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
Oceanic climate steppe-like ("BSk") or even desert-like ("BWk") scarcity of precipitation. This climate is found on the Asian mainland in mountainous areas of the tropics, such as the foothills of the Himalayas and south-west China. Within Japan, the port city of Muroran is the only part of Hokkaido with an oceanic climate. Parts of the northeastern coast of Honshu, from Mutsu, Aomori towards Miyako, Iwate, also feature this climate. Île Amsterdam and Île Saint-Paul, both part of the French Southern and Antarctic Lands, are located in the subtropics and have an oceanic climate (akin to Tristan da Cunha; see above). The subtropical