Article of the Month - 
	  June 2010
     | 
   
 
  	    Climate Change and Sustainable Cities: Major Challenges 
		Facing
		Cities and Urban Settlements in the Coming Decades
		Dr. Mohamed EL-SIOUFI, Ph.D., Head, Shelter Branch,
		 
		United Nations Human Settlements Programme, UN-HABITAT
		
		
		 
		This article in .pdf-format (pdf, 
		190 kB) 
		
		1) This paper has been presented as a keynote 
		presentation at the XXIV FIG Congress in Sydney 11-16 April 2010 in the 
		plenary session on The Big Challenges. Mohamed El Sioufi, Ph.D., is head 
		of the Shelter Branch at the United Nations Human Settlements Programme, 
		UN-HABITAT.
		
		Handouts of this presentation as a .pdf file. 
		1. RAPID URBANISATION 
		Urban areas occupy only 2.8% of the earth’s surface yet as of 2008 
		more than 50% of the world’s population inhabits urban areas. Rapid 
		urbanization is occurring largely in developing countries where a 
		massive demographic shift has enormous implications in terms of poverty, 
		natural resources and the environment.  
		The ‘State of the World Cities Report’ published by UN-HABITAT in 
		2008 projects an average growth of 5 million new urban residents per 
		month in the developing world. In the coming decades, the developing 
		countries will be responsible for 95% of the world’s urban population 
		growth.  
		Levels of urbanization are expected to rise, with the least urbanized 
		regions of Asia and Africa transforming from largely rural societies to 
		predominantly urban regions during the course of this century. By 2050, 
		the urban population of the developing world will be 5.3 billion; Asia 
		alone will host 63% of the world’s urban population, or 3.3 billion 
		people.  
		Population growth and economic development cause drastic changes in 
		land use in many parts of the world and institutional arrangements need 
		serious reforming to ensure sustainable use of the increasingly scarce 
		land resources. 
		This paper will address the issues of climate change and sustainable 
		cities through an international perspective and scientific conceptual 
		framework followed by cities responses to mitigation and adaptation to 
		climate change. The paper will conclude with priority tools identified 
		by the Global Land Tool Network that are needed at country and city 
		level to address climate change challenges. 
		The ecological interaction of cities and their hinterlands is a 
		recurring theme. Rapid urbanization and climate change have given it new 
		impetus and sense of urgency. In 1976, the Habitat conference identified 
		“urban expansion” as a universal development challenge. At the Rio 
		Summit in 1992, the concept of “sustainable human settlements” was 
		introduced. At the Habitat II conference in 1996, the Habitat Agenda 
		highlighted the need for new approaches to planning and managing rapid 
		urban growth thus advancing the notion of “sustainable urbanization”.
		 
		The world has come a long way on the debate and discourse of these 
		issues. But the challenges are complex and daunting, and require 
		continuous engagement and effort at all levels. The climate change 
		phenomenon is making the issue of sustainable urbanization a matter of 
		urgency.  
		Climate change is now recognized as one of the most pressing global 
		issues of our planet. It is no coincidence that global climate change 
		has become a leading international development issue at the same time as 
		the world has become urbanized. The way we plan, manage, operate and 
		consume energy in our cities will have a critical role in our quest to 
		reverse climate change and its impact.  
		2. CONCEPTUAL FRAMEWORK 
		Recently, the Global land Tool Network (GLTN, UN-HABITAT) undertook a 
		study on “Land, Environment and Climate Change: Challenges, Responses 
		and Tools”. The study builds on existing UN-HABITAT work; various 
		researches undertaken in the areas of land, environmental and climate 
		change; and through an e-discussion in 2009. It uses the Driving 
		Force-Pressure-State-Impact-Response (DFPSIR) framework as a basic 
		element of the conceptual framework.  
		It is important to understand the causes behind environmental 
		degradation in order to identify suitable responses. The DFPSIR 
		framework can serve as a simple interdisciplinary starting point. It 
		should then be broadened to capture essential elements of the 
		functioning of socio-environmental systems where institutions guide 
		resource utilization and protect and enhance human welfare. Property 
		rights are core determinants for how land resources are utilized and 
		their welfare effects are distributed. Similarly, the degree of market 
		development for natural resources as inputs in production and as 
		essential elements of livelihoods and safety nets for current and future 
		generations determine the need for complementary non-market institutions 
		and regulations where markets do not work properly.  
		 
