| 4a1. | Sustainable management and quality of water |
| 4a2. | Global change, climate and biodiversity |
| 4a3. | Sustainable marine ecosystems |
| 4a4. | The city of tomorrow and cultural heritage |
| 4a5. | Cleaner energy systems, including renewables |
| 4a6. | Economic and efficient energy for a competitive Europe |
| 4b1. | The fight against major natural and technological hazards |
| 4b2. | Development of earth observation satellite technologies |
| 4b3. | Socio-economic aspects of environmental change in the perspective of sustainable development |
| 4b4. | Socio-economic aspects of energy within the perspective of sustainable development (the impact on society, the economy and employment) |
| 4c1. | Climate and global change research facilities. |
| 4c2. | Marine research facilities. |
| 4c3. | Natural hazards research facilities |