Clean, efficient and profitable

1000 Solutions to protect the environment

156 Efficient solutions found

Filter by MATURITY STAGE:
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Protifly
  • sdg 9.
  • sdg 12.
Dec
2019

Prototype

Protifly

Uses the Black Soldier Fly to turn agroindustrial byproducts into high quality ingredients for animal feed manufacturers.
Capterall®
  • sdg 6.
  • sdg 9.
Dec
2019

Small market

Capterall®

Captures pollutants from urban and industrial wastewater.
ECOncrete®
  • sdg 9.
  • sdg 11.
  • sdg 12.
Dec
2019

Small market

ECOncrete®

An environmentally sensitive concrete solution that enhances the biological and ecological value of urban, coastal and marine structures.
Comwatt power
  • sdg 7.
  • sdg 11.
Dec
2019

Small market

Comwatt power

Synchronizes electrical supply & demand with connected objects to help manage households' energy consumption.
Building-scale wastewater treatment
  • sdg 6.
  • sdg 11.
  • sdg 12.
Dec
2019

Prototype

Building-scale wastewater treatment

Redefines urban wastewater by decentralizing treatment into individual buildings.
Prognos®
  • sdg 9.
  • sdg 11.
  • sdg 12.
Dec
2019

Large market

Prognos®

A predictive aircraft maintenance solution based on big data analysis.
Mudwizard
  • sdg 6.
  • sdg 9.
  • sdg 12.
Nov
2019

Large market

Mudwizard

A Simple, flexible, robust and effective suspended solids water and mud treatment system
Gigabot X
  • sdg 9.
  • sdg 12.
Nov
2019

Small market

Gigabot X

An industrial 3D printer-to 3D print directly from reclaimed plastic pellets or flake.
Ubiblue
  • sdg 7.
  • sdg 11.
Nov
2019

Prototype

Ubiblue

A clean chillers based on magnetocaloric effect for cooling and wasted heat purposes.
Graphene-Oil Ultra Matrix
  • sdg 7.
  • sdg 9.
Nov
2019

Small market

Graphene-Oil Ultra Matrix

A lubricant to reduce consumption and pollution by increasing the mechanical efficiency of vehicles.
DCC™
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 11.
  • sdg 12.
Nov
2019

Prototype

DCC™

A hydrogen powered steam boiler for Combined Heat and Power (CHP) producing only heat and water without GHG emissions.
INSQIN® Waterborne PU
  • sdg 9.
Nov
2019

Large market

INSQIN® Waterborne PU

A new generation of PU (Polyurethane) technology for the production of PU-coated fabrics.
Everimpact
  • sdg 11.
  • sdg 12.
Nov
2019

Prototype

Everimpact

A software to help cities reduce CO2 emissions and generate revenues from emerging climate finance instruments.
Wave-powered desalination buoys
  • sdg 6.
  • sdg 7.
Nov
2019

Prototype

Wave-powered desalination buoys

A water desalination system powered mechanically by waves as the only source of energy
Smartomizer
  • sdg 12.
Nov
2019

Large market

Smartomizer

An intelligent and connected sprayer that reduces pesticides needs and fuel consumption while keeping track.
SunAqua
  • sdg 6.
Nov
2019

Prototype

SunAqua

An affordable water distillation system based on solar power.
TAPP 2
  • sdg 6.
  • sdg 11.
  • sdg 12.
Nov
2019

Small market

TAPP 2

An easy, affordable solution that filter water straight from the tap for clean and tasty tap water.
Afynerie
  • sdg 7.
  • sdg 12.
Nov
2019

Prototype

Afynerie

Convert the Agro industry by-products into bio-based molecules for food, feed, cosmetic applications, as a substitution to oil based ones
LIFI WIRELESS MOBILE COMMUNICATIONS NETWORK
  • sdg 7.
  • sdg 9.
  • sdg 11.
Nov
2019

Large market

LIFI WIRELESS MOBILE COMMUNICATIONS NETWORK

A high speed bidirectional networked and mobile communication of data using light
ODYSSEY
  • sdg 7.
  • sdg 11.
Nov
2019

Initial market

ODYSSEY

A software for investment decision in new energy systems
Intercome
  • sdg 12.
Oct
2019

