature of urban development itself - and sometimes fighting against it only serves to exacerbate the problem. Find out what we can do in the face of gentrification after the break.

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Originally published by Metropolis Magazine as “Playing in Traffic“, this article by Jack Hockenberry delves into the relationship between man and vehicle, illustrating the complex dynamic created in New York - a city with over 2.1 Million registered vehicles. Contrary to the car-centric schemes of New York's infamous former Master Planner Robert Moses, Hockenberry argues that the city is the "negative space" while vehicles are obscured by our unconscious.

It is a curiosity of modern urban life that the more cars crowd into cities, the more they become invisible. It’s a great feature that comes standard on any model these days. Unfortunately we can’t control it from the driver’s seat—however much we would like to wave our hands and watch through our windshields as gridlocked cars disappear, liberating us from traffic imprisonment. The invisibility I am speaking about only works if you’re a pedestrian or bicyclist. The number of motorized vehicles parked or driving at any given moment on the streets of New York City is astounding. An estimated 2.1 million are registered in the city, according to the state’s Department of Motor Vehicles. Yet we never fully register them visually when we’re walking on the streets. The city is the negative space and that is how our eyes increasingly navigate urban landscapes. Everything around the cars and trucks gets knitted together by the eye and, even though the vehicles are present, we have gradually learned to ignore them unless we’re standing in the direct line of moving traffic.

As modernist architects broke free from vernacular architecture and developed a homogenized international style, many created sterile spaces and places out of touch with the decorative warmth of historical forms of human inhabitation. Negative reactions to the brutality of Modernist spaces encouraged architectural movements such as post-modernism and deconstructivism, but these never managed to usurp the rational modernist box as a dominant architectural paradigm.

However, the intended machine-like precision of these buildings has often become unintentionally humanized over time, through the addition of curtains, coloring, or even through accidental breakage and imperfect repairs or alterations. I believe that building on the successes and failures of modernism has spawned a new and previously unclassified architectural style: Pixelism. Find out what this new phenomenon is after the break.

If you don't have access to an architecture library (and even if you do), sifting through shelves can take hours. Buying books can be even more painful — for your wallet, at least. Instead, why not browse this list of 25 books that are all free and easily accessible online? Some are well-known classics of architecture literature, but we hope you find a few surprises as well.

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The world is looking at the urban machine of Chinese cities, at the newly founded theme-cities and at the new urban economic investment areas around the cities. The buildings are repetitive, the areas are sometimes uninhabited, but the thing that leaves urban planners, architects and the public amazed is that these buildings are often completely sold out even before they are completed.

To buy these freshly constructed residences takes money, and over the last three decades the Chinese economic miracle served precisely to grow the per capita income. The reform of the economic system in 1978 was the driving force that triggered the mechanism of capital production. The reform led to millions of people migrating to the cities from the underdeveloped west of the country in search of higher salaries and a well-founded hope of revolutionizing their economic existence.

Lately, architects are sharing an increasing captivation with ruins. As our technologies for envisioning the buildings of the future become ever-more accurate – enabling us not only to walk through, hover over, and inhabit walls, but also to calculate exact quantities of materials, structural load capacities and costs – our fascination for ruin, a process that is governed by laws of nature and time in a manner that is spatially unpredictable and rarely uniform, has also seen a rise in popularity.

Blogs such as Ruin Porn, Abandoned America and Architecture of Doom draw from a recent sub-genre of photography, identified as ‘ruins photography’ or ‘ruin porn’. While buildings can go into decay for many reasons, these images tend to focus on urban decay, especially in cities such as Detroit, Chicago and Berlin, which saw a surge of industrialization in the last century that has since dwindled.