In September 2007, when the 19th Meeting of Parties to the
Montreal Protocol was held in Montreal, it was requested that
developing countries, including China, complete the elimination
of HCFCs by 2030. For China, the deadline was 10 years ahead of
the original scheduled phaseout date of 2040. China, like other
countries that have committed to the Montreal Protocol and the
Kyoto Protocol, finds itself faced with dual constraints. The
Montreal Protocol calls for the phaseout of CFC, HCFCs, and
other substances within specified time periods. The Kyoto
Protocol calls for the control of greenhouse gas emissions, but
without implementing compulsory methods for the production and
use of greenhouse gases. With these two restrictions in place,
how will China choose on HCFC-alternative refrigerants? HCFC
R-22 is used globally on a large scale for air-conditioning and
other refrigeration systems, and its phaseout is getting much of
the attention by the industry. HVAC industries in Japan and the
U.S. lean toward HFC alt