While speaking to the UN-Habitat Governing Council in Nairobi back in 2012, the former UN Secretary-general Ban Ki-Moon said: “Our struggle for global sustainability will be won or lost in cities. The potential of urbanisation to lift millions of people from poverty and to accelerate economic growth is huge, as demonstrated in recent decades by some of the major economies.” The global trend for urbanisation is one of the defining characteristics of the post-industrial revolution era. The phenomenon has gained traction with people at large on account of fast-changing demographic and economic realities. Socioeconomic improvements in urban life catch the fancy of middle and lower-middle strata. Therefore, urban centres have witnessed an unprecedented influx of people migrating from peripheries to cities to seek better living standards. It is estimated that the proportion of people living in urban areas is likely to grow from the current 55pc to 68pc by 2050. A close analysis of the global trend of urbanisation reveals that people from low and middle-income countries seem to have more penchant for migration to cities. Pakistan is amongst the most urbanised countries in the world. The movement from rural to urban areas is also rapid in Pakistan. If the ratio of urban and rural populations is compared, in 1955, only one per cent of the country’s population lived in cities, which rose to 35 per cent in 2020. Going by the current rate of influx, it is estimated that the ratio of the population of urban and rural areas will be equal by 2055. The establishment of a robust local government system is crucial for achieving urban sustainability. Urbanisation is both an opportunity and a challenge for Pakistan. The urban centres are the engines of economic growth and prosperity as cities generate 55 per cent of the country’s GDP. Karachi alone chips in 12 to 15 per cent of federal tax revenue. However, these fast-growing cities also pose threats to humans and the environment. The current urbanisation pattern lacks sustainability as it has not only overburdened an already creaking urban infrastructure but also spawned a host of environmental issues. It has resulted in pollution of air, water and land, besides accelerating deforestation and climate change. In winter, for many years now, thick fog descends upon Lahore due to high levels of pollution and poor air quality in the city, created by increasing vehicular and industrial emissions. Similarly, in the coastal city of Karachi, every summer now comes with extended heat waves due to climate change induced by unplanned urbanisation. Seven years ago, in May and June 2015, Karachi was swept by an extended spell of high heat; killing over 1200 people. Apart from environmental degradation, land development schemes in the name of new housing societies to meet the housing needs are rapidly eating up agricultural lands and thereby jeopardising the food security of the country. According to the Kissan Board Pakistan, a non-governmental agricultural advisory and research organisation, housing schemes have so far devoured 20 to 30 per cent of the fertile land in Punjab. In Lahore alone, 70 per cent of agricultural land has been converted into gated communities. The consequences of this steep reduction in acreage are already palpable in the form of a never-ending wheat crisis in the country. Pakistan, despite being an agrarian country, has to import the staple to meet domestic needs almost every year. Mass migration has also overburdened the infrastructure. Our existing infrastructure is unable to cater to a large population thronging to cities. As a result, almost every city in the country faces mammoth problems related to waste management, sanitation and sewerage. It is common for our cities to always have leaking and overflowing gutters; making the streets flow rivers of sewerage water. Similarly, waste generation has also increased with the population influx and, presently, Lahore alone generates around 5,600 tonnes of waste daily. This situation is alarming and shows that the current pattern of urbanisation belies sustainability. Therefore, there is a dire need to focus on the sustainability of urban areas. Towards this end, the first thing, which needs to be done, is the complete overhauling of the current regulatory regime, for not only corruption is rampant in urban development regulatory authorities, but also these are inefficient to the core. To improve the efficiency of regulatory institutions, the practice to place these authorities under bureaucrats needs to be done away forthwith. Competent and professional individuals with experience in urban development need to be hired to run the business of these regulatory authorities. The establishment of a robust local government system is also crucial for achieving urban sustainability as locally elected people can better understand and resolve issues pertaining to basic facilities like clean drinking water, sanitation and sewerage. Sustainable urbanisation is a pertinent need for us because the goal of sustainable development will remain elusive without it. It will also help the country honour global commitments of sustainable development made under the banner of Sustainable Development Goals (SDGs) as cities were given a sustainable development goal all of their own: Sustainable Development Goal 11: Make cities and human settlements inclusive, safe, resilient and sustainable. SDG 11 is also closely linked and connected to SDG 8, that is, promoting sustained, inclusive and sustainable economic growth, full and productive employment and decent work for all; SDG 3, to ensure health and well-being for all and; SDG 2, to end hunger. Therefore, it is high time to stop treading on a path that has led us to economic stagnation and environmental destruction. Sustainable urbanisation needs to be institutionalised if we want to achieve sustainable development. Sustainable development will remain an elusive pursuit without achieving sustainable urbanisation. The writer is a columnist from Chiniot.