Taiwan has the tradition of burning fake money for the ancestors. It is a very old tradition which people tell me is a way to provide pocket money to the ancestors to carry thorough their journey. Recently the Taiwanese government has been concerned about its environmental hazards.
Innovative measures have also been taken to reduce air pollution over these three days. The government is encouraging people to burn “ghost credit cards” and “ghost checks” instead of wads of cash, and city governments are offering a free collective joss paper burning service. For the more Web-savvy, the Taipei Mortuary Services Office offers an online service for families to pay their respects online.