Large market

Intercome

Exploit the potential of microalgae as a CO2 consuming & inexhaustible raw material to develop innovative & efficient solutions for different sectors.
MISER Hydraulic Hybrid Transmission
  • sdg 9.
Oct
2019

Initial market

MISER Hydraulic Hybrid Transmission

A hydraulic hybrid transmission solution to regenerative braking and engine optimization for any size vehicle
GreenCIP
  • sdg 9.
Oct
2019

Small market

GreenCIP

A technology allowing a permanent reuse of industrial cleaning chemicals.
Solar Green House Dryer (GHD)
  • sdg 12.
Oct
2019

Large market

Solar Green House Dryer (GHD)

A dehydration system of agro-products to mitigate post-harvest losses & improve earning capabilities of small farmers
Fill-4-Life
  • sdg 9.
  • sdg 12.
Oct
2019

Small market

Fill-4-Life

A solution for turbine oils resulting in cost savings and CO2 emission reductions
Philips TrueForce LED Public
  • sdg 11.
Oct
2019

Large market

Philips TrueForce LED Public

A multi application road Lamp
Philips TownTune
  • sdg 11.
Oct
2019

Large market

Philips TownTune

A versatile range of luminaires for scalable urban spaces
Philips PowerBalance
  • sdg 11.
Oct
2019

Large market

Philips PowerBalance

An energy-efficient LED luminaire that complies with all office lighting norms to ensure a comfortable working environment
Biosorb
  • sdg 6.
Oct
2019

Prototype

Biosorb

A bio-based filter for the cleanup of water containing heavy metals and phytosanitary pollutants
Carbonium
  • sdg 9.
  • sdg 12.
Oct
2019

Initial market

Carbonium

A new generation of carbon fiber composite material entirely sourced from the Aerospace supply-chain by-products.
DOMESPACE
  • sdg 11.
Oct
2019

Small market

DOMESPACE

A round, wooden, intelligent and sustainable dome house that turns with the sun
Philips SunStay
  • sdg 7.
  • sdg 11.
Oct
2019

Large market

Philips SunStay

A integrated solar street light with lithium-ferro-phosphate battery, solar panel and charger
Philips SIS
  • sdg 7.
  • sdg 11.
Oct
2019

Large market

Philips SIS

A range of Solar Indoor System
MPC-Buoy
  • sdg 6.
Sep
2019

Large market

MPC-Buoy

A chemical-free solution to monitor and control algal blooms in water reservoirs
Lean, light and smart energy home
  • sdg 7.
Sep
2019

Prototype

Lean, light and smart energy home

A clean and affordable solution to provide basic house energy needs.
Eco-Solar
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 12.
Sep
2019

Prototype in lab

Eco-Solar

Optimising the eco-efficiency in the photovoltaic value chain.
Solvent Technology
  • sdg 12.
Sep
2019

Initial market

Solvent Technology

Mobile solar thermal system for agriculture and industries
SOLAR WIFI ECO BIN
  • sdg 7.
  • sdg 11.
  • sdg 12.
Sep
2019

Initial market

SOLAR WIFI ECO BIN

A smart city solution that promotes recycling and a healthy community connection with cities and their people
Smart Container
  • sdg 9.
  • sdg 12.
Sep
2019

Prototype in lab

Smart Container

A shipping container with Artificial Intelligence
Sempack
  • sdg 9.
Sep
2019

Initial market

Sempack

An innovative eco-responsible packaging tool for multiples applications.
MetaCard
  • sdg 7.
  • sdg 11.
Sep
2019

Small market

MetaCard

Optimized active balancing circuit for battery efficiency
Fresnel Solar Steam Generator
  • sdg 7.
Sep
2019

Large market

Fresnel Solar Steam Generator

A solar solution for the generation of process steam at industrial facilities.
BioPak
  • sdg 9.
  • sdg 12.
Sep
2019

Large market

BioPak

Compostable and sustainable foodservice packaging

FGWRS
  • sdg 6.
  • sdg 11.
Sep
2019

Prototype

FGWRS

A controlled process for grey water recycling.
Rosi
  • sdg 7.
  • sdg 9.
  • sdg 12.
Aug
2019