		  
		Figure 1: Driving 
		Force-Pressure-State-Impact-Response (DFPSIR) conceptual framework 
		There are five components of the DFPSIR framework: 
		
			- Driving Forces are underlying in form of population 
			growth, technology and changes, institutional (political, market, 
			cultural, social), structures, and changes. Land laws and markets 
			affect land resources through how they impact on land management. 
			There are typically nested interactions among these driving forces.
 
			  
			- Pressures from the driving forces have direct impacts on 
			the environment. These include forest clearing for agricultural 
			production, city growth on agricultural land, or pollution of land, 
			water and air from industrial, and other human activities. Pressures 
			emerge from the incentive structures created by the driving forces.
 
			  
			- The State of the Environment can be captured by assessing 
			the stock of natural resources, changes in them or environmental 
			quality indicators like, erosion levels, nutrient stocks, soil 
			quality, pollution levels, changes in areas or quantities of carbon, 
			and loss of species or habitats. Global warming due to GHG emissions 
			causes changes in air and water temperatures, sea level rise and 
			severity of storms, floods, and droughts.
 
			  
			- Human Impacts of the changes in the environment are 
			measured through a range of indicators, like poverty status, food 
			security or other measures of vulnerability, access to land and 
			resources, tenure security, market access, access to shelter and 
			other basic human needs, access to safety nets, and the degree of 
			empowerment or political influence. At aggregate level these are 
			related to the Millennium Development Goals.
 
			  
			- Responses include responses at local, national and 
			international levels. They can address the Driving Forces, the 
			Pressures, the Environment or Human Well-being. The time perspective 
			may also vary from short- to long-term. 
 
		 
		Urban areas also have several of the same types of land-related 
		environmental problems with soil, water and air pollution as the most 
		severe urban problems in many developing countries. The severity of 
		these land-related environmental problems varies greatly across 
		locations and so does the vulnerability of the people living in the 
		different locations to the effects of these environmental problems. The 
		severity of the effects can also be delayed till certain threshold 
		levels of degradation or accumulation have been passed and may therefore 
		be ignored or underestimated by current populations while future 
		generations will be badly affected. This is particularly the case for 
		global warming where those who have caused the problem are more able to 
		protect themselves than those who are most severely affected by climate 
		shocks and sea level rise due to climate change. 
		3. MAIN ENVIRONMENTAL CHALLENGES RELATED TO LAND 
		The main environmental challenges related to land identified in the 
		recent study by GLTN/UN-HABITAT include: 
		
			
				Unequal land distribution
					- Geographical poverty-environment traps.
 
					- Increasing land fragmentation in densely populated 
					areas.
 
					- Unequal land distribution, land degradation and 
					inefficient land use
 
					- Unsustainable management including increased activity in 
					land rental markets and short-term strategies on rented 
					land. 
 
					- Threat by elite capture undermining land reforms.
 
				 
				International efforts are important to enhance the 
				transparency and accountability in situations where the poor 
				loose out.   | 
				
				 
				  
				 60% of Nairobi’s population lives on 5% of the city’s area   | 
			 
		 
		Tenure 
		
			- Tenure insecurity in relation to urban expansion 
 
			- Tenure insecurity for poor slum dwellers in developing countries
 
			- Tenure insecurity undermining investment and leading to 
			environmental mismanagement in urban and rural areas.
 
			- Threats against flexible tenure systems in pastoral and 
			agro-pastoral areas
 
			- Increasing pressures on customary tenure systems that are in 
			need of revisions.
 
