How Practical Green Meeting Can Reduced Carbon Footprint and Contributed Green University ? †

The major activity produced waste in university was generated by meetings in various types of food packaging for break and lunch box, especially in the context of Suan Sunandha Rajabhat University, Thailand. Therefore, this research aimed to (1) identify waste characteristics from packaging of coffee brake and lunch box in the general meeting, (2) studied carbon footprint emission from general meeting and green meeting and (3) estimated Greenhouse Gases (GHGs) reduction from green meeting in the university at the Faculty of Science and Technology, Suan Sunandha Rajabhat University, Thailand. The data was conducted for 3 months and arranged 3 times for green meetings and general meetings. The results of waste characteristics from packaging showed that in one set box of coffee brake contained kraft paper (paper box), plastics bag, stencil paper, aluminium sheet, tissue paper, and plastic bottle (PET). In general meeting, GHGs emission equal 1.6 KgeCO2/person/meeting whereas for green meeting GHGs emission was only 0.94 KgeCO2. Overall of GHGs reduction from green meeting calculated from arrangement of meeting once a week, and in 1 year GHGs can be reduced 34.32 KgeCO2 per person.


Introduction
In order to enhance green university concept, waste characterization study is a critical first step in successful waste management planning and sustainability mitigation [1].The most important factors that contribute towards achieving green university's goal and developed factors into 7 categories, i.e., management systems, environmental sustainability, sustainable curricula, research and development, staff development and rewards, student opportunities, and social responsibility.Therefore, the educational sector particularly the higher education sector must play increasingly active roles to help society to achieve the strategic sustainable development goal.Especially, in China the educational sector is the largest public sector energy consumer.Approximately 40% of the energy consumption of the public sector and the energy consumption per students is four times that other Chinese residents [2].
Green meetings was purposed by businesses to sustainable development (Thailand Business Council for Sustainable Development: TBCSD) with the Thailand Environment Institute in order to foster resource efficiency and reduce environmental impact.Therefore, green meeting is the theme of seminar training with regard to the use of resources to maximize and minimize environmental impact and will concern in the various stages of the meeting.
Faculty of Science and technology, Suan Sunandha Rajabhat University (SciSSRU) awares the importance of reducing greenhouse gas emissions within the organization.SciSSRU has joined as a part of the green office of the Department of Environmental Quality and certified the Green Meeting (silver award) since 2014.Apiratikul [3] studied electricity and water supply consumption of the Dean's Office of SciSSRU and noted that electrical consumption had decreased significantly in 2015 compared to the year 2014 and this resulted in the decreasing of total GHGs in 2015.
In addition, SciSSRU has participated as one of the organizations leading the green meeting to reduce greenhouse gases, reduce the use of electricity, paper, etc., which are an important part in reducing greenhouse gas emissions.Consequently, this study was focused on (1) identify waste characteristics from packaging of coffee brake and lunch box in the general meeting, (2) studied carbon footprint emission from general meeting and green meeting, and (3) estimated Greenhouse Gases (GHGs) reduction from green meeting in the university.

Data Collection
(1) Determine the primary area for arrange the meeting of SciSSRU, which has two meeting rooms.The first one is room 26101 represents for the faculty's committee meeting approximately 40 persons.The second room is room 26108 represents the faculty's board meeting approximately 10 persons.
(2) Conduct data of resources consumption between two meeting rooms which are composed of similar activity.Data collection were divided into five criteria of activity which are: invitation documents, preparation of documents for the meeting, preparation of location and device, preparation of food and beverages, and preparation other relate issues (3) Compare and calculate GHGs emission between green meeting and normal meeting rooms.

Results
The results of this study were classified five activities criteria of the meetings.According to the format of the green meeting of Thailand Business Council for Sustainable Development (TBCS).Comparison of regular and green meeting's carbon footprint also presented in Tables 1 and 2.  1, the results showed that, comparison of GHGs emission of the meeting room 26101 between regular and Green Meeting by calculation of greenhouse gas emissions.In general meeting, one person is generated 1.6 kg of carbon dioxide emissions per tonne of carbon dioxide and total of GHGs emission was 19.1979 per meeting.While, the greenhouse gas emissions from green meeting Green Meeting per person was 0.94 kg of carbon dioxide emissions per tonne of carbon dioxide and total of GHGs emissions was 11.3261 per meeting.The results from Table 2 revealed that, comparison of GHGs emission of the meeting room 26108 between regular meeting and green meeting by calculation of greenhouse gas emissions.In general meeting, one person generated 3.2444 kg of carbon dioxide emissions per tonne of carbon dioxide and total of GHGs emission was 97.3325 per meeting.
While, the greenhouse gas emissions from green meeting Green Meeting per person was 3.1593 kg of carbon dioxide emissions per tonne of carbon dioxide and total of GHGs emissions was 72.6646 per meeting.

Conclusions
For regular meeting of room 26101, all 12 people spent 200 min meeting and generated greenhouse gases 19.1979 kilograms of carbon dioxide per meeting or 1.6 kg of carbon dioxide emissions per person.While, green meeting of room 26101 rooms spent 208 min meeting with the release of greenhouse gases 11.3261 kilograms of carbon dioxide per meeting or 0.94 kg of carbon dioxide emissions per person.
In comparison, the green meeting can reduce the carbon footprint by up to 7.8718 kg of carbon dioxide per meeting within three hours and 20 min of the two meetings.The difference activities among two type of meeting was green meeting changed the way to cut off packaging of food and beverages from plastic bottle to a glass of water and serving dish lunch instead of cardboard and plastic boxes.Snacks are also served on a plate.The leftover food waste of a Green Meeting was less than regular meeting and this could be a majority source of greenhouse gases reduction, as well.
The most reasonable activity that reduced GHGs emission is due to paper usage and consumption in the green meeting was lower than the general meeting.Reducing redundant packaging by practical green meeting is the key to reduced waste and carbon footprint emission in the university.

Suggestions
(1) Reduce over packaging is an appropriate way to reduce paper, plastic, cardboard and to reduce resource consumption.
(2) Prepare the meeting venue and should be completed before the conference began, about 10 min to prepare.It can help reduce electricity consumption in each meeting.
(3) Spend less time for meeting will also reduce GHGs emission from electricity consumed.(4) Should arrange training to educate staff and stakeholders to realize greenhouse gas reductions that took place in the meeting room and mitigation to develop green meeting in routine meeting.

Table 1 .
Comparison of regular and green meeting's carbon footprint of room 26101.

Table 2 .
Comparison of regular and green meeting's carbon footprint for room 26108.