Best Practices for Emissions Reduction
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Around the world, cities are gaining ground in the fight to slow and reduce their GHG emissions. This section contains a collection of case studies that detail real-life success stories and provide useful insights and practical information which will aid your city in the fight to reduce greenhouse gas emissions. See Best Practices.
Green Building
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Category: Buildings
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City: Austin USA
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Austin's green building program facilitates the construction of sustainable buildings.
Building Standards
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Category: Buildings
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City: Berkeley USA
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Berkeley's building standards mandate increases efficiency and pays back householders in two years.
Energy Efficiency Program
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Category: Buildings
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City: Berlin, Germany
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An innovative energy efficiency program that costs building owners zero, drives down C02, and generates immediate savings.
Carbon Neutral City
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Category: Buildings
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City: Dongtan City, China
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The world's first carbon neutral sustainable city.
Building Energy Efficiency
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Category: Buildings
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City: Heidelberg, Germany
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Energy efficiency in Heidelberg buildings reduces emissions.
Eco Friendly Building
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Category: Buildings
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City: Melbourne, Australia
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Council House 2 (CH2) new municipal office building: eco-buildings cuts C02 87%, electricity 82%, gas 87% and water 72%.
Solar Power
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Category: Buildings
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City: San Francisco, USA
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Largest city-owned solar power system in the United States.
Green Buildings
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Category: Buildings
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City: Seattle, USA
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Seattle sets the standards for green buildings.
Seattle Justice Center
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Category: Buildings
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City: Seattle, USA
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Sustainable building regulates temperature with an innovative exterior and green roof.
Innovative Air Conditioning
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Category: Energy
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City: Amsterdam, Netherlands
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Lake water air conditioning cuts CO2 emissions by 70% compared to conventional cooling.
Energy Efficiency Fund
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Category: Energy
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City: Ann Arbor, USA
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An energy efficiency fund costing $500,000 over five years that is reducing CO2 emissions by 980+ tons annually.
Eco-friendly City
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Category: Energy
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City: Freiburg, Germany
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Freiburg - an inspirational city powered by solar, where a third of all journeys are by bike.
Energy Retrofits
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Category: Energy
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City: Houston, USA
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Free energy retrofits saving poorer homes $335 and slashing 1,100 tons CO2 per year.
Energy Audits
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Category: Energy
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City: Melbourne, Australia
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Melbourne has reduced CO2 emissions by 1.1 million tons by making energy audits mandatory.
Renewable Energy Initiative
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Category: Energy
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City: Tokyo, Japan
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Tokyo is moving energy companies to supply 20% renewable energy by 2020.
Sustainability Fund
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Category: Energy
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City: Toronto, Canada
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Toronto’s Atmospheric Fund makes sustainability affordable.
LED Street Lighting
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Category: Lighting
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City: Ann Arbor, USA
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LED street lighting pilot project reduces energy use by 80%.
LED Traffic Lights
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Category: Lighting
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City: Chicago, USA
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LED traffic lights reduce energy use in Chicago by 85%.
Intelligent Streetlights
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Category: Lighting
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City: Oslo, Norway
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10,000 Intelligent streetlights save 1440 tCO2 and reduce energy consumption by 70%.
LED Traffic Lights
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Category: Lighting
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City: Portland OR, USA
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Portland replaces 1,000 traffic intersection signals with LED lights, saving millions of kilowatt-hours per year.
Lighting Retrofit Program
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Category: Lighting
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City: Vietnam
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One of the biggest lighting retrofit programs benefiting an entire country.
Cutting Port-side Emissions
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Category: Ports
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City: Seattle, USA
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Port of Seattle cuts vessel emissions by 29% annually and saves 26% on energy costs per call.
Renewable Energy Program
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Category: Renewables
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City: Austin, USA
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Austin's renewable energy program reduces C02 emissions by 370,257 tons a year.
Off-Shore Wind Farm
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Category: Renewables
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City: Copenhagen, Denmark
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One of the largest off-shore wind farms in the world powers 150,000 Danish households.
Renewable Energy
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Category: Renewables
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City: Los Angeles, USA
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Green energy for a green Los Angeles provides a renewable energy option for consumers.
