HKUST Sustainability 27 Environment Social and Governance Report 2021-22 Greenhouse gas emissions in the 2021-2022 academic year have increased by 7% compared to that of the prior year. In this academic year, HKUST emitted about 36,252 metric tons of CO2 equivalent from Scope 1 and 2. All scope fields are increasing to some degree, and Scope 2 marks the highest amount of increase, which was by 7%. Such an increase happened due to an increase in electricity consumption. In this academic year, the University consumed approximately 89.6 million kWh of electricity, which is a 1.5% increase from that of the prior year. Since HKUST’s main energy consumption source is electricity, such an increase has increased our greenhouse gas emissions. Compared to the baseline year, we have saved 151,368 trees from the energy consumption reduction. Greenhouse Gases Emissions Overview in 2021-22 Pollution Economic activities have brought global challenges in the depletion of climate and environment. Increased greenhouse gas emissions have resulted in the pollution that affects the whole ecosystem. HKUST strives to reduce greenhouse gas emissions in our atmosphere and contributes to sustainability goals. We are determined to establish sustainability-related plans and mitigate our GHG emissions impact.