		 
		Only 30% of plots are registered in developing countries and 2-3% of 
		the land is owned by women in Sub-Saharan Africa. The continuum of land 
		rights proposed by the GLTN is an important milestone in addressing 
		tenure security issues.  
		
		  
		Figure 2 - Continuum of land tenure rights 
		 
		Land use 
		
			- Encroachment of agriculture in particularly vulnerable and 
			valuable habitats.
 
			- Deforestation and forest degradation leading to carbon 
			emissions, loss of biodiversity and mud slides.
 
			- Environmental damage in “frontier” areas for new energy sources
 
			- Sharp increases in demands for land for food and bio-fuel 
			production displacing the poor.
 
		 
		Seventy-five percent of commercial energy is consumed in urban and 
		peri-urban areas. In addition, 80% of all waste is generated from our 
		cities and up to 60% of Greenhouse Gas Emissions which cause global 
		climate change emanate from cities.  
		 
		Recent large-scale land deals in Africa and Asia in response to rising 
		biofuel demand and resulting food price increases is an area where 
		international organizations can help poor countries and local people in 
		the negotiations to develop contracts that protect their interests. 
		Establishing better standards for transparency and accountability and 
		increased international pressures and support to implement such 
		standards will be important to reduce levels of corruption and elite 
		capture.  
		Climate change 
		
			- Increasing threats in coastal areas due to sea water rise and 
			severe weather risk. 
 
			- Increasing threats to human settlements in coastal areas and 
			islands
 
			- Increased probability of droughts and erratic rainfall due to 
			climate change
 
		 
		There have been recently warnings that the sea level is rising twice 
		as fast as was forecasted, threatening hundreds of millions of people 
		living in deltas, low-lying areas and small island states. But the 
		threat of sea-level rise to cities is only one piece of the puzzle. More 
		extreme weather patterns such as intense storms are another. Tropical 
		cyclones and storms, in the past two years alone, have affected some 120 
		million people around the world, mostly in developing and least 
		developed countries. Indeed, in some parts of the world, inland flooding 
		is occurring more often and on a more intense basis.  
		We are witnessing more frequent flooding and drought in the same 
		year, causing heavy impact on food security, energy and water supply. 
		This is practically daily occurrence for many of the world’s less 
		fortunate people who live in life-threatening slums. For them, the 
		climate is already out of control and, perhaps equally important, out of 
		comprehension.  
		We are witnessing more frequent flooding and drought in the same 
		year, causing heavy impact on food security, energy and water supply. 
		This is practically daily occurrence for many of the world’s less 
		fortunate people who live in life-threatening slums. For them, the 
		climate is already out of control and, perhaps equally important, out of 
		comprehension. 
		The impacts of climate change will be felt strongly in the years to 
		come. If sea levels rise by just one meter, many major coastal cities 
		will be under threat: Buenos Aires, Rio de Janeiro, Los Angeles, New 
		York, Lagos, Alexandria, Egypt, Mumbai, Kolkata, Dhaka, Shanghai, 
		Osaka-Kobe and Tokyo, just to mention some mega cities that are under 
		imminent threat. 
		The many smaller coastal cities, especially those in developing 
		countries and those of small island nations will suffer most due to 
		their limited adaptation options. More and more people are drawn to the 
		urban magnet. In many parts of the world, climate refugees from rural 
		areas that have been hit by drought or flooding aggravate the migration 
		to cities. Those parts of the population who already suffer from poor 
		health conditions, unemployment or social exclusion are rendered more 
		vulnerable to the effects of climate change and tend to migrate to 
		cities within or outside their countries. The UN predicts that there 
		will be millions of environmental migrants by 2020, and climate change 
		is one of the major drivers. 
		Therefore, there is no doubt that climate change exacerbates existing 
		social, economic and environmental problems, while bringing on new 
		challenges. The most affected today, and in future, will be the world’s 
		urban poor – and chief among them, the estimated 1 billion slum 
		dwellers.  
		Our studies have identified important research gaps and key research 
		questions related to land, environment and climate change challenges, 
		seeking to explore ways to empower all who are working in these areas to 
		overcome them. 
		4. THE ROLE OF CITIES IN MITIGATION 
		It is crucial to recognize that cities and urban residents are not 
		just victims of climate change but also as part of the problem. If 
		cities are part of the problem, that means they must also be part of any 
		solution.  
		Mitigation measures are urgently required. However, and to date, the 
		measures envisaged globally and nationally have yet to be accompanied by 
		concerted measures at the city and local levels. While we fine-tune 
		carbon trading instruments, we need to take immediate actions to make 
		our cities more sustainable by revisiting our land-use plans, our 
		transport modalities, and our building designs. There is a unique 
		opportunity to bridge our global efforts in emissions control with local 
		efforts to improve the quality of life and the productivity of our 
		cities. Our cities are, after all, the driving force of our economies, 
		and what better measures can be take than to reduce traffic congestion, 
		improve air and water quality, and reduce our ecological footprint.  
		In this regard, urban density is a key factor. A recent survey 
		indicated that in New York City, per capita greenhouse gas emissions are 
		among the lowest in the United States. This is because less energy is 
		needed to heat, light, cool and fuel buildings in this compact city 
		where more than 70 percent of the population commutes by public transit.
		 
