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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Hacking for Sustainable Food</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Jorge Luis Zapico</string-name>
          <email>zapico@kth.se</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>KTH Centre for Sustainable Communications, Stockholm, Sweden Linnaeus University</institution>
          ,
          <addr-line>Växjö</addr-line>
          ,
          <country country="SE">Sweden ! ! !</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>- The ICT4S Green Hackathon was an event exploring the use of information and communications technologies in sustainable food production and consumption, where developers, designer and problem owners met for creating prototypes and applications for a whole day. This article presents the concept, implementation, results and lessons learned from this event.</p>
      </abstract>
      <kwd-group>
        <kwd>hackathon</kwd>
        <kwd>food</kwd>
        <kwd>sustainability</kwd>
        <kwd>sustainable HCI</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>I. INTRODUCTION</title>
      <p>A hackathon is a portmanteau of “hack” and “marathon”,
an event to hack for an extended amount of time. In these
events, enthusiasts meet and work with software and/or
hardware projects for a limited but long period of time, e.g. 24
hours without rest. The reference to “hack” is not to hacking as
in computer crime [1], but to the hacker ethic [2], which
defines a hacker as someone who "programs enthusiastically",
who believes that computing and information sharing is a
positive good and who believes it is an ethical duty to facilitate
access to computers and computing resources [3,4,5].</p>
      <p>These events have gained popularity in later years and
many hackathons are organised both by companies and other
organisations. Some are focused around a technology or
application (like Facebook [6] or Linux [7]), while other events
focus around a specific problem area or topic (like Random
hacks of kindness [8] or Hack for Sweden [9]). A key idea of
these events is a hands-on approach, focusing on producing
workable functionality, prototypes or applications at the end of
the event. Many times there can be a competition component,
where the results are presented at the end of the event, winners
are selected and prizes may be distributed. The focus of the
event in the prizes and competition can vary between different
hackathons, in some the prizes the main driving force while in
others the competition is only symbolic.</p>
      <p>
        Green Hackathon is a series of hackathons that started in
Stockholm in 2011 focusing on using information and
communication technologies (ICT) with a sustainability
purpose [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ]. After the first event in 2011 there has been a
number of Green Hackathons and associated events organised
in different cities, e.g. in London, Helsinki, Berlin, Athens,
Zürich, Fukushima, and a coming one in Tokyo. These events
have been sometimes organised with help of the original
organisers and other times independently by local groups, but
the events shared the common concept umbrella, graphic
profile and name. The main restrictions of a Green Hackathon
is that the results created need to focus on sustainability, and
for the most part involving some kind of ICT solution. There is
      </p>
      <p>The Green Hackathon was financed by the Vinnova
Excellence Centre for Sustainable Communications, with
support from COOP Sweden.
also a de-facto focus on developing, meaning that the results
cannot be only a neat idea in a powerpoint, and code and
working prototypes are more highly valued. This is part of the
aforementioned hands-on approach which is central in the
hacker ethic [3].</p>
      <p>
        During the ICT4S 2014 conference, a Green Hackathon
was organised as a workshop activity the 23rd of August,
located at R1, a dismantled experimental nuclear reactor
underground at KTH in Stockholm. This time the event was
focused on sustainable food production and consumption, and
organised by the Centre for Sustainable Communications at
KTH, as part of the project From Data to Sustainable Practices,
in collaboration with COOP Sweden and supported by OKFN
Sweden &amp; Open Sustainability WG [
        <xref ref-type="bibr" rid="ref11">11</xref>
        ].
