100 Climate actions from cities in Asia and the Pacific

Page 101

Tamil Nadu, India

Tamil Nadu Invests in Climate-Resilient Infrastructure

3.4K tons of CO₂ EMISSIONS REDUCED every year Tamil Nadu

Inhabitants 72.15 million GDP per capita $2,862 Geographic area 130,058 km²

THE CHALLENGE Rapid urbanization has been accompanied by infrastructure deficits, polluted waterways, and increased vulnerability to droughts and urban floods.

Co-benefits

A huge infrastructure investment program, covering 10 cities in the state of Tamil Nadu, aims to implement climate-resilient water supply, sewerage, and drainage systems across the region. India’s southern state of Tamil Nadu wants to promote climate-resilient urban development, as the lack of piped water and sewerage networks serves to increase the vulnerability of residents to water-related climate change impacts. Efforts will center around improving access to water, sanitation, and wastewater disposal services across 10 cities, while also reducing pollution and CO₂ emissions. India’s first solar-powered sewage treatment plant will be installed in Coimbatore on a pilot basis, and connected with more than 2,800 km of new sewage collection pipelines. Wastewater reuse for industrial purposes will also be made possible by advanced treatment facilities and the flood resilience of the systems will be increased through improved drainage and the raising of critical infrastructure. Smart water management systems will also be installed, with 1,500 km of water supply distribution systems. Along with 40 new water storage reservoirs, this will provide residents with a reliable source of water, and the introduction of 110 district metered areas will reduce nonrevenue water loss in water-scarce regions. The program is funded through an ADB loan of $500 million, an Asian Clean Energy Fund grant of $2 million, a government counterpart financing of $766.4 million, and an ADB technical assistance grant of $1 million.

Health The absence of sewerage systems in project areas poses a major health risk, which improved infrastructure will help mitigate. Social The program will directly address water, sanitation, and drainage service gaps among disadvantaged and underserved communities, including in slums. Environmental Improved sanitation and wastewater management will reduce contamination and ensure that residents have access to a clean water supply.

88 100 CLIMATE ACTIONS FROM CITIES IN ASIA AND THE PACIFIC

Limited urban services. Less than half of the households in Tamil Nadu are being served by piped water and sewerage networks (photo by ADB).


Articles inside

Methodology

1min
page 145

Tackling Maldives’ Trash Island Malé, Maldives

11min
pages 135-144

Four Provincial Capitals, Three “Rs” of Recycling Darkhan, Altai, Baruun-Urt, and Arvaikheer, Mongolia

1min
page 133

Turning the Tide on Plastics Tangerang, Indonesia; General Trias, Philippines; Nakhon Pathom and Rayong, Thailand; and India

2min
page 132

A Fresh Approach to Food Waste in Ulaanbaatar Ulaanbaatar, Mongolia

1min
page 134

Confronting Khujand’s Landfill Challenges Khujand, Tajikistan

1min
page 131

Eco Village in Mongolia Replaces Coal with Sunshine for Heat Ulaanbaatar, Mongolia

2min
pages 128-130

A Helping Hand for Local Kyrgyz Efficiency Projects Bishkek, Kyrgyz Republic

1min
page 127

Retrofits Keep Heat In and Emissions Down Ulaanbaatar, Mongolia

1min
page 126

Choosing from the Climate Resilience Toolbox Xiangtan, PRC

1min
page 117

International Innovation Inspires Building Standards in Viet Nam Ho Chi Minh City, Viet Nam

1min
page 121

ADB Headquarters Goes for Gold Mandaluyong, Philippines

1min
page 125

Traditional Medicine Meets Low-Carbon Design Xiangtan, PRC

2min
pages 122-123

Reducing Emissions, Improving Air Quality Ulaanbaatar, Mongolia

2min
pages 118-120

Low-Carbon Housing for 35,000 Residents of Ulaanbaatar Ulaanbaatar, Mongolia

2min
page 124

Ulaanbaatar Makes Concrete Plans to Address Environmental Challenges Ulaanbaatar, Mongolia

1min
page 116

Xiangtan’s Public Procurement Approach Xiangtan, PRC

1min
page 115

Launching Emission Monitoring in Tajikistan Dushanbe, Tajikistan

1min
page 112

Peaking Emissions 8 Years Ahead of Schedule Wuhan, PRC

1min
page 114

Batumi’s Efficiency Action Plan Batumi, Georgia

1min
page 113

100 More Days of Clean Air in Chengdu Chengdu, PRC

1min
page 111

Dhaka Prepares for Reduced Freshwater Availability Dhaka, Bangladesh

1min
page 107

Bhutan Battles Rising Waters in the Himalayan Foothills Phuentsholing, Bhutan

2min
pages 108-110

Dushanbe Doubles Down on Water Security Dushanbe, Tajikistan

1min
page 106

Solving Kiribati’s Water Puzzle South Tarawa, Kiribati

1min
page 105

Tamil Nadu Invests in Climate-Resilient Infrastructure Tamil Nadu, India

2min
pages 101-102

A Fresh Approach to Water for a Future with Rising Tides Suva, Fiji

1min
page 104

Overcoming Water Scarcity in the South Pacific Honiara, Solomon Islands

1min
page 103

Putting Livability at the Center of Adaptation and Mitigation Yanji, PRC

1min
page 100

Climate Adaptation on the Shores of Southeast Asia’s Largest Lake Kampong Chhnang and Pursat, Cambodia

