The Convocation is committed to promoting environmental protection. To support the sustainability efforts of our alma mater and to enhance the eco-consciousness of fellow alumni and students, a list of green tips will be updated regularly in this space. Be creative and we can make our world greener and sustainable! You are also welcome to share you eco-ideas with the CityU community. Click here to share your green tips!

• Safe precious water. Don't leave your cup of tea/water undrunk. Drink your full cup of tea/water when you go yum-cha. Don't refill your cup or kettle of tea /water if you are not going to consume it all.
  珍惜水資源，當你往飲茶、晚飯、飲宴時，飲盡每杯水/茶/飲料
  (Special thanks to alumnus William for sharing the green tip)
   
• Try to maintain a steady speed all the time on the roads, and avoid sudden acceleration or hard braking.
  盡量保持一個穩定的速度，避免突然加速或剎車
   
• Do not drive unnecessarily fast. The faster you drive on the highway, the lower your fuel efficiency especially for speeds over 90 km/h
  如非必要，請不要快速行車，在路上行車速度超過 90公里的時侯，將會減低燃料的效率
   
• When starting the engine, do not press the accelerator as this just wastes fuel unnecessarily
  當發動汽車時不要加速至最大，減少浪費不必要的燃料
   
• Prevent to have haircut in salon. Parents may have haircuts for their children. Ladies may try to keep short hair for decreasing the consumption of shampoo and conditioner
  減少在髮廊理髮，父母可以替子女在家中理髮，女士們盡量選擇短髮以減少洗髮水及護髮素的消耗
  (Special thanks to alumna Eliza for sharing the green tip)
   
• Plan your routes and check the traffic conditions before setting off on your journey, as this will help avoid traffic congestion and unnecessary extra mileage
  計劃好路線及檢查交通情況，有助於避免交通擠塞及不必要的額外路程
   
• Drive a vehicle only when there is a real need; always consider using public transport first
  駕駛車輛時先考慮實際需要，優先考慮使用公共交通工具
   
• When organic food is available, choose it to lessen the harm caused by chemical pesticides and fertilisers to both the environment and your health
  購買有機食品，可減少化學農藥和肥料對環境和身體的傷害
   
• Donate unwanted gifts to needies through charitable organizations
  將不適用的禮物送給慈善團體，轉送給有需要的人
   
• Use soap for shower. Avoid using bottled shower gel to avoid wastage on packaging
  使用肥皂洗澡，避免使用沐浴露以減少包裝上的浪費
  (Special thanks to alumna Alice for sharing the green tip)
   
• Store holiday decorations, such as plastic Christmas trees and ornaments for reuse in the following year. Good quality decorations could be reused many times
  把聖誕樹及聖誕裝飾等可再用的飾物留下，備翌年再用。品質較佳的飾物可以用上很多年
   
• Send electronic greeting messages instead of paper greeting cards as the former can deliver the same message with less resource
  以電子賀咭代替傳統紙製賀咭，既環保，又能表達心意
   
• Minimise your purchases of products such as aerosol sprays that contain ozone depleting substances
  減少使用含破壞臭氧層物質的噴霧劑
   
• Choose clothes made of materials which do not crease easily, thus less energy is consumed for ironing
  多選購不易皺物料造的衣物，可節省熨衣物耗用的能源
   
• Choose clothes that are made of non-bleached materials because waste water generated from the bleaching process affects the marine ecology
  多選購未經漂染物料造的衣物，可避免漂染過程產生的污水影響海洋生態
   
• Avoid using disposable tableware and containers when providing food and drinks
  提供食物和飲料時，避免使用一次性餐具和容器
   
• Take a shower instead of bathing in a bathtub
  減少浸浴，選擇花灑洗澡
   
• Make good use of the used item, re-use it rather than putting them into recycling boxes
  妥善使用物品，放進回收箱前應循環再用
  (Special thanks to alumna Jacqueline for sharing the green tip)
   
• Use souvenirs made from recycled materials
  使用由循環再造物料製成的紀念品
   
• Use durable materials and flexible designs for production of posters, banners and signs. To facilitate the reuse of items for other occasions, avoid having the dates of events inscribed on items
  使用耐用材料和靈活設計去製作海報、橫幅廣告和標誌。為了方便重複使用於其他場合，避免把活動日期印刷在物件上
   
• Recycle paper after both sides are used
  回收用過的紙張
   
• Use paper wisely. Use electronic systems, such as email to issue invitation letters, notices, newsletters, etc
  明智地使用紙張，利用電子系統，如電子郵件發出邀請函，通知，簡報等
   
• If bottled water is unavoidable, buy water in biodegradable bottles and ensure the bottles will be recycled
  如在無可避免下提供樽裝水，請選用可藉由微生物分解的水樽及確保水樽會循環再用
   
• Choose paper of recycled materials and use environmental friendly ink to print brochures, promotional leaflets, publications, etc
  選擇使用回收材料製作的紙張和使用環保油墨印刷小冊子，宣傳單張，出版物等
   
• Reduce or avoid using excessive packing materials and decorations
  簡約包裝，減少使用禮物包裝，避免浪費資源
   
• Keep the room temperature at 25.5 C. Electricity consumption is lowed by 1.5% for every degree Celsius increase in the thermostat
  把室溫保持25.5C，原來每調高1度空調，一年可以節省1.5%耗電量
   
• Make sure your electrical appliances are switched off, instead of just being in standby mode, when you leave the room. This will keep your electricity consumption lower
  把不用的電器電源關上，比起設於備用狀態更加省電
   
• Plan food needs carefully to avoid unnecessary good waste
  舉行聚會時，盡量計劃預備適當的食物份量，避免浪費食物
   
• Support local organic produce and eat seasonal produce as it helps reduce carbon emissions during transportation
  支持本地有機農業，不時不食，以減少運輸產生的碳排放

References:

• CityU student wins Samsung creative green competition with energy-saving system
• 城大生妙計促垃圾分類
• WWF Earth Hour 2014
• Will natural gas solve China’s energy needs?
• Dances with the Green - An Art Exhibition on the Northeastern New Territories
• Measuring our carbon footprint
• Campus Development and Facilities Office of CityU (CDFO)
• Environmental Protection Department
• Friends of the Earth (HK)
• World Wildlife Fund (WWF) Hong Kong