      </p>
      <p>Fig 1.Picture of the Green Hackathon</p>
      <p>This text documents the concepts and ideas behind this
Green Hackathon and its results, and it will present and discuss
some of the lessons learned from the event.</p>
    </sec>
    <sec id="sec-2">
      <title>II. FOOD, SUSTAINABILITY &amp; ICT</title>
      <p>The focus of this hackathon on food was due to several
reasons, but the main motivation was that while food
production and consumption is one of our main environmental
impacts, in previous Green Hackathon the focus has been
mostly in energy (electricity, transportation, etc), while food
has been for the most part neglected.</p>
      <p>
        Food production and consumption have become a major
driver behind environmental degradation, such as climate
change, biodiversity loss and degradation of land and
freshwater. According to Foley et al [
        <xref ref-type="bibr" rid="ref12">12</xref>
        ] agriculture must be
transformed to be sustainable and must deliver sufficient
amounts of food for the growing population (both through
increased efficiency and dietary changes) and also cut
greenhouse gas emissions by at least 80%; counteract
biodiversity loss; reduce water use and phase out pollution
from agricultural chemicals.
      </p>
      <p>
        The research area of ICT4S and sustainable HCI has
focused mostly on electricity and energy, but there is a growing
interest in the area of sustainable food [
        <xref ref-type="bibr" rid="ref13 ref14">13,14</xref>
        ]. For instance,
researchers have been looking at the possibilities of increasing
sustainability by using technology to help changing users food
behaviour, wanting to close the intention-behavior gap existing
between the attitudes and values around sustainable food
consumption and the actual consumption practices [
        <xref ref-type="bibr" rid="ref15">15</xref>
        ].
Examples of efforts include using technology for visualising
the carbon footprint of food [
        <xref ref-type="bibr" rid="ref16">16</xref>
        ] and food-miles [
        <xref ref-type="bibr" rid="ref17">17</xref>
        ]. An
especially interesting topic of research is the reduction of food
waste in households, as it is estimated that around one third of
food produced is thrown away [
        <xref ref-type="bibr" rid="ref18">18</xref>
        ]. ICT has been used as a
way of making this waste visible. Ganglbauer et al [
        <xref ref-type="bibr" rid="ref19">19</xref>
        ] created
an intervention where a camera was installed in the fridge in
different households to record food use and stimulate
reflection. Thieme et al [
        <xref ref-type="bibr" rid="ref20">20</xref>
        ] present a study on an augmented
waste bin that takes pictures of the waste disposed and upload
them to an application to motivate reflection on the users waste
practices. Farr-Wharton et al [
        <xref ref-type="bibr" rid="ref21">21</xref>
        ] present a prototype that aims
to reduce food waste by increasing the knowledge and
awareness of the existing food stock at home.
      </p>
    </sec>
    <sec id="sec-3">
      <title>III. THE HACKATHON</title>
      <p>Based on this background and existing applications, the
idea of this hackathon was to explore new ways of using ICT to
mitigate the problems and find new solutions. The hackathon
had two main rules for the results:
• To use information and communication technologies.
• In the topic of food and sustainability.</p>
      <p>Some more concrete topics were provided as inspiration:
• Using technologies for helping farmers with organic
growing practices.</p>
      <p>• Promote more sustainable food practices (organic, local,
seasonal, vegetable-based..)</p>
      <p>• Communication of added value of organic food, creating
connection between food producers and consumers.</p>
      <p>• Use of new technologies for interventions at
supermarkets promoting more sustainable food practices.</p>
      <p>• Reduce food waste (both at homes and in supermarkets
and supply chain)</p>
      <p>• Calculating and communicating environmental impacts
of food products.</p>
      <p>A main value of a hackathon is the focus on developing, and in
most cases in coding. In this hackathon we wanted to broaden
participation and have also space for more design prototypes,
without losing the focus on creating prototypes and going
beyond discussing ideas. Four types of results were suggested:
• Software tools, such as a website, mobile application,
visualisation, etc.
• Hardware applications, such as Arduino based electronics.
• Tangible design prototypes, that demonstrated a use of
technology in a physical context.
