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
Climate change in Germany related to its high level of industrialization include the destruction of infrastructure from extreme weather events, loss of water for industrial purposes, and fluctuation of the ground water level. Since these problems are related to its level of industrialization, cities within other regions are also sensitive to these challenges including Munich and Bremen. Germany has taken steps to address anthropogenic climate change since the mid 1980's, starting with their participation in the international negotiations of the Montreal Protocol. The Montreal Protocol, alongside the Chernobyl nuclear disaster, acted as focusing events for German public in 1986 and subsequently pushed the environment