**Sustainable development is a Global Challenge**

Sustainable development refers to the concept of meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. It encompasses economic, social, and environmental aspects of development, aiming to ensure a balance between these three pillars. Achieving sustainability in development is a global challenge as it requires collective efforts from different countries around the world.

**Countries aiming to achieve sustainability in development**

Numerous countries are actively working towards achieving sustainability in development through various initiatives and policies. Here are some examples:

1. **Sweden**: Sweden is well-known for its commitment to sustainability. The country has set a goal to become the world's first fossil fuel-free nation. It has implemented policies to promote renewable energy, energy-efficient buildings, and sustainable transportation systems.

2. **Germany**: Germany is another country at the forefront of sustainable development. It has made significant investments in renewable energy sources such as wind and solar power. Germany also has strict environmental regulations and promotes sustainable practices in industries and agriculture.

3. **Costa Rica**: Costa Rica is recognized as a leader in environmental conservation and sustainable development. The country has set a goal to become carbon-neutral by 2050. It has implemented initiatives to protect its biodiversity, promote renewable energy, and encourage sustainable tourism.

4. **China**: Despite being a major contributor to global carbon emissions, China has taken significant steps towards sustainable development. The country has invested heavily in renewable energy, particularly in solar and wind power. China is also implementing policies to reduce air and water pollution and promote sustainable urbanization.

5. **Bhutan**: Bhutan has adopted a unique approach to sustainable development by prioritizing Gross National Happiness (GNH) over GDP. The country focuses on holistic well-being, environmental conservation, and sustainable economic growth. Bhutan is carbon-negative and aims to maintain at least 60% forest cover.

**Conclusion**
Sustainable development is indeed a global challenge that requires collaboration and commitment from different countries. The examples mentioned above demonstrate the diverse approaches and initiatives taken by various nations to achieve sustainability in development. By sharing knowledge, resources, and best practices, countries can work together towards a more sustainable future for the planet and its inhabitants.