Climate change in Japan and Toyota hybrid electric vehicles were named to have the highest fuel efficiency and lowest emissions. The fuel economy and emissions decrease is due to the advanced technology in hybrid systems, biofuels, use of lighter weight material and better engineering. As a signatory of the Kyoto Protocol, and host of the 1997 conference which created it, Japan is under treaty obligations to reduce its carbon dioxide emissions and to take other steps related to curbing climate change. The Cool Biz campaign introduced under former Prime Minister Junichiro Koizumi was targeted at reducing energy use through the reduction of air conditioning
Tarawa Climate Change Conference parties to the COP process, explore elements of agreement between the parties and thereby to support Kiribati's and other parties' contribution to COP16 to be held in Cancun, Mexico, from 29 November to 10 December 2010. The Ambo declaration was adopted at the Tarawa Climate Change Conference on 10 November 2010 by Australia, Brazil, China, Cuba, Fiji, Japan, Kiribati, Maldives, Marshall Islands, New Zealand, Solomon Islands and Tonga. The declaration calls for more and immediate action to be undertaken to address the causes and adverse impacts of climate change. The United States, the United Kingdom and Canada, who also attended