		The city of Atlanta in the USA and Barcelona Spain, for example, both 
		have a population of about 2.5 million. Atlanta currently occupies an 
		area of 4200 sq km whereas Barcelona occupies only 162 sq km. Atlanta 
		consumes much more energy due to its urban form and higher per capita 
		energy consumption.  
		Climate change mitigation can be a good business opportunity. Clean, 
		low-carbon infrastructure investments, retrofitting of buildings, the 
		renewal of our transport systems are opportunities for ‘green’ 
		investments. According to the estimates of international associations of 
		local governments, already 2800 cities have committed themselves to 
		reducing their annual GHG emissions, or meeting other targets for more 
		sustainable urban development. While most of these cities are in the 
		Global North, others in the South are taking specific measures taken to 
		reduce urban emissions include construction of an urban wastewater 
		methane gas capture project, undertaken in Santa Cruz (Bolivia); energy 
		efficiency audits of municipal buildings by Cape Town (South Africa); 
		and development of rapid transport systems and other measures designed 
		to reduce the use of single occupancy vehicles in a number of cities. 
		5. THE ROLE OF CITIES IN ADAPTATION 
		At the same time, there is rising consensus that cities must take 
		immediate adaptation measures to reduce vulnerability. Here again, we 
		have yet to recognize the need to plan our cities and settlements to 
		prevent loss and destruction of lives and properties. The time to act is 
		now and the place to act is in the cities of the world. Cities not only 
		have to take preventative measure, they must plan to offset the worst. 
		In this respect, there is no doubt that local authorities will be the 
		front line actors in finding local answers to these global challenges. 
		There is no one-size fit all solutions and each local authority will 
		have to assess its own risks and vulnerability and plan accordingly. 
		It is obvious that local authorities, especially secondary cities in 
		developing countries that are growing the fastest, will be the most 
		severely tested by these challenges. These cities, despite their rapid 
		growth, contribute a minimal share to global greenhouse gas emissions. 
		Yet they are the cities that are most at risk in terms of suffering the 
		impacts of climate change.  
		Cities can adapt to the impacts of climate change via effective urban 
		management. Planning and land use controls can prevent people from 
		building in zones at risk of flooding and landslides (e.g., restrictions 
		on building within 50 year floodplains in South Africa). Guidelines and 
		regulations, such as a decision issued by the Thua Thien Hue provincial 
		authorities in Vietnam to encourage cyclone-resistant building 
		practices, can increase resiliency and make economic sense.  
		However, we also know that many cities in Least Developed Countries 
		do not have much urban infrastructure assets that can be adapted. 
		Therefore, adaptation can not be disconnected from the need for local 
		development. Both adaptation and mitigation strategies in urban areas 
		require new and improved infrastructure and basic services. This 
		provides cities in developed and developing countries with unique 
		opportunities to redress existing deficiencies in housing, urban 
		infrastructure and services and to create jobs and a new opportunities 
		to stimulate the urban economy. 
		The resolve with which the cities stuck to their climate action 
		despite the current economic crisis was very reassuring. They remain 
		convinced that climate change action makes economic sense. For example, 
		increased energy efficiency is not only good for the climate but also 
		makes sense for a city's budget. As former president Bill Clinton said: 
		"For every 1 billion US dollars invested in the retrofitting of houses 
		to increase their energy efficiency, 6000 jobs are created. This is six 
		times bigger in impact than in average public investments. And what is 
		more: savings in energy will pay back for this investment in just over 7 
		years". 
		6. THE CITIES IN CLIMATE CHANGE INITIATIVE 
		The technologies are there. The solutions exist. They range from 
