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- Cyclic, integral agriculture
- Cycling
- Cycling, sustainable community action
- Cycling UK
- Cycling UK news
- Cycling UK news/2013-2016
- Cycling UK news/2017
- Cycling activism
- Cycling activism London
- Cycling activism UK
- Cycling news
- Cycling news/2013-16
- Cycling news/2013-2014
- Cycling news/2015-16
- Cycling news/2015-2016
- Cycling news/2017
- Cycling news/2018- 2020
- Cycling news 2013-16
- Cycling news 2017
- Czech Republic
- Czech Republic Sustainable Development
- Czech Republic Sustainable Development/hi
- Czech Republic community action
- Cáñamo
- Código abierto Impresora 3-D para Metales
- Código abierto Impresora 3-D para Metales/fr
- Código abierto Impresora 3-D para Metales/pt
- Cómo fabricar una cocina solar con antena parabólica
- Cómo fabricar una cocina solar con antena parabólica/es
- Cómo hacer chucrut casero
- Cómo hacer ecoladrillos caseros
- Cómo hacer un deshidratador solar con una caja
- Cómo hacer un deshidratador solar con una caja/en
- Cómo hacer un deshidratador solar con una caja/pt
- Cómo hacer un deshidratador solar de cartón
- Cómo hacer un deshidratador solar de cartón/en
- Cómo hacer un horno solar
- Cómo hacer un horno solar con una caja
- Cómo hacer un horno solar de cartón
- Cómo hacer una huerta comunitaria
- Cómo hacer una huerta comunitaria/es
- Cómo hacer una linda maceta con un bidón
- Cómo leer etiquetas de lavado
- D-Lab
- D-lab
- D-tree Mobile Health Algorithm
- DAIRY
- DC-DC Buck converter
- DDT
- DDT and the effects on Malaria
- DDT and the effects on malaria
- DIESEL
- DIF Adobe Senior Center
- DIF Adobe Senior Center 2007
- DIF Adobe Senior Center 2008
- DIY
- DIY Air Filter
- DIY Air Filter - Team DCH
- DIY Air Filter DCH
- DIY Desk/Table
- DIY Desk and Table
- DIY Graphing Chalkboard
- DIY Robot Arm for Children - a drawing robot to be made by children in an educational context
- DIY Solar Panel
- DIY air filter
- DIY air filter user manual
- DIY bike trailer projects/Engr114 fabrication
- DIY bike trailer projects/baby jogger type
- DIY bike trailer projects/backpack frame type
- DIY bike trailer projects/by ITDG
- DIY bike trailer projects/by OSU
- DIY bike trailer projects/upcycled by SCRAP (instructions)
- DIY bike trailer projects/upcycled by SCRAP Humboldt
- DIY bike trailer projects/upcycled by SCRAP instructions
- DIY compost bin projects
- DIY compost bin projects/CCAT 2006
- DIY compost bin projects/CCAT 2008
- DIY compost bin projects/CCAT 2020
- DIY compost bin projects/CCAT 2020/Literature review
- DIY compost bin projects/Dana
- DIY compost bin projects/Friends of the Dunes
- DIY compost bin projects/Jefferson Community Center
- DIY compost bin projects/Lorelei
- DIY compost bin projects/The Sanctuary
- DIY compost bin projects/Zane Middle School
- DIY compost bin projects/ with buckets by Kelsey
- DIY compost bin projects/kid-friendly with jars by Lorelei
- DIY compost bin projects/pentagonal vermicompost at CCAT 2006
- DIY compost bin projects/rapid compost for Friends of the Dunes
- DIY compost bin projects/rotating type at The Sanctuary
- DIY compost bin projects/small vermicompost by Dana
- DIY compost bin projects/stacked type by Hannah
- DIY compost bin projects/tumbling type at Sembradores Urbanos
- DIY compost bin projects/tumbplig type at CCAT 2017
- DIY compost bin projects/two-bay type with pallets by Sara
- DIY compost bin projects/vermicompost at Bayside Park Farm
- DIY compost bin projects/vermicompost at Loma Linda
- DIY compost bin projects/vermicompost at Sembradores Urbanos
- DIY compost bin projects/vermicompost by Loma Linda
- DIY compost bin projects/vermicompost for kids at Locally Delicious
- DIY compost bin projects/vermicompost from a barrel at Finca Amrta
- DIY compost bin projects/vermicompost from a barrel at Locally Delicious)
- DIY compost bin projects/vermicompost with buckets at Jefferson Community Center
- DIY compost bin projects/with buckets by Kelsey
- DIY compost bin projects/with pallets at Jefferson Community Center
- DIY hand sanitizer
- DIY hand sanitizer/de
- DIY masks
- DIY masks/Video tutorials
- DIY masks/literature review
- DIY pedal powered home appliance projects
- DIY pedal powered home appliances projects
