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Chapter Seven Regional Studies on Climate Change Response

the market, while those exceeding their quotas must purchase additional allowances or face
substantial fines. This market mechanism has effectively incentivized corporate emission
reduction efforts, prompting companies to increase investments in energy conservation and
emission reductiontechnologiesin research, development, and application, driving green
industrial transformation. In the energy sector, the EU has introduced the “Renewable Energy
Directive,” setting binding targets for the share of renewable energy in member states’
total energy consumption. It requires the EU as a whole to achieve 20% renewable energy
by 2020 and further increase this to 32% by 2030. Based on these requirements, member
states formulate their national renewable energy development plans. Through implementing
subsidy policies, preferential electricity pricing, and other measures, they vigorously
promote the development and utilization of renewable energy sources such as solar, wind,
and hydropower. This optimizes the energy structure, reduces dependence on fossil fuels,
and fundamentally lowers greenhouse gas emissions at the source.
Japan has also established a relatively comprehensive legal and institutional framework
to address climate change. The *Basic Environment Law of Japan* serves as the foundation-
al legislation, providing guiding principles and frameworks for other specialized environ-
mental laws. In the field of climate change mitigation, Japan enacted the *Act on Promotion
of Global Warming Countermeasures*, which clarifies the responsibilities and obligations of
the national government, local public entities, businesses, and citizens in addressing climate
change. This law mandates the government to set greenhouse gas emission reduction targets
and implement relevant policies to achieve these goals. Under this legislation, the Japanese
government has formulated specific emission reduction policies, such as the **Top Runner
Program**. This program establishes energy efficiency standards for various energy-con-
suming products, requiring manufacturers to meet or exceed these standards, thereby driving
continuous improvements in product energy efficiency and reduced energy consumption. In
the construction sector, Japan has implemented stringent building energy conservation regu-
lations, specifying clear energy efficiency requirements for insulation performance, lighting
systems, and air conditioning systems in new buildings, promoting energy conservation and
emission reduction in the industry.
The legal and institutional frameworks for addressing climate change established by
developed countries have played a significant role in regulating social behavior and pro-
moting the achievement of emission reduction targets. Through the binding force of law,
these frameworks clarify the rights and obligations of various entities in combating climate
change, constrain high-emission behaviors of enterprises and individuals, and guide the al-
location of social resources toward low-carbon sectors. Institutional designs such as carbon
emission trading systems and renewable energy development mechanisms leverage market
mechanisms and policy guidance to stimulate proactive participation in emission reduction,
drive technological innovation and industrial upgrading, and provide strong guarantees for
achieving emission reduction goals. However, these legal and institutional frameworks also

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