Prototype in lab

Rosi

Silicon recycling for photovoltaics
Airy
  • sdg 11.
Aug
2019

Large market

Airy

Air purification with plants
Newcy
  • sdg 12.
Aug
2019

Small market

Newcy

Reusable cups for companies
Solef® PVDF
  • sdg 7.
Aug
2019

Large market

Solef® PVDF

Polymers to extend battery life
ELSA
  • sdg 7.
  • sdg 11.
  • sdg 12.
Aug
2019

Initial market

ELSA

An electrical storage system
Smart Greenhouse
  • sdg 6.
  • sdg 7.
  • sdg 12.
Aug
2019

Small market

Smart Greenhouse

Greenhouse with internet connection for smart management
Hydrao Aloé
  • sdg 6.
  • sdg 11.
Aug
2019

Large market

Hydrao Aloé

Smart Showerhead
3Bee Hive-Tech
  • sdg 12.
Aug
2019

Initial market

3Bee Hive-Tech

IoT monitoring system for farm animals
Horizontal Bed Kiln
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 12.
Aug
2019

Prototype

Horizontal Bed Kiln

Horizontal bed pyrolysis kiln
UBQ : Waste Conversion Technology
  • sdg 9.
  • sdg 11.
  • sdg 12.
Aug
2019

Initial market

UBQ : Waste Conversion Technology

Conversion of household waste into up-cycled bio-based materials
Gjosa
  • sdg 6.
Aug
2019

Prototype

Gjosa

Multiple application water-saving technology
Pyrowave
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 12.
Aug
2019

Prototype

Pyrowave

Portable plastic waste recycling machine
Aqualone
  • sdg 6.
  • sdg 12.
Aug
2019

Small market

Aqualone

Low-tech irrigation controller
IHS (Induction Humidification System)
  • sdg 6.
  • sdg 9.
Jul
2019

Prototype

IHS (Induction Humidification System)

Industrial humidification system

Opulent Electric Vehicles
  • sdg 11.
Jul
2019

Prototype

Opulent Electric Vehicles

High performance electric vehicles
Cold Membrane CO2 Capture process
  • sdg 9.
Jul
2019

Prototype

Cold Membrane CO2 Capture process

Greenhouse gas capture technology
Rotor Sails
  • sdg 7.
  • sdg 9.
Jul
2019

Small market

Rotor Sails

Auxiliary wind propulsion system
EQUIUM
  • sdg 7.
  • sdg 9.
Jul
2019

Prototype in lab

EQUIUM

Recycling waste heat into energy using thermoacoustic technology
Modul'O
  • sdg 6.
  • sdg 7.
  • sdg 11.
  • sdg 12.
Jul
2019

Initial market

Modul'O

Local treatment for organic waste
Solaxess
  • sdg 7.
  • sdg 11.
Jul
2019

Initial market

Solaxess

White and light-colour films for PV modules
AquaSOL
  • sdg 6.
  • sdg 9.
  • sdg 11.
  • sdg 12.
Jun
2019

Initial market

AquaSOL

Solar-powered water treatment unit
Shore-to-Ship Power
  • sdg 7.
  • sdg 9.
  • sdg 11.
Jun
2019

Large market

Shore-to-Ship Power

Electrification for ships in berth
VLT® AQUA Drive FC 202
  • sdg 6.
  • sdg 11.
Jun
2019

Large market

VLT® AQUA Drive FC 202

AC Drive for wastewater treatment
Solatube Tubular Daylighting
  • sdg 11.
Jun
2019

Large market

Solatube Tubular Daylighting

Energy efficient green building components
Balsamo
  • sdg 12.
Jun
2019

Initial market

Balsamo

Additive for increasing efficiency in agriculture
Sunstyle
  • sdg 7.
  • sdg 11.
Jun
2019

Large market

Sunstyle

Scalable photovoltaic roofing

Stor-H
  • sdg 7.
  • sdg 9.
  • sdg 11.
Jun
2019

Initial market

Stor-H

A safe, easy-to-use hydrogen storage solution requiring minimal infrastructure to enable zero CO2 light urban mobility.
Solar Cooling
  • sdg 7.
  • sdg 11.
Jun
2019