		water harvesting to solar energy, and from affordable mass transit to 
		bio-fuel production. But turning the huge unmet needs into market demand 
		requires the right mix of political will and commitment, well-founded 
		policies and strategies, an enabling business environment and capacity 
		development.  
		It is in this context and in response to these challenges that 
		UN-Habitat has launched the Cities in Climate Change Initiative. 
		This initiative is supporting the efforts of government agencies and 
		local authorities in adopting more holistic and participatory approaches 
		to urban environmental planning and management, and the harnessing of 
		ecologically sound technologies. The Initiative uses adaptation as a 
		starting point to engage people, their local authorities and the private 
		sector in risk abatement action. 
		This starting point leads to mitigation. Here, the Cities in Climate 
		Change Initiative argues that the measures required for adaptation and 
		mitigation are the same, namely better land use planning, better urban 
		management, more participatory governance focusing on more resilient 
		housing and smarter infrastructure and basic services.  
		The Cities in Climate Change Initiative has started off last year in 
		four pilot countries of Mozambique, Uganda, Philippines and Ecuador. It 
		has since expanded to cities in Burkina Faso, Kenya, Namibia, Rwanda and 
		Senegal. We are currently starting assessments in several Asian 
		countries and we are fundraising to respond to the strong interest from 
		Small Island Developing States in the Pacific and the Caribbean.  
		UN-HABITAT provides capacity building support and helps ensure the 
		sharing and transfer of knowledge and lessons learned from experience. 
		We have received new mandates by our Governing Council to support cities 
		in addressing Climate Change more forcefully.  
		In partnership with the Cities Alliance, the World Bank and the 
		United Nations Environment Programme, UN-Habitat is refining methods to 
		support cities to measure their climate footprint and assess their 
		climate change vulnerability. These metrics should assist cities in 
		accessing climate related finance. 
		7. KEY PRIORITIES AND PROMISING LAND TOOLS OF THE GLOBAL LAND TOOL 
		NETWORK (GLTN) 
		To focus more on land and climate change issues, UN-HABITAT has 
		participated in the setting up of a Global Land Tool Network (GLTN) and 
		assuming the role of technical secretariat for the Network. GLTN 
		includes an international partnership of key actors on land. Many of you 
		are already members in this network through your professional 
		organizations including FIG, UN sister agencies such as FAO. UN-HABITAT 
		are among other prominent actors including development IFIs such as the 
		WB; Donors (Sida and Norway); technical agencies (GTZ); INGOs (the 
		Huairou Commission, SDI, Hajimani); academia (Harvard University, 
		University of East London); and others. The rich variety of 
		complementing partners in the network illustrate a maturity and 
		realization of all of us acknowledging the need to cross our specialized 
		boundaries in a quest to better define and understand the issues on the 
		ground as well as to jointly agree on priority gaps to be addressed to 
		better guide us all in our work.  
		The GLTN together with our other programmes focus on issues related 
		to cities and urban areas. Issues identified include land and governance 
		with FAO; gender valuation with the Huairou Commission and FIG; Social 
		Tenure Domain Model (STDM) with FIG, ITC and WB; Land Tenure and Natural 
		Resource Governance in Africa with US-Aid and development partners in 
		Kenya; Development of Natural Disaster Guidelines on Land - Land issues 
		with humanitarian partners; and Land, Environment and Climate Change: 
		Challenges, Responses and Tools- together with a Norwegian Research 
		Institution. 
		GLTN has identified key priority areas where land stakeholders could 
		add value as well as develop land tools that could be used to enhance 
		sustainable land management and human well-being. The Global Land Tool 
		Network (GLTN) has identified key priority and promising land tools: 
		
