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Living Abroad Shifts Perspective
- Kellen's experience in Mexico changed her worldview, making her see wealth and poverty more clearly.
- She realized American lifestyle is luxurious and wasteful compared to many poorer places.
Human Biomass Dominance
- Humans and domestic animals make up 98% of Earth's biomass; wild animals constitute only 2%.
- This dominance has caused severe biodiversity loss and ecosystem imbalance.
Economic Growth Drives Energy Use
- The global economy grows exponentially at about 3.3% annually, doubling every 22 years.
- This requires proportional increases in energy consumption, currently mostly fossil fuels, creating sustainability challenges.