• Stories and new knowledge, gained from the collection and
visualisation of data (data journalism).</p>
      <p>The event was a one-day activity, starting in the morning
with a keynote and the presentation of the event. Afterwards
there was an exercise for networking, where the participants
did a round of “speed-dating”, introducing themselves and
discussing possible ideas. Then the participants could pitch
hack ideas and based on these pitches they grouped themselves
into different teams. This hackathon was different than
previous ones in that most of the participants had not a clear
idea of what to develop nor were part of an existing group, so
the networking process was very active. The hackathon had 23
participants, 5 women and 18 men, from diverse (mostly
european) countries. Roughly around half of the participants
were part of the ICT4S conference and working as researchers,
while the rest were coming mostly from the local community
of designers and developers.</p>
      <p>Fig 2. Team working during the hackathon.</p>
      <p>After the groups were formed, they moved to the sitting
areas to keep developing the ideas and start working in
practice. The “hacking” time was around eight hours. This time
was shorter than in previous hackathons, for instance the
original Green Hackathon ran for 24hours.</p>
      <p>After the hack time was over, the groups presented the
results to the public. There were five projects that finished the
hackathon. The jury that decided the winners was formed by:
•
•
•
•</p>
      <p>Louise König, Sustainability Manager at The
Cooperative Group Sweden, COOP</p>
    </sec>
    <sec id="sec-4">
      <title>Marko Turpeinen , Director, EIT ICT Labs Finland Patricia Lago, Associate professor in software, services and sustanability, VU University Amsterdam Maja Brisvall. Manager, Stockholm Resilience Centre</title>
    </sec>
    <sec id="sec-5">
      <title>IV. THE RESULTS</title>
      <sec id="sec-5-1">
        <title>A. Eat Exchange</title>
        <p>There were five final projects that were presented in the
Hackathon:</p>
        <p>The first winner was Eat Exchange, a mobile application
which allows a local community to share food that would have
been wasted. The application idea is to enable individuals to
advertise the food that they wouldn’t be able to consume. Then
the supply of spare food would be collected by the members of
the community who would otherwise need to buy it.
The prototype was created by: Sotiris Salloumis, Gaye
Georgia, Johan Zetterquist, Jacky Bourgeois, Sophie Uesson,
John Chang.</p>
      </sec>
      <sec id="sec-5-2">
        <title>C. Urban Fruit Initiative App</title>
        <p>A web interface for urban fruit initiative, an existing project
which connects homeowners with apple trees with pickers
willing to pick apples, and produces apple juice which then
gets distributed between the different stakeholders.</p>
        <p>Fig 3. Screenshot of Eat Exchange.</p>
        <p>The prototype was a combination of mobile app mockup
and a live test using jQuery, HTML and CSS. Created by:
Christopher Weeks,Daniel Schien, Pernilla Hagbert, Friedrich
Chasin, Ole Schultz, Tipa Stefan,Theodorou
SophyEmmanouela.</p>
      </sec>
      <sec id="sec-5-3">
        <title>B. Last Minute Food</title>
        <p>The second winner is a prototype application that proposes
gathering information from COOP supermarkets about the food
that is about to expire and allows the users to explore recipes
based on those ingredients and facilitates the purchase in the
store.</p>
        <p>Fig 4. Screenshot of Last Minute Food.</p>
        <p>The mockup mobile application presented different
functionality, including a way to navigate the store using voice.</p>
        <p>Fig 5. Screenshot of Urban Fruit Initiative.</p>
        <p>The prototype provides an easier way to register and broker
the connection between the two groups, allowing the
registration of new tree owners and fruit pickers and providing
a map interface.</p>
        <p>Fig 6. Screenshot of the map interface.</p>
        <p>The prototype is open source and made using Firebase,
Bootstrap, jQuery and Google Maps API. Made by: Richard
Blume, Mrhetab Kidane, Andrew Kobylin.</p>
      </sec>
      <sec id="sec-5-4">
        <title>D. Cosecha</title>
        <p>Made by the author and outside of competition, Cosecha is
a planning tool to calculate the amount of different crops to
grow in a given field connected to yield and revenue. The idea
is to be able to calculate the need for seed purchases