- DIY pedal powered tool projects
- DIY solar dehydrator projects
- DIY solar food dehydrator projects
- DIY solar food dehydrator projects/Arcata Educational Farm
- DIY solar food dehydrator projects/ENGR305 by Chris
- DIY solar food dehydrator projects/Flock House Biopod
- DIY solar food dehydrator projects/Fruits of the Nile in Uganda
- DIY solar food dehydrator projects/by Fruits of the Nile in Uganda
- DIY solar food dehydrator projects/for ENGR305 by Chris
- DIY solar food dehydrator projects/for kids with adult supervision at Locally Delicious
- DIY solar food dehydrator projects/for school atLocally Delicious
- DIY solar thermal collectors
- DIY water quality tester projects
- DIY water quality tester projects/WADI Test
- DIY water quality tester projects/WetLand water meter
- DIY water quality tester projects/field-based equipment survey
- DIY water quality tester projects/for rainwater by Isla Urbana
- DIY water quality tester projects/open-source mobile testing platform
- DIY water quality testing projects
- DIY water quality testing projects/WADI Test
- DIY water quality testing projects/WADI test
- DIY water quality testing projects/WetLand water meter
- DIY water quality testing projects/field-based equipment survey
- DIY water quality testing projects/for rainwater by Isla Urbana
- DIY water quality testing projects/open-source mobile testing platform
- DNS hiccup
- DRYANAGI
- DRYFOOD
- DRYTECH
- DRYTRAY
- DR Congo community action
- DUHC Rainwater Catchment
- DYETEXT
- Dachschindeln aus Reifen
- Dachschindeln aus Reifen/de
- Daikon
- Daily menstrual cycle tracker
- Daimyo
- Dairy
- Dairy Industry
- Dairy processing (Practical Action Brief)
- Daisy bush
- Daktari CD4
- Dale Vida al Tecana
- Dam
- Dams
- Dandelion
- Dandelion wine
- Dandelion wine/es
- Dane Noland
- Dangerous climate change
- Danielle's Drop Box for the R.O.S.E. Center
- Dartford community action
- Das Ethanol
- Data Analysis & Feedback Incorporation
- Data Driven Knowledge Agriculture: A Paradigm Shift for Enhancing Food Productivity & Global Food Security
- Data encryption protocol:QAS
- Data for Democracy
- Datos microclimas San Miguel (PNUD Bootcamp 2023)
- Datos y citas
- Datos y citas ambientales
- Daula waste community engagement 2018
- Daula waste product 2018
- David Holmgren
- Daycare rainwater catchment system
- Daylighting
- DeBono's Six Thinking Hats
- DeBono's Six Thinking Hats/ar
- DeBono's Six Thinking Hats/de
- DeLi Linux
- DeNovo Meter
- Dead bodies in natural disasters
- Dead level contours
- Dead reckoning
- Deadheading
- Dealing with a glut of zucchinis
- Dean Kamen
- Debswana Operations Criticism
- Decade of Action for Road Safety 2021-2030
- Decarbonizing rural residential buildings in cold climates: A techno-economic analysis of heating electrification
- Decarbonizing the boardroom? Aligning electric utility executive compensation with climate change incentives
- Decentralised community energy generation
- Decentralised pure plant oil fuel production
- Decentralized Renewable Hybrid Mini-Grids for Rural Communities: Culmination of the IREP Framework and Scale up to Urban Communities
- Deck prisms
- Decline and Fall - Tom Stafford
- Decommissioning
- Decreasing turbidity to optimize solar water disinfection
- Decreasing turbidity to optimize solar water disinfection/ko
- Decreasing turbidity to optimize solar water disinfection lit review
- Decreasing turbidity to optimize solar water disinfection lit review/Disadvantages
- Decreasing turbidity to optimize solar water disinfection lit review/Soil
- Decreasing turbidity to optimize solar water disinfection lit review/Support for technology
- Deep-cycle lead-acid batteries for renewable energy storage
- Deep-democracy
- Deep Lessons - Alan Chapman
- Deep Suctioning
- Deep water source cooling
- Deep water source cooling/fr
- Deep water source cooling/id
- Deep water source cooling/nl
- Deepika Gaur
- Defense for Covert Administrative Techniques for Neutralizing American Highly Qualified Personnel
- Define Moda Cultural
- Define resilience
- Deflagration
- Deforestation
- Deforestation/ar
- Deforestation/es
- Deforestation/it
- Deforestation/si
- Deforestation/sk
- Deforestation/tr
- Deforestation in North Korea
