The Covid-19 pandemic is impacting entire countries. One of them is having an impact on CO2 emissions in Indonesia and Japan. The research project is focused on the use of transportation and electricity by Japanese Literature students of BINUS and Wakayama University Japan students before and during the pandemic. Concepts and methodologies, looking at the situation before and during a pandemic, using quantitative methods and approaches based on carbon footprint analysis. This study provides results showing that the use of electronics and transportation which has CO2 emissions is drastically reduced both in Indonesia and in Japan. However, Japan has higher CO2 emissions when compared to Indonesia which is influenced by certain factors, such as transportation mileage.

In recent years, food waste has become a global issue that often becomes the subject of public debate and has already been put into the SDGs programs which are targeted to be realized in 2030. A large amount of food waste is produced in the food service and infrastructure sectors, especially during this pandemic, which makes the foodservice sector difficult. However, this study compares and identifies students’ awareness of food waste in Indonesia and Japan. The data were primarily gathered through a questionnaire with 100 students in each country. This study uses the comparative concept to compare the results of research before and during the pandemic on students. Based on the results, this study discusses the extent to which students are aware of the behavior of leaving food, checking the expiration date, knowledge about food waste. Both Indonesian and Japanese students become more aware of the food waste that occurred.

Indonesian is the word order of SVO. The limitative expression in Indonesian generally functions as an adverb in the sentence. Adverbs to express limitative expression in Indonesian are classified in some variations. In this paper, the researcher clarified the structure and meaning of limitative expression saja in Indonesian. Referring to the term used by Alwi (1998), Sneddon (2000) and Chaer (2009), saja appears to the right of nouns and verbs. Sneddon (2006) uses the word ‘limiter’ to show the meaning of saja. The research methodology used descriptive using actual data. Data analysis was conducted using theory, as stated by Alwi (1998), Sneddon (2000, 2006), and Chaer (2009). When translated into Japanese, the meaning of saja can be converted into various particles. The definition of each of the particles that express the limitation is considered based on the theory of Sawada (2007), Numata (2009), and Nitta (2009). The results of the research are, saja can be classified into five categories; there are uniqueness, multiplicity, continuity, the minimum limit, and extremity. In Japanese, each meaning can be translated into toritatejoshi dake, bakari, and sae.

This research aimed to introduce a corpus to Indonesian to improve the sustainability of research in the field of language. In English and Japanese study, language research had been highly developed because the existence of a linguistic corpus supports it. For example, in Japanese, the corpus was managed by an organization called NINJAL (National Institute for Japanese Language and Linguistics), where the corpus could be accessed free or paid. This research method was a literature review. It is found that for the sustainability of research in Indonesia, the existence of a corpus is very much needed. It is better if the corpus in Indonesia is created and managed by an organization and can be accessed free or paid for researchers who want to research Indonesian in more detail.