Solar Energy
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Category: Renewables
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City: Melbourne, Australia
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Queen Victoria market solar energy - south hemisphere's largest solar project.
Solar Thermal Plant
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Category: Renewables
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City: Nevada, USA
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Nevada's solar thermal plant powers 14,000 homes cutting 100,000 tons of CO2 annually.
Geothermal Heating
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Category: Renewables
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City: Reykjavik, Iceland
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The world's largest geothermal heating system saves up to 4m tons CO2 annually.
Solar Program
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Category: Renewables
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City: Rizhao, China
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An extensive solar program in China.
Solar Power
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Category: Renewables
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City: Serpa, Portugal
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The world's largest PV solar power plant.
Bus Rapid Transit System
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Category: Transport
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City: Bogotá, Columbia
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BRT system reduced traveling time 32%, reduced gas emissions 40% and reduced accidents 90%.
Comprehensive Cycling System
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Category: Transport
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City: Bogotá, Columbia
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Bogotá’s CicloRuta is one of the most comprehensive cycling systems in the world.
Cycling to Reduce GHG Emissions
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Category: Transport
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City: Copenhagen, Denmark
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City of cyclists reduces approximately 90,000 tons of C02 emissions per year and has over 36% of the city's population cycling to work everyday.
Eco-friendly City
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Category: Energy
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City: Freiburg, Germany
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Freiburg - an inspirational city powered by solar, where a third of all journeys are by bike.
Bus Rapid Transit System
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Category: Transport
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City: Jakarta, Indonesia
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A 12.9 km Bus Rapid Transport system built in just 9 months at a cost of $2million/km.
Congestion Pricing
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Category: Transport
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City: London, UK
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London's congestion charge cuts CO2 emissions by 16%.
Fuel Efficient Taxis
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Category: Transport
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City: Mexico City, Mexico
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Mexico City replaced 3,000 taxis with more fuel efficient models.
Cycling Incentives
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Category: Transport
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City: Rio de Janiero, Brazil
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Car insurance firm encourages citizens to avoid using cars and get on their bikes!
ZEV Transportation System
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Category: Transport
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City: San Francisco, USA
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A world-leading low emissions transport system with zero-emission vehicles.
Car-free Days
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Category: Transport
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City: Seoul, South Korea
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Seoul car-free days have reduced CO2 emissions by 10% annually.
Congestion Pricing
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Category: Transport
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City: Stockholm, Sweden
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Stockholm to introduce congestion charge - trial cut CO2 by 14%, traffic by 25%.
Clean Vehicles
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Category: Transport
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City: Stockholm, Sweden
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Stockholm's clean vehicles are slashing 200,000 tons C02 annually.
Comprehensive Waste Management
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Category: Waste
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City: Cairo, Egypt
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15-May facility delivers comprehensive waste management, compost and 75000 tons of CO2 reductions.
Composting Organic Waste into Fertilizer
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Category: Waste
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City: Dhaka, Bangladesh
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Organic waste is composted and sold as bio-rich fertilizer - reducing emissions, generating jobs and cleaning up the city.
Landfill Gas to Energy
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Category: Waste
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City: Durban, South Africa
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First Landfill-Gas-To-Energy Project in Africa in Partnership with the World Bank.
Landfill Gas to Energy
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Category: Waste
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City: Gothenburg, Sweden
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Waste to energy cuts 200,000t CO2 annually in Gothenburg.
Benefits of Recycling
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Category: Waste
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City: Sydney, Australia
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Sydney waste recycling cuts 210,000t CO2 and generates $11.6M USD annually.
Reducing Water Leakage
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Category: Water
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City: Emfuleni, South Africa
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A water efficiency system known as advanced pressure management reduces pressure in the city's water network, thus reducing the amount of water leaking through small undetected holes.
Reducing Water Leakage
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Category: Water
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City: Fortaleza, Brazil
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New monitoring and control system halted large scale water leakage and now generates $2.5 million a year in savings.
Water Conservation
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Category: Water
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City: Tokyo, Japan
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World leader in stopping water leakage.