			- Land tenure reform: Land reform requires thorough 
			analysis of each country’s specific situation and must be widely 
			agreed upon by various interest groups in the land sector. Taxing of 
			land values was identified as a crucial instrument to mobilize idle 
			land and make it available to more efficient and needy users. 
			However, even though introducing such a tax system seems an optimal 
			solution, there can be strong political constraints as it is likely 
			to be opposed by landowners and the elite. The best strategy would 
			be to look at the range of land relation taxation solutions. In a 
			broader urban perspective on policies and tools there are many 
			examples of innovative, pragmatic and cost effective policies to 
			improve access, land tenure security and property rights for the 
			urban poor. Information on these is already in the public domain.
 
			  
			- Land rights records and registration: low-cost land 
			registration and certification
 
			  
			- Land use planning: low-cost, participatory land use 
			planning and mapping
 
			  
			- Regulation of land markets to enhance sustainable land use:
			land market regulations have been and are still common in many 
			countries. Concerns about environmental consequences may call for 
			regulation of land rental markets, [for example when] rental 
			contracts are of short duration. Short-duration contracts can 
			suppress investment incentives, leading to non-sustainable land 
			management practices.
 
			  
			- Land management, administration and information: 
			accessible to all in a transparent way with focus on climate change 
			mitigation and adaptation issues.
 
			  
			- Slum rehabilitation and resettlement including provision 
			of tenure security in urban slums. Forced displacement of slum 
			dwellers without adequate alternatives, resettlement options or 
			compensations is the recipe for further social, economic and 
			environment losses. Displaced urban dwellers tend to resettle on 
			more marginal and vulnerable sites. Their source of and access to 
			livelihoods are often severely undermined. Upgrading and 
			reconstructing degraded urban environments such as slums is crucial 
			in combination with providing good alternative resettlement areas. 
			Development of low-cost and incremental approaches is key due to the 
			budgetary restrictions and the large and growing number of slum 
			dwellers. More importantly, preventing and containing slum growth, 
			especially on vulnerable landscapes would provide long-term gains.
 
			  
			- Land law, regulation and enforcement: land laws are 
			crucial tools for enhancing more sustainable land use. However, land 
			laws can also be ‘toothless’ unless enforced. Development of 
			improved land laws needs parallel dissemination of information about 
			the content of the laws in the land administration system as well as 
			other parts of national and local administrations that have an 
			influence on land use (e.g. Ministries and Departments of energy, 
			forestry, agriculture, transportation, and planning). Furthermore, 
			the public and land users themselves need to be informed. 
			Universities and relevant education programs, research institutions, 
			land user organizations, NGOs, and large private enterprises are all 
			organizations that should help disseminate such information. In 
			developing countries with poor information access and low levels of 
			literacy, it takes years before the contents of new land laws reach 
			land users, if ever, before new laws are passed. The language of the 
			laws is hard to understand for people with limited formal education. 
			The new laws have to be translated into local languages before being 
			disseminated. Popular formats conveying the essence of the law may 
			be more suitable for dissemination than direct translations.
 
			  
			- Payment for environmental services: Design of Payment for 
			Environmental Service (PES) schemes as a way to create markets for 
			resources that are threatened by degradation and consequently also 
			for their maintenance and improvement, can become important policy 
			tools in the future. However, this requires innovative designs and 
			careful pilot testing before they are scaled up. The poverty of land 
			users and the poverty reduction effects of PES schemes will be 
			important design considerations. 
 
