Biosphere 2: The Martian Colony We Made on Earth... And How it Went Wrong

Summary of Scientific Concepts and Discoveries

Biosphere 2 Overview:

• Biosphere 2 was an ambitious experiment aimed at understanding human life in a closed ecological system, simulating conditions on other planets.
• It was designed to test the viability of human colonization of extraterrestrial environments.

Key Scientific Concepts:

• Closed Earth System (CES): A completely sealed environment where air, water, and food are self-contained.
• Biosphere Definition: The term "biosphere" refers to the global sum of all ecosystems. The first biosphere is Earth itself, hence the name "Biosphere 2."

Structure and Components:

• Comprised of seven biome areas, including:
• Rainforest
• Ocean with coral reef
• Mangrove wetlands
• Savanna grassland
• Fog desert
• Agricultural system
• Human habitat
• Utilized advanced materials for construction, including high-performance glass and steel tubing.

Research and Experiments:

• The project sought to address questions about human adaptation to confined living, diet changes, and oxygen production.
• The participants, referred to as "Biospherians," produced 83% of their diet from within the biosphere, growing various crops and raising animals.

Health and Adaptation:

• Initial weight loss was observed, but overall health improved with increased nutrient absorption efficiency.
• Issues included fluctuating crop yields and challenges in maintaining biodiversity.

Psychological and Social Dynamics:

• Human interactions within the biosphere revealed significant psychological challenges, including factionalism and conflict over project direction.

Environmental Challenges:

• Oxygen levels fell from 20.9% to 14.5%, leading to health concerns among participants.
• Microbial activity in the soil and carbon dioxide release were suspected causes.

Lessons Learned:

• Despite the challenges, the experiment provided valuable insights into ecological management, biodiversity, and human adaptability in closed systems.

Methodology Outline

• Construction of Biosphere 2:
  • Design and build a closed ecological system with multiple biomes.
  • Ensure airtight seals to minimize atmospheric leakage.
• Participant Selection:
  • Recruit a diverse group of individuals for long-term habitation.
• Monitoring:
  • Continuously track health metrics, oxygen levels, and crop yields.
• Research Focus:
  • Investigate human dietary adaptation and psychological impacts of confinement.
  • Study biogeochemical cycles and biodiversity within the closed system.

Featured Researchers and Sources

• Ed Bass (Businessman and Philanthropist)
• John P. Allen (Systems Ecologist)
• Mark Nelson (Biospherian and author of reports on the experience)
• Vladimir Vernadsky (Russian scientist who contributed to the concept of biospheres)