Green development refers to a sustainable approach to economic growth and development that prioritizes environmental protection, social equity, and economic progress. It involves promoting clean energy, reducing carbon emissions, preserving natural resources, and adopting eco-friendly practices.

Several countries have embraced green development as a way to tackle climate change and promote sustainable development. Here are some examples:

1. Denmark: Denmark is often cited as a leader in green development, with a goal of becoming a carbon-neutral country by 2050. The country has invested heavily in wind energy and has one of the world's largest wind turbine industries.
2. Germany: Germany is committed to transitioning to a low-carbon economy and is phasing out its nuclear power plants. The country has also invested heavily in renewable energy, particularly solar power.
3. Costa Rica: Costa Rica is a leader in environmental protection, with over 25% of its land protected as national parks and reserves. The country has set a goal of becoming carbon neutral by 2050 and has made significant progress towards achieving this goal.
4. China: China has become a major player in the global push for green development, investing heavily in renewable energy and electric vehicles. The country has set a goal of reaching peak carbon emissions by 2030 and becoming carbon neutral by 2060.
5. Bhutan: Bhutan is often cited as a leader in sustainable development, with a commitment to "gross national happiness" over economic growth. The country has set a goal of remaining carbon neutral and maintaining at least 60% forest cover.