			  
			- Payment for resource dividends: A progressive land and 
			resource dividend system, if introduced, may mobilize idle land from 
			large land and resource owners for more efficient use in countries 
			with unequal land and resource distribution. However, to succeed it 
			is crucial to frame such a dividend system in a palatable way to 
			build sufficient public support for its introduction. GLTN can take 
			a leading role in piloting and promoting the use and scaling up of 
			such land tools. 
 
			  
			- Participatory public works programs / productive safety nets 
			and as means to invest in environmental conservation: 
			rehabilitation and conservation of community facilities (e.g., 
			roads, drainage networks, waste disposal systems, etc) can be 
			undertaken using food for work or cash for work program. These can 
			not only help healthy and better serviced neighborhoods, but also 
			create opportunities for gainful employment.
 
			  
			- Collective action for enhancement of environmental services: 
			[Formal and public sector based] Law, regulations and law 
			enforcement mechanisms are not enough in most countries. More 
			important is consolidated and coordinated action for ensuring 
			quality and standard of urban environmental services. A strong urban 
			environment monitoring agency is essential. An independent, powerful 
			and capable urban environment protection force can be established.
 
			  
			- Integrated rural and urban development: rural development 
			and urban development are closely linked through migration, flow of 
			resources, economic empowerment, commodities and services. The 
			problem of expanding slums cannot therefore be seen as exclusively 
			an urban problem as they are largely filled by immigrants from rural 
			areas. Slums may be compared to a leaking boat: new migrants flow in 
			as earlier slum dwellers are rehabilitated or moved elsewhere. The 
			problem can only be tackled at a broader scale requiring both rural 
			and urban development.
 
			  
			- Providing tenure security and slum rehabilitation: 
			Increasing populations in urban areas makes is making it difficult 
			to provide shelter and security of tenure for urban dwellers, 
			especially for the poor and other vulnerable groups. Poorly managed 
			rapid urban population growth in developing countries often leads to 
			a rapid growth of slums and increasing environmental health 
			problems. Severe environmental degradation is one of the common 
			features in developing country cities. Insecure tenure in informal 
			(often illegal) settlements makes it also unattractive for poor 
			households to invest in improving their temporary housing 
			arrangements and adopt sustainable environmental practices. 
			Conventional titling programs in such urban areas have often failed 
			to solve many of the basic problems and may have forced poor slum 
			dwellers to relocate in environmentally risk-prone and hazardous 
			locations, further exposing them to natural disasters. It appears 
			that legal pluralism is preferable, combining ownership-based and 
			rights-based approaches while taking into account the needs of the 
			poor, their financial constraints and the limited capacity of urban 
			land administrations. This also implies a continuum of land rights, 
			including freehold tenure, leasing arrangements, public ownership, 
			group tenure, and informal tenure arrangements (Payne et al., 2008).
 
			Many alternative approaches to titling are being tested. Examples of 
			these are:
				- Provision of temporary occupational licenses, group 
				ownership by community land trusts, and company or co-operative 
				ownership and subdivision of land to members in Kenya.
 
				- Simple documentation of informal settlements in Egypt.
 
				- Cooperative housing in South Africa.
 
				- Provision of Certificate of Rights to use and develop state 
				owned land in Botswana.
 
				- Temporary land rental in Thailand.
 
				- Recognition of illegal settlements in Indonesia. 
 
				- Relocation of illegal settlers by providing land titles on 
				nearby land in Cambodia.
 
				- Provision of registered leaseholds in squatter settlements 
				in Brazil.
 
				- Formal landlord-tenant property contracts in Bolivia (Dey et 
				al., 2006). 
 
