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Subject
- Water harvesting[remove]3
- Community gardens2
- Farmers' markets2
- Parks2
- Renewable energy sources2
- Air--Pollution1
- Animals1
- Biodiversity1
- Compost1
- Culture1
- Environmental justice1
- Food banks1
- Museums1
- Natural monuments1
- Older people1
- Public art1
- Recycling (Waste, etc.)1
- Sustainable development1
- Sustainable urban development1
- Voluntarism1