Small market

Solar Cooling

Heating and cooling for buildings
Powerstove
  • sdg 7.
Jun
2019

Prototype

Powerstove

Smokeless cookstove
SOLVAir®
  • sdg 7.
  • sdg 9.
  • sdg 11.
  • sdg 12.
Jun
2019

Large market

SOLVAir®

Process for cleaning of flue gases
VACON® NXP Grid Converter
  • sdg 7.
  • sdg 9.
  • sdg 11.
Jun
2019

Large market

VACON® NXP Grid Converter

Alternative power for ships in port
DI Global System
  • sdg 12.
Jun
2019

Large market

DI Global System

Low carbon cleaning for energy producing facilities
Thiopaq
  • sdg 9.
  • sdg 12.
Jun
2019

Large market

Thiopaq

An oil and gas bio-desulfurization system
Aqua-4D Water Solutions
  • sdg 6.
  • sdg 12.
Jun
2019

Large market

Aqua-4D Water Solutions

Water treatment technology
Smart X
  • sdg 11.
Jun
2019

Large market

Smart X

Power meter
Cement production with reduced CO2 emissions
  • sdg 6.
  • sdg 9.
  • sdg 11.
Jun
2019

Small market

Cement production with reduced CO2 emissions

Low emission process for cement and concrete production.
ScaleBuster
  • sdg 6.
  • sdg 9.
  • sdg 11.
Jun
2019

Large market

ScaleBuster

Water system treatment for scale and corrosion
Europa V5 – Cleanea
  • sdg 6.
  • sdg 12.
Jun
2019

Large market

Europa V5 – Cleanea

A technology that produces ecological disinfectant and degreaser through an electrolysis process.
Cool Green Energy Factory
  • sdg 7.
  • sdg 9.
May
2019

Initial market

Cool Green Energy Factory

Cold energy storage technology
NuTree
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 11.
  • sdg 12.
May
2019

Prototype in lab

NuTree

Wastewater treatment and recycling
Aqua Assist
  • sdg 6.
May
2019

Small market

Aqua Assist

Biocatalyst for wastewater sludge reduction
Solar Ferry Boat
  • sdg 9.
  • sdg 11.
May
2019

Small market

Solar Ferry Boat

Solar-powered ferry boat
Clara Pur (CP)
  • sdg 6.
May
2019

Prototype

Clara Pur (CP)

Providing drinking water through solar energy
Air Pollution Abatement (APA)
  • sdg 9.
  • sdg 11.
May
2019

Initial market

Air Pollution Abatement (APA)

Commercial and industrial air purifier
SOPRASOLAR FIX EVO
  • sdg 7.
May
2019

Large market

SOPRASOLAR FIX EVO

Photovoltaic waterproofing process
Structure Cooling
  • sdg 11.
May
2019

Large market

Structure Cooling

Energy efficient cooling system
Downflow Gas Contactor (DGC) Technology
  • sdg 6.
  • sdg 7.
  • sdg 9.
May
2019

Prototype

Downflow Gas Contactor (DGC) Technology

Gas contactor for mass transfer
Mobil-Watt®
  • sdg 7.
May
2019

Initial market

Mobil-Watt®

A mobile solar PV container
LED Bulb for Household Use
  • sdg 11.
May
2019

Large market

LED Bulb for Household Use

LED light bulb
MABR (Membrane Aerated Biofilm Reactor)
  • sdg 6.
  • sdg 12.
May
2019

Small market

MABR (Membrane Aerated Biofilm Reactor)

Paptic
  • sdg 9.
Apr
2019

Small market

Paptic

Replacing paper and plastics
Altered:Nozzle Pro
  • sdg 6.
  • sdg 11.
Apr
2019

Small market

Altered:Nozzle Pro

Dual flow atomizer
AgRho® S-Boost
  • sdg 6.
  • sdg 9.
  • sdg 12.
Apr
2019

Small market

AgRho® S-Boost

Seed coating technology
WEEECAM
  • sdg 12.
Apr
2019

Initial market

WEEECAM

Electronic waste refurbishing and recycling
Winnow
  • sdg 12.
Apr
2019

Large market

Winnow

Food waste reduction digital tool for chefs
°CoolRoof - paint the roof, °cool the planet
  • sdg 11.
Apr
2019

