Future Megacities

Future Megacities - Megastädte von morgen

Cities, particularly emerging megacities in developing and newly industrializing countries, play a significant role in climate change. They are both massive contributors of greenhouse gases as well as sensitive victims to its consequences. Therefore, they are taking action for climate change mitigation and adaptation as well as energy and resource efficiency.

Future Megacities - Solid Waste Management in Addis Ababa, Ethiopia

Solid Waste Management in Addis Ababa, Ethiopia 1. Challenge • Rapidly growing cities are generating increasing volumes of waste • The effectiveness of solid waste collection and disposal systems cannot keep pace • The recycling sector is underdeveloped • Waste valorisation can mitigate emissions and contribute to environmental protection and sustainable development 2. Objective To generate income through recycling valuable waste fractions and using organic waste, thereby reducing greenhouse gases from dumpsites. 3. Solutions • Methodology for data collection on waste quantities and quality • Model-based strategic planning for sustainable solid waste management • Adapted occupational safety & health standards and solutions • Market studies and business guidelines for recycling products • Business improvement of a paper recycling manufactory • Implementation projects for separate collection at source, biogas facility, charcoal briquettes from organic wastes, composting, school biogas-latrine • Training modules for WEEE collection and dismantling • Closing material cycles for erosion prevention combined with energy crop production • Obstacle based transfer analysis methodology for technologies or methods

Future Megacities - Governance for Sustainability in Hyderabad, India

Governance for Sustainability in Hyderabad, India 1. Challenge • High rate of urban population growth • Escalating energy and resource consumption • Constantly increasing greenhouse gas emissions per capita • One third of the population lives below the poverty line and is suffering from food shortages and health problems • Climate change is predicted to lead to extreme weather events, mainly floods and droughts as well as increasing water scarcity • Weak institutional capacities for effective urban management 2. Objective To establish a sustainable development framework with priority on mitigation and adaptation strategies for climate change and energy efficiency through a change of governance structures and a modification of lifestyles. 3. Solutions • Climate Assessment Tool for Hyderabad (CATHY) • Strategic Transport Planning Tool • Street Food Safety Manual and onsite training for strengthening a climate friendly urban food supply system • Collective action for fuel transition among the urban poor • Cooperative and technical solutions in order to increase energy efficiency in irrigation • Solar powered schools • Education for sustainable lifestyles • Community Radio

Future Megacities - Water Management in Lima, Peru

Water Management in Lima, Peru 1. Challenge • Rapid population growth, in particular due to an influx of poorer people leading to informal settlements, lacking appropriate supplies of water, sanitation • Water supply mainly from seasonal rivers affected by climate change • Use of drinking water for park irrigation whilst untreated wastewaters are used for agriculture • Polarisation and conflicts between poor and rich districts regarding water supply • Lack of a systematic approach for the development of the water supply and wastewater system and its integration with urban planning 2. Objective To improve planning and management of the water and sanitation system through informed and participatory decision making, focussing on climate change effects, sustainability and energy efficiency. 3. Solutions • Macro-modelling of the urban water system for informed discussions and decision making • Simulation of Lima’s future development, taking into account climate change effects on the water system for longterm planning • Round tables as a new form of governance in the water sector • Water pricing options and improvement of tariff structure • Integrated urban planning strategies and planning support • E-Academy for education and capacity building

Future Megacities - Transportation Management in Hefei, China

Transportation Management in Hefei, China 1. Challenge • Dynamic growth of Chinese cities with increasing levels of mobility and rapid motorisation • Changing lifestyles demanding individual transportation and a growing number of cars • Increasing fuel consumption leads to CO2 emissions and further negative impacts on the environment • The infrastructure network is incapable to cope with the rapid increase of private car ownership leading to traffic congestion • Insufficient traffic management system for dealing with growing complexities and greater demands for flexible control 2. Objective To reduce energy consumption and CO2 production of urban traffic in megacities through a sustainable comprehensive traffic control system. 3. Solutions • Intelligent traffic management based on traffic flow analysis with Floating Car Data • Development of models for the assessment of environmental impacts of traffic as a basis for informed decision-making and climate friendly transport planning strategies • “Traffic Management” and “Transport Planning” best practice guidelines and manuals • Finance options for sustainable transport • Strategic design proposal for walkable cities

Future Megacities - Energy and Climate Protection in Gauteng, South-Africa

Energy and Climate Protection in Gauteng, South Africa 1. Challenge • The Gauteng Province is the most densely populated urban area of South Africa with a striking lack of energy supply • High dependency on coal for energy production and consequently high CO2 emissions from the energy sector • Low levels of electricity costs contribute to high levels of energy consumption and low rates of efficiency • Low share of renewable energies due to the lack of a regulatory framework and incentives 2. Objective To demonstrate viable technologies for a sustainable regional energy system through a transdisciplinary, practice-oriented and integrated approach. 3. Solutions • TIMES GEECO – regional energy and emission model and training • EnerKey Advisor Tool – assessing energy performance of buildings • EnerKey Long Term Perspective Group – a governance think tank model • Transport Emission Inventory – informed mobility planning • Energy Technology Handbook – sustainable technologies for the future • CDM – emission trade evaluation tool • iEEECo – energy and cost efficient settlements • African Sustainable House – a holistic dwelling approach • EnerKey Detectives – education and solar panels in schools