				  
			 
			 
			- Rescue plans for areas threatened by sea level rise and storm 
			floods: Particularly vulnerable areas with large poor 
			populations that are unable to protect themselves against sea level 
			rise and storm floods need international and national support. 
			Whether it is most appropriate to invest to protect their current 
			livelihoods or to organize resettlement in safer locations depend on 
			the relative costs of the alternative solutions. This will depend on 
			the expected size of the necessary protective barriers that have to 
			be built for protection, the distance to available alternative 
			locations for resettlement, the size of the population, costs of 
			building suitable resettlements, etc. A long-term plan for gradual 
			resettlement is preferable to an after-disaster resettlement. The 
			latter will be more chaotic and will involve severe losses. In 
			relation to such planned gradual resettlement, there are important 
			property rights issues to be resolved. The property value of the 
			properties lost may fall significantly but there is also a risk that 
			evacuated areas and houses are likely to be occupied by 
			opportunistic settlers. …. The financial costs will be very high and 
			clearly beyond what poor affected populations, communities, cities 
			and countries can afford. Since the cause of the problem is also 
			global, it is necessary to develop an international system for 
			funding of such large-scale operations. This is an area where UN 
			agencies could play an important role. Support will also be needed 
			for building professional capacity to tackle such large resettlement 
			schemes. Organizing a network of professional staff from threatened 
			countries and cities is an important first step.
 
		 
		8. CONCLUSION 
		To meet the Millennium Development Goal (MDG) goal 7, target 11 to 
		have achieved a significant improvement in the lives of at least 100 
		million slum dwellers by 2020, is a central concern of UN-HABITAT. This 
		target must be seen in connection with the factors causing rapid inflow 
		of new migrants as well as the fact that some of these areas are in 
		coastal zones that are threatened by sea water rise and weather risk. 
		Rural development and land reforms in rural areas can contribute to 
		reduce the inflow of people and therefore be an important part of the 
		solution. Similarly, rural development can be seen as one of the means 
		of alleviating poverty and increasing incomes for both rural and urban 
		people. At the same time it must be an international responsibility, 
		particularly for the countries that have contributed most to carbon 
		emissions to provide funds for adequate compensation and alternative 
		livelihoods for the people that are threatened by sea water rise, 
		drought or flooding due to climate change. UN agencies can continue to 
		take a leading role in the planning of strategies to tackle this 
		problem. 
		The world is at a cross roads; the fight to combat poverty and 
		climate change is to be won or lost in our cities. Cities, as much as 
		they embody the challenges also offer the solutions. The hundreds of 
		communities and cities whom we recognize for their good practices 
		symbolize this potential. The challenge is that many cities in the 
		developing world are not endowed with the capacity to harness and 
		mobilize knowledge.  
		A sustainable city must be a learning city which is continuously 
		exploring and innovating, sharing and networking. Universities and 
		knowledge centres have much to contribute to this endeavour. 
		Universities bring their knowledge and expertise, whilst cities offer 
		them unique opportunities to link research and education with policy and 
		practice. Recognizing this potential, UN-HABITAT, has recently launched 
		the World Urban Campaign to harness and channel knowledge, expertise and 
		experience in support of sustainable urbanisation.  
		Finally, the challenges facing cities with regard to climate change 
		are numerous and daunting, and no entity, public or private, 
		governmental or non-governmental, academic or practitioner, can face 
		these challenges alone. All those who are committed to turning ideas 
		into action are invited to join UN-HABITAT and its partners in the quest 
		for more sustainable urban development.  
		
		  
		BIOGRAPHY 
		Dr. Mohamed El-Sioufi is the Head of the Shelter Branch 
		in UN-HABITAT. He has 32 years of experience in architecture, housing 
		and urban planning. His experience bridges professional practice, 
		academia, research, training and technical advice. He has worked for 
		UN-HABITAT since 1995 in training and capacity building, policy and 
		technical cooperation and the development of global norms and 
		guidelines. His experience in human settlement spans a variety of 
		specialized fields including capacity building in sustainable urban 
		development including historic cores, housing policy and strategies, 
		slum upgrading, climate change mitigation through sustainable building 
		materials and construction technologies, post disaster rehabilitation, 
		environmental planning and management. 
		CONTACT 
		Dr. Mohamed El-Sioufi 
		Head, Shelter Branch 
		UN-HABITAT 
		00100 Nairobi 
		KENYA 
		
		Mohamed.El-Sioufi@unhabitat.org 
		 
		
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