(rowmeter) based on production goals (kilograms of produce and
earning)</p>
        <p>The prototype was made using jQuery and HTML by: Jorge
Zapico</p>
        <p>Fig 7. Screenshot of Cosecha.</p>
        <p>!</p>
      </sec>
      <sec id="sec-5-5">
        <title>E. Eat Seasonably</title>
        <p>A web prototype application which try to tackle the the gap
in consumer awareness by recommending recipes based on
seasonality.</p>
        <p>Fig 8. Screenshot of SSH team.</p>
        <p>Made by: Sevag Balkorkian, Samuel Chinenyeze, Haftom
Tesfay</p>
      </sec>
    </sec>
    <sec id="sec-6">
      <title>V. CONCLUSIONS AND DISCUSSION</title>
      <p>The ICT4S Green Hackathon explored the use of ICT for
sustainable food consumption and production. Participants
spent eight hours developing prototypes and bringing ideas
forward into more concrete form. This short deadline with a
limited, but uninterrupted, amount of time is instrumental in
the productivity of the hackathons. The quality of the
prototypes produced in hackathons can be considered quite
high for this short amount of time, as the results above show,
even in this event where the time was much shorter than in
previous hackathons.</p>
      <p>
        A main theme that emerged from the hackathon was food
waste. In the keynote it was mentioned that a third or more of
the food produced worldwide ends up as waste [
        <xref ref-type="bibr" rid="ref18">18</xref>
        ], this
challenge was taken up by the participants and three of the five
contributions focused on how to reduce food waste. Eat
Exchange explored how mobile technology could connect the
local community to share resources that would otherwise be
wasted; Last Minute Food explored how supermarkets could
market food that is close to expiration data and in risk of being
thrown away; Urban Fruit Initiative looked at how IT can
empower local initiative that connect people with extra fruit
with pickers so the fruit does not go to waste. This focus in
food waste is in line with the existing projects in the
sustainable HCI community presented before, and maybe a
natural low-hanging fruit for increasing sustainability of the
food system.
      </p>
      <p>
        One intention when planning this event was to broaden
participation to better include skills outside programming and
developing [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ]. This was successful as the event attracted a
broad range of participants, and the teams had mostly a balance
between technical competence and design competence. There
was many of interesting conversations and brainstorming and
good team dynamics.
      </p>
      <p>Fig 9. A team discussing during the event.</p>
      <p>On the other hand, the results were all mobile applications
or website, which has been the standard also in the rest of the
previous hackathons. In this hackathon we tried to explicitly
open up for other contributions such as data journalism,
tangible design prototypes and hardware-based hacks. It can be
argued that only “allowing” these type of contributions is not
enough. Web and mobile prototypes are easier to work at a
hackathon scale, as there are many off-the-shelve solutions to
facilitate development, allowing faster creation of working
prototypes. For promoting other type of results such as physical
design prototypes or hardware tests, a more proactive approach
should be taken, facilitating workshop materials and
components from the organisation side, to provide affordances
and but also to inspire.</p>
      <p>The use of ICT for promoting sustainability in food
production and consumption can be an interesting topic for
research for ICT4S. This topic has not been as widely explored
as other areas such as electricity and energy consumption.
Hackathons events can be a good way of generating and testing
ideas, as it can be seen from the presented event, creating
prototypes as proof of concepts that could be developed further
as applications or in research projects after the hackathons.
!</p>
    </sec>
    <sec id="sec-7">
      <title>ACKNOWLEDGMENT</title>
      <p>Thanks to Christine Ambell for the help in organising and
running the event, Louise König at COOP for her support,
Hannes Ebner cofounder of the Green Hacktahon initiative,
and the rest of colleagues at KTH that were involved in the
process. Thanks also to the members of the jury and specially
thanks to all the participants of the Green Hackathon who
worked hard during the event.</p>
    </sec>
  </body>
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