Future Megacities - New Town Development in Tehran-Karaj Region, Iran

New Town Development in Tehran-Karaj Region, Iran 1. Challenge • The Tehran-Karaj region forms one of the fastest growing urban agglomerations in the Middle East • Demand for the construction of 1.5 million new housing units • The construction of new settlements dramatically raises the consumption of energy, commodities and resources • Lack of energy-efficient solutions in planning, urban design and architecture 2. Objective To elaborate energy-efficient architecture, urban design solutions and planning strategies for a sustainable and resilient new town development in semi-arid regions. 3. Solutions • Detailed Plan for a 35 ha large model area the “Shahre Javan Community” in Hasht- gerd New Town • New Quality Building with 16 housing units, inaugurated in July 2010 • Manual for a climate responsive and sustai- nable urban development • Manual for integrated building planning in semi-arid and arid regions • Conceptual designs for energy-efficient residential and commercial buildings • On-site vocational education and training for construction workers • Public transport concept • Waste water concept • Ecological assessment model • Implementation of environmental compensation areas

Future Megacities - Adaptation Planning in Ho-Chi-Minh City, Vietnam

Adaptation Planning in Ho Chi Minh City, Vietnam 1. Challenge • High urbanisation pressure due to economic liberalisation policies • Rapid growth of the urban population and dynamic spatial extension of the urbanised area into flood-prone and ecologically sensitive areas • The expansion of the coastal megacity is further increasing the high level of exposure to climate risks • High vulnerability to the impacts of climate change • Need for an increase of capacities for steering urban development processes 2. Objective To increase the resilience and adaptation capacities for reducing the vulnerability of natural and human systems to the adverse effects of climate change. 3. Solutions • Urban climate map and urban water balance modelling as a basis for planning decisions within the general land use plan and for deriving planning recommendations • Urban Design Guidebook as a tool for integrating climate change adaptation into planning and design decisions • Handbook for Green Housing for disseminating good practice in urban design and architecture • Handbook for Community-based Adaptation as a guide for building resilient communities through local action

Future Megacities - Resource Efficiency in Urumqi, China

Resource Efficiency in Urumqi, China 1. Challenge • Rapid growth of population and spatial extension in an ecologically sensitive environment due to rapid industrialisation • Harsh climatic conditions with very cold winters and hot summers • Cheap coal fired energy production pollutes the air to a dramatic extent • Modern production and consumption patterns are increasing and diversifying waste production • Growing demand of scarce water resources in a semi-arid environment 2. Objective To promote a more efficient use of scarce and polluting resources (energy, water, waste) in order to decrease the environmental impacts of urbanisation in a semi-arid climate. 3. Solutions • Construction of the first passive house in Western China • Extra low-energy renovation of existing buildings • Development of a Waste Management Software for enterprises in Midong Industrial Park, covering all kinds of waste • Hydrological analyses and modelling, advice on water information management for political decision-makers in Urumqi Region • Mass and energy flow analysis in the Chinese PVC industry • Capacity building for a soil moisture based measurement methodology (Ground Penetrating Radar) as a basis for modelling climate change

Future Megacities - Urban Agriculture in Casablanca, Morocco

Urban Agriculture in Casablanca, Morocco 1. Challenge • Rapid urban growth is reducing and fragmenting agricultural land within the city region • Conventional planning tends to neglect agriculture and open space as valuable resources and parts of the regional land use structure • Informal development further contributes to the fragmentation of land us patterns and the reduction of open space • Low awareness of the potential of urban agriculture for a productive green infra- structure and sustainable food supply 2. Objective To demonstrate the extent to which urban agriculture can make a contribution to resourceful and climate sensitive growth of urban agglomerations through qualied urban-rural relationships. 3. Solutions • Action Plan for integrating urban agriculture into the urban development process • Design solutions for multifunctional space systems • Models on climate, water balance, air quality and flooding as a basis for informed decision-making • Experimental plants for industrial waste water treatment and re-use • Concepts for peri-urban tourism • Approaches for a healthy food production • Urban agriculture as an integrated element in informal settlements • Awareness raising, capacity building and dissemination strategy

Future Megacities - The IGNIS Project

LiWa Projekt - Future Megacities

Im dem Video wird die im Zuge des Klimawandels in Lima auftretende Wasserproblematik beschrieben. In Beziehung dazu beschäftigt sich das Video mit den Beiträgen des LiWa-Projektes für das nachhaltige Management des Wassers und Abwassers in der Stadt.