It is often decided by national governments - for example the climate policy of China.
It may include policy on reducing greenhouse gas emissions to limit climate change, and also adapting to climate change.
[3] Climate policies may have very big co-benefits for health policy such as by: reducing air pollution, increasing walking and cycling, and eating less beef; they may also help energy policy by reducing oil imports.
[4] Public support for policies depends on: how effective people think they are in reducing emissions, their impact on poor people, their effect on respondents’ households, and how well they understand them.
[6] Policy, such as target dates for net-zero emissions, may be put into law.