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- Biosphere, Atmosphere, and Human Fears7
- Climate Change2
- Culture, Technology, and Human Rights in the Developing World1
- Designing Progress: Living on the Edge1
- Extinction: Who Will Survive?4
- Feed the World7
- Heal the World12
- Humanitarian Engineering: Past & Present1
- Ignorance is Not Bliss: Can Schools and Technology Help?4
- Livable Cities5
- Power the World10
- Recover, Reuse, Recycle5
- Recover, Reuse, and Recycle: Building a Lasting World4
- Seeking Sustainability2
- Shelter the World4
- The World's Water8