| open standard(technology, entity, form, concept) |
| operational satellite(noun, technology, entity, waste, pollution) |
| orbital debris co-ordination working group(noun, technology, entity, waste, pollution) |
| orbital debris remove(noun, technology, entity, waste, pollution) |
| orphaned technology(technology, entity, form, concept) |
| pace of innovation(technology, entity, form, concept) |
| perfluorooctanoic acid(noun, technology, entity, waste, pollution) |
| planetary protection(noun, technology, entity, waste, pollution) |
| plastic(noun, technology, entity, waste, pollution) |
| printed circuit board(noun, technology, entity, waste, pollution) |
| printer(noun, technology, entity, waste, pollution) |
| printing press(technology, entity, form, concept) |
| processor(noun, technology, entity, waste, pollution) |
| re-usable(noun, technology, entity, waste, pollution) |
| recycling of e-waste(noun, technology, entity, waste, pollution) |
| reentering space debris(noun, technology, entity, waste, pollution) |
| refrigerator(noun, technology, entity, waste, pollution) |
| renewable energy(technology, entity, form, concept) |
| robot economics(technology, entity, form, concept) |
| robot tax(technology, entity, form, concept) |