What You Can Do To Reduce Greenhouse Gas From Buildings

Below are some useful tips that may help you to reduce greenhouse gas emissions from buildings:

Air Conditioning

  • Avoid installing air-conditioners where they will be exposed to direct sunlight.
  • Close off areas that do not require air-conditioning, and turn air-conditioners off in unoccupied rooms.
  • Place weather strips on doors and windows to prevent the leakage of cool air.
  • Clean or replace the filters in all air-conditioners at the beginning of summer, and clean them every two weeks from then on.
  • Set the office temperature at 25.5°C in summer and fix thermometers at various office locations to regularly cross check the temperature setting.
  • Carry out regular leakage check on the air-conditioning system to check for possible leakage of refrigerants.
Air Conditioning
Air Conditioner

Saving Energy

  • Use energy-saving light bulbs.
  • Use daylight whenever possible.
  • Place your lighting carefully where you need it.
  • Use dimmers where possible (except for fluorescent lamps and compact fluorescent bulbs).
  • Use non-opaque, light-colored lampshades.
  • Keep light fixtures and lamps clean to maximize their efficiency.
  • When buying new lighting, consider choosing compact fluorescent bulbs, which use 75% less energy than standard bulbs for the same amount of illumination.
  • Switch off the lights and air-conditioning when not in use.
  • Ensure that computers are switched off before the end of a working day.
  • Make good use of the energy-saving features and options which come with the Operating System of the computers.
  • Switch off all electrical appliances or, where appropriate, switch them to the energy-saving mode when not in use.
  • Encourage the use of staircase instead of taking the lift for inter-floor traffic.
  • Use energy efficient electronic equipment as far as possible.
  • Keep track of the power consumption records and take measures to reduce the increase in power consumption.
Saving Energy

Paper Saving

  • Disseminate information by electronic means (i.e. via email or e-bulletin boards) as far as possible.
  • Set duplex printing as the default mode for most network printers.
  • Order recycled paper for office photocopying.
  • Think carefully how many copies you need and do not copy too many.
  • Use e-fax to screen junk fax.
  • Place boxes and trays beside photocopiers as containers to collect single-sided paper for reuse and used paper for recycling.
  • Encourage the staff to use paper on both sides, reuse envelopes and loose minute jackets, and use the backside of letter pads with outdated letterhead for drafting or printing.
  • For easier recycling, separate waste before disposal.
Paper Saving

Water Saving

  • Carry out regular leakage tests on concealed piping and check for overflowing tanks, waste, worn tap washers and other defects in the water supply system.
  • Fix dripping taps immediately.
  • Reduce water pressure to the lowest practical level.
  • Collect used water if possible for cooling purposes, floor cleaning and yard washing.
  • Turn off the water supply system at night and on holidays.
  • Ensure that hot water pipe runs are as short as possible and that cold water pipes are laid away from heated areas.
  • Place posters and other publicity materials in prominent places to encourage water conservation.
  • Determine water requirements for each facility and check usage frequently.
  • Use reclaimed water for non-drinking use.
Water Saving

Vehicle Maintenance

  • Keep your car properly tuned: an inefficient car will use more fuel and emit more pollutant, which will harm the environment and cost you more money.
  • Maintain correct tyre pressure by inspecting your tyres regularly and inflating them to the pressure recommended by the manufacturer.
  • Avoid sudden acceleration, because it increases fuel consumption.
  • Switch off when idling.
    Vehicle Maintenance

For more information, please visit: http://www.gov.hk/en/residents/environment/index.htm


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