- Deforestation in Somalia
- Deforestation in Somalia/ru
- Deforestation in Somalia/tr
- Deforestion in North Korea
- Deformity Correction Of Lower Limb Bones
- Deformity Correction Of Lower Limb Bones/ru
- Defund Russia with energy projects at home
- Degradation protocol: QAS
- Degradation protocol QAS lab
- Degree day
- Degrowth
- Dehydration Vaults
- Deidre's Vertical Garden
- Deidre's Vertical Garden/Revisión bibliográfica
- Deidre's Vertical Garden/en
- Deidre's Vertical Garden/ko
- Deidre's vertical garden
- Deidre's vertical vegetable garden
- Delaware
- Delaware community action
- Deliquescent/Atmospheric Water Collector
- Deliquescent\Atmospheric Water Collector
- Delta Build Overview
- Delta Build Overview:MOST
- Delta Build Overview:MOST/fr
- Delta Build Overview:MOST/zh
- Delta Build Workshop
- Delta Epoxy Magnets:MOST
- Delta Extruder Drive Assembly:MOST
- Delta Firmware:MOST
- Delta Idler End:MOST
- Delta Motor End Assembly:MOST
- Delta Pilot Holes:MOST
- Delta Software:MOST
- Delta Software:MOST/zh
- Delta Vertical Boards:MOST
- Delta Wiring:MOST
- Delta Wiring:MOST/ru
- Delta calibration
- Delta calibration/de
- Deltalok soft and green walls
- DemoSticks displays
- Demo Camp Einheiten
- Demo Camp Units
- Democratic Republic of the Congo
- Democratising design in scientific innovation: application of an open value network to open source hardware design
- Demonstration of a simple encapsulation technique for prototype silicon solar cells
- Demonstration of a simple encapsulation technique for prototype silicon solar cells/fr
- Demonstration of the integrated rural energy planning framework for sustainable energy development in low-income countries: Case studies of rural communities in Nigeria
- Demonstration of the integrated rural energy planning framework for sustainable energy development in low-income countries: Case studies of rural communities in Nigeria/ar
- Demostración UABJO Humedales Tratamiento de Aguas Residuales, Recuperación y Difusión
- Demotech
- Demotech's kitchen unit for slum areas
- Demotech, design for self-reliance
- Demotech/Defining Concepts
- Demotech/Learning from Poverty
- Demotech/Localize Energy
- Demotech/Making made easier
- Demotech/Means to get informed
- Demotech/Redesign
- Demotech/Search Demotech publications
- Demotech/Sound mobility
- Demotech/Water & Sanitation
- Demotech/pages to port
- Demystifying Evaluation
- Denim
- Denmark
- Denmark community action
- Denmark news
- Denmark news/2013-2017
- Dense-low
- Dense-low/es
- Dense-low/ru
- Dense-low/uk
- Dense-low/zh
- Dental Chair
- Dental Procedures
- Dental Procedures/locations
- Dentifrice
- Dentifrice/th
- Dependence
- Dependency
- Depleted uranium
- Deploying sustainability
- Deployment of Renewable Energy Technologies to Mitigate Climate Change Literature Review
- Depth-adjustable Rope Pump
- Der Biokonverter der Arcata-Marsch
- Der Biokonverter der Arcata Marsch
- Der Papst wird Grün
- Der Papst wird Grün/en
- Der Verschmutzung des Ozeans - die große Mülldeponie des Pazifiks
- Der Vershmutzung des Ozeans - das großse Pazifik Abfallpatch
- Derivatives
- Dermatological Preparations for the Tropics
- Derry, Logan; Dauphinais, Matthew ECE 2242 Final Project, 2022
- Derry, Logan - Drone Project
- Desalination
- Desalination plants
- Descending Colostomy with Separated Stomas
- Descending Colostomy with Separated Stomas/id
- Desert Reclamation the Easy Way
- Desertec
- Desertification
- Desertification/it
- Desertification/mr
- Desertification in China
- Deserving The Future We Want - Eldan Goldenberg
- Design
- Design Challenge
- Design Optimization of Polymer Heat Exchanger for Automated Household-Scale Solar Water Pasteurizer
- Design and Implementation of 3-D Printed Radiation Shields for Environmental Sensors
- Design and Optimization of Microstrip Antenna for Microwave Imaging of Breast Cancers
- Design and Simulation of Solar DC Nano Grid System from Bangladesh Perspective
- Design and Testing of a Low-Cost, Open Source, 3-D Printed Air-Bearing-Based Attitude Simulator for CubeSat Satellites
- Design and build wind power generator
- Design and implementation of mobile educational games
- Design for Human Scale
- Design for Human Scale/ro
- Design for Human Scale/zh