The Lens of Food (F)-Energy (E)-Water (W)M-NEX is a designing support platform through the lens of food-energy-water (FEW) nexus toward SDGs and carbon neutral society.

Food-Energy-Water and the reduction ofCO₂ emissions

Transformation to A Circular Economy
Through Nexus Thinking

Urban area occupies 70% of CO₂ emission globally while FEWtakes 60% in all of sectors, in which 80% comes from domestic
sumptions.

Redesign the efficiency of FEW resources and quality of services bysolving the complexity of FEW nexus for circular citie

0%100%

CO₂ emissions
UrbanFEWPRODUCE

Access
消費FEW

Transport

廃棄CONSUME

WASTE

Access2030

Housing
市場2050

MARKETLand area to meet the demand for FEW

Available land to secure FEW resources and services

Shrinking the area needed to cover FEW demand

We have developed an index, FEWprint, which is used to analyze the current status of thetarget area and evaluate design proposals. It is expressed as the sum of two areas: (1) landarea for food, electricity, and water recharge required to meet the demand for FEW, and (2)equivalent forest area to absorb the emitted CO₂ in the process of acquiring FEW.

Identify the amount of land that can be used for existing or new FEW supply. Then, the area ofland for FEW supply that will be created by spatial design that introduces new technologies,etc., and the increase or decrease in the area of forest for CO₂ absorption will be incorporated into the FEWprint.

Shrinkage of demand sphere for FEW is expected by increasing local production and supply so thatFEWprint is reduced correspondently. To make this a reality, players from government, business, andcitizens will meet in the Living Lab to engage in creative solutions and business plans.

2. Understanding politic goals

3. define design concept

We investigate various conditions such as land, buildings, and society at the city, neighborhood, and block levels to identify SWOT (strengths, weaknesses, opportunities, and threats)of the study area. Based on this information, we launch projects to achieve national and local
policy goals and discuss design concepts.

CityNeighborhood

Block

Case

Concept Design

Japan Team

Edible CityUK TeamAquaponic CityUSA Team

Urban Food Security

Netherlands Team

Redevelopment thorough FEW

Qatar Team

Food Infra in Arid Cities
Food Industrial Zone
in New Urban Development

Australia Team

Intensity Data(statistics, papers)

Typologizing urban forms
in GIS

Dietary tableHouseholds

by age classes

size、age

Electricity, gas, water

Buildings

by building form

structure, built years

Permeability

Landsby land use

land use and zoning

FEWprint NOW
as baseline
Needed land area
to meet the FEW demand

4. What-if and scenarios

Known trends and unknown risks are identified and adaptation scenarios are devised. Various
design proposals are created, and compared by integrating available knowledge and futuretechnologies that can respond to those scenarios at various scales. Their performances are evaluated by using the key performance indicator, FEWprint.
Transformative

7. Engaging players

8. Setting up Living Lab

9. Promotion of co-design

We will use the Living Lab as a base to discuss the design proposal in order to embody the propositions, to organize the relationships of each player involved in the supply and demand of FEW in anactor network, to quantify their roles and responsibilities in the FEWprint, and to visualize theircontribution to the SDGs and carbon neutrality.

Waterworks
Offices

Building

Electricity
Gas company
Households

Neighborhood

Technological Innovations
with functions and specs
New energy

Land areato absorb CO₂ emissions
unit area

Incremental

BAU

Green infra■

5. Design and evaluation 6. Iteration of the design process

Farms

Prediction by scenarios
FEWprint NEW
corresponding toas Key Performance Indicatorurban renewal dynamism
FEW PRINT

1. Site analysis

Existing FEW supplying
land area

BASELINE

Creating FEW supplying
land area
Land area to abosrb
emitted CO₂

Urban agriculture

2020

TIME2050■

unit area

Analysing the connectionsof actorsTransport

Market Access

Visualizing the commitmment of actors to SDGs

Supporting participation
with Tangible GIS