Small market

°CoolRoof - paint the roof, °cool the planet

A white thermo-reflective roof coating that reflects sun heat
AmpliSIM
  • sdg 9.
  • sdg 11.
Apr
2019

Initial market

AmpliSIM

Environmental impact simulation and forecast service
Energiency Software
  • sdg 9.
Apr
2019

Large market

Energiency Software

Energy Intelligence Technology for Manufacturing
Solar-Dripper
  • sdg 6.
  • sdg 11.
  • sdg 12.
Apr
2019

Large market

Solar-Dripper

Drip irrigation system
Danfoss Turbocor®
  • sdg 7.
  • sdg 11.
Mar
2019

Large market

Danfoss Turbocor®

Oil-free magnetic bearing compressor for chillers
PlakMan
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 12.
Mar
2019

Prototype in lab

PlakMan

Solar powered boat
Heat Recovery from Rotary Kilns
  • sdg 7.
  • sdg 9.
Mar
2019

Initial market

Heat Recovery from Rotary Kilns

Heat recovery system
Usitoo
  • sdg 12.
Mar
2019

Initial market

Usitoo

Rental system for everyday objects
Community Solar
  • sdg 7.
Mar
2019

Small market

Community Solar

Solar energy through a monthly subscription
Greenrail
  • sdg 9.
  • sdg 11.
  • sdg 12.
Mar
2019

Small market

Greenrail

Sustainable railway sleeper
Affordable Solar Energy
  • sdg 7.
Mar
2019

Small market

Affordable Solar Energy

B2B solar-as-a-service packages

Water Widget
  • sdg 6.
Mar
2019

Large market

Water Widget

Water-saving device for shower
BHEP
  • sdg 11.
Feb
2019

Small market

BHEP

Hybrid Positive-Economy Building
Efficient smart grid technology
  • sdg 6.
  • sdg 7.
Feb
2019

Prototype

Efficient smart grid technology

Controlling the energy balance in the isolated grids.

Sopratec III
  • sdg 9.
  • sdg 11.
Feb
2019

Large market

Sopratec III

Energy efficient building airtightness system
Breeze Technologies Environmental Intelligence
  • sdg 6.
  • sdg 9.
  • sdg 11.
Feb
2019

Large market

Breeze Technologies Environmental Intelligence

Smart air quality sensors

ERIS (Evaporation Reduction Intelligent System)
  • sdg 6.
  • sdg 9.
Feb
2019

Small market

ERIS (Evaporation Reduction Intelligent System)

Bio-inspired floating screen to prevent evaporation of volatile liquids
Eco Chiller
  • sdg 7.
  • sdg 9.
Feb
2019

Large market

Eco Chiller

Energy recovery from cryogenic gases
NEXUS
  • sdg 6.
  • sdg 11.
  • sdg 12.
Feb
2019

Prototype

NEXUS

New business model for rural fishers and farmers
Solar Analytics
  • sdg 7.
Feb
2019

Small market

Solar Analytics

Real-time solar energy monitoring system
Smart Energy Hub
  • sdg 7.
  • sdg 11.
Feb
2019

Prototype

Smart Energy Hub

Hybrid energy storage for autonomous buildings
Hydraloop
  • sdg 6.
  • sdg 11.
  • sdg 12.
Feb
2019

Small market

Hydraloop

Residential greywater recycling system

Smart solar boiler
  • sdg 6.
  • sdg 7.
  • sdg 9.
Jan
2019

Small market

Smart solar boiler

Smart concentrated solar boilers for industries
Agnisumukh
  • sdg 6.
  • sdg 7.
  • sdg 9.
  • sdg 11.
Jan
2019

Small market

Agnisumukh

Uniform radiant heat kitchen stove
ECOLOO
  • sdg 6.
  • sdg 11.
  • sdg 12.
Jan
2019

Large market

ECOLOO

Sustainable Toilet Techology
Opticube
  • sdg 7.
  • sdg 11.
Dec
2018

Small market

Opticube

All in one solar thermal container system, easy to install and accessible to everyone in the world.
SolarSea
  • sdg 7.
Dec
2018

Prototype

SolarSea

SolarSea is a commercial renewable energy product that creates space for solar panels on the sea surface
JPH1 seeds
  • sdg 7.
Dec
2018