1min
page 97

Post-Coal Economies for Heilongjiang Hegang, Jixi, Qitaihe, and Shuangyashan, PRC

1min
page 99

“Art for Action” Inspires Younger Generation Ulaanbaatar, Mongolia

1min
page 94

Testing Low-Carbon Living in Jilin Jilin, PRC

1min
page 93

Efficient Stoves Protect Lives, Forests, and the Climate Kabul, Afghanistan

1min
page 91

Green Passport Campaign Urges Youth to Protect the Environment Ulaanbaatar, Mongolia

1min
page 92

Real-Time Urban Flood Forecasting and Warning System Shanghai, PRC

1min
page 86

Increasing Building Efficiency through Smart Monitoring Xiangtan, PRC

1min
page 85

Building a City’s Digital Backbone Xiangtan, PRC

1min
page 83

Nur-Sultan’s Trees Are Coming of Age Nur-Sultan, Kazakhstan

2min
pages 80-82

Energy Management System Drives Energy Efficiency Xiangtan, PRC

1min
page 84

Planting Trees on the Roof of the World Xining, PRC

3min
pages 78-79

A Green Wave of Reforestation Khyber Pakhtunkhwa, Pakistan

1min
page 77

Leveraging the Legacy of Tajikistan’s Trolleybuses Dushanbe, Tajikistan

1min
page 73

Daily Commute Takes New Heights Makati, Quezon City, and Pasay, Philippines

3min
pages 74-76

Samoa Shields Harbor against Climate Change Apia, Samoa

1min
page 72

Trolleybus Network Helps Curb Jinan’s Emissions Jinan, PRC

2min
page 71

Prioritizing Public Transport to Improve Public Health Manila-Clark Corridor, Philippines

1min
page 70

Pink and Yellow Lines Decongest and Decarbonize Bangkok, Thailand

1min
page 68

Mumbai Metro Moves the Masses Mumbai, India

1min
page 67

Saving Traffic, Time, and the Environment in Ha Noi Ha Noi, Viet Nam

1min
page 66

Improving Multimodal Transport in Xiangtan Xiangtan, PRC

1min
page 63

Green Light for the Red Line in Karachi Karachi, Pakistan

1min
page 59

Three Transport Initiatives Boost Livability and Cut Emissions Xiangtan, PRC

3min
pages 61-62

Gender-Inclusive Bus Corridor to Relax Congestion Peshawar, Pakistan

1min
page 60

Encouraging Public Transport through Metro Face-Lift Tbilisi, Georgia

1min
page 64

Block Heaters Blunt Idling Emissions Nur-Sultan, Kazakhstan

3min
pages 57-58

Expanding Public Transport to Cut Congestion Vientiane, Lao PDR

1min
page 56

Taxis to Help Tackle Air Pollution in Mongolia Ulaanbaatar, Mongolia

1min
page 55

Ramping Up Thailand’s Electric Vehicle Charging Facilities Bangkok, Thailand

1min
page 54

Closing Batumi’s Sustainable Urban Transport Gaps Batumi, Georgia

1min
page 53

Green Buses Increase Efficiency and Decrease Emissions Qingdao, PRC

1min
page 52

Connecting River Banks and Citizens to Promote Green Transport Nur-Sultan, Kazakhstan

1min
page 51

The Liuzhou Model for Mobility Electrification Liuzhou, PRC

1min
page 50

Financial Support Promotes Low-Carbon Upgrades Ulaanbaatar, Mongolia

5min
pages 46-48

The Island Nation POISED to Embrace Solar Addu City, Maldives

1min
page 45

Hydropower for Vanuatu’s Population Espiritu Santo and Malekula, Vanuatu

3min
pages 37-38

Changsha Tests the Water with River Heating Technology Changsha, PRC

3min
pages 40-42

A Sunny Boost for Viet Nam’s Power Ho Chi Minh City, Viet Nam

1min
page 35

Affordable Loans for Greener Houses Ulaanbaatar, Mongolia

1min
page 44

Green Bonds Finance Thailand’s Largest Wind Farm Chaiyaphum, Thailand

1min
page 43

Updating the Kyrgyz Republic’s Aging Hydropower Tash-Kumyr, Kyrgyz Republic

1min
page 34

Utility-Scale Solar Comes to Dhaka Dhaka, Bangladesh

1min
page 33

Heating Homes without the Smog Ulaanbaatar, Mongolia

1min
page 31

Concentrated Mitigation Efforts Delingha, PRC

3min
pages 27-28

Making the Most of the Sun in Mongolia Ulaanbaatar, Mongolia

1min
page 21

Micro-grids for the Federated States of Micronesia Kosrae and Yap, Federated States of Micronesia

1min
page 26

Water and Power from Visakhapatnam’s Reservoir Visakhapatnam, India

1min
page 22

Hydropower Makes a Splash in Solomon Islands Honiara, Solomon Islands

1min
page 20

Small Island Nation, Big Clean Energy Plans Nuku’alofa, Tonga

1min
page 29

Harnessing as Much as Land Enables in Kaihua County Quzhou, PRC

1min
page 30

Prologue

2min
pages 14-16
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