Small market

JPH1 seeds

An innovative seed to facilitate production of new generation biofuel conforming to stricter sustainability guidelines through climate-smart agriculture.
AEROPAK G
  • sdg 7.
  • sdg 11.
Nov
2018

Small market

AEROPAK G

An ultra-light electrical energy storage alternative to batteries for long duration electric powered flight.
SopraStar
  • sdg 9.
  • sdg 11.
Nov
2018

Large market

SopraStar

This membrane mitigates heat urban island effect and reduces summer discomfort thanks to advanced surface radiative properties.
IPSIIS
  • sdg 9.
  • sdg 11.
  • sdg 12.
Nov
2018

Prototype

IPSIIS

A sustainable insulation solution for green affordable housing and energy conservation: locally produced, fire-proof, light mineral foam.
KIGO
  • sdg 7.
  • sdg 9.
  • sdg 11.
Nov
2018

Small market

KIGO

KIGO panels are highly efficient fully irrigated heat exchangers that have a very high specific cooling and heating power.
Skybreathe
  • sdg 9.
  • sdg 11.
Sep
2018

Large market

Skybreathe

Software to help airline pilots improve their flying technique to save fuel and reduce C02 emissions
Sustonable
  • sdg 12.
Aug
2018

Small market

Sustonable

Kitchen countertops from recycled plastic PET bottles
innovative telemetry unit
  • sdg 9.
  • sdg 11.
Aug
2018

Large market

innovative telemetry unit

A remote monitoring solutions of tanks to improve the efficiency of the supply chain for bulk deliveries based on an innovative telemetry unit coupled with sensors and a cloud solution
Sion
  • sdg 7.
  • sdg 11.
Jul
2018

Prototype

Sion

An Electric Vehicle able to recharge itself through integrated solar panels system
Bound4blue
  • sdg 9.
Jul
2018

Initial market

Bound4blue

Wingsail system for fuel efficiency in the shipping industry
Agolin® Ruminant
  • sdg 9.
  • sdg 12.
Jul
2018

Large market

Agolin® Ruminant

A blend of high quality plant extracts that has been shown to reduce methane production and improve efficiency in dairy cows and beef cattle

STARKLAB
  • sdg 9.
Jun
2018

Small market

STARKLAB

Increasing air quality while significantly cutting down on energy costs thanks to a technology that recycles the heat of polluting fumes.
Cryo Fuel
  • sdg 7.
  • sdg 9.
Jun
2018

Initial market

Cryo Fuel

A highly efficient cryogenic process that makes the transformation of biogas into clean fuel for heavy vehicles more affordable and widely applicable.
E.S.T.
  • sdg 9.
  • sdg 12.
Jun
2018

Prototype in lab

E.S.T.

An environmental and economic dredging solution to help recycle sediment from lake and river beds
IOT flood alert
  • sdg 11.
Jun
2018

Small market

IOT flood alert

A smart, connected flood alert and forecasting solution to monitor real-time river levels and anticipate flood events.

VLT® HVAC Drive
  • sdg 7.
  • sdg 11.
Jun
2018

Large market

VLT® HVAC Drive

Unique AC drive for much more efficient Heating, Ventilation and Air-Conditioning system
District Cooling Systems
  • sdg 7.
  • sdg 11.
May
2018

Large market

District Cooling Systems

Integrated chilled water production system for efficient cooling of buildings in cities
animeo Connect
  • sdg 11.
May
2018

Large market

animeo Connect

Facade shading management solution for increased energy savings in buildings
Low-cost substructure system
  • sdg 7.
  • sdg 9.
  • sdg 11.
May
2018

Prototype

Low-cost substructure system

Bottom-fixed offshore turbine prototype that can be installed safely, simply and without cranes
Claranor
  • sdg 9.
May
2018

Small market

Claranor

Pulsed light packaging sterilization equipment for bioindustries
WATA™ technology
  • sdg 6.
May
2018

Small market

WATA™ technology

Devices to enable local treatment and disinfection of water
REM
  • sdg 6.
  • sdg 9.
  • sdg 12.
May
2018

Prototype

REM

Acid regeneration system enabling recovery of waste acid components created through pickling of stainless steel.
Kelda Technology
  • sdg 6.
  • sdg 9.