First page Back Continue Last page Overview Graphics
…has been jeopardised by human behaviour.
In the last 50 years HS has harnessed the atom,
conceived of the dimensions of space and travelled to the moon,
changed the face of earth and disturbed the equilibrium of the biosphere.
The biosphere’s remaining lifespan is measured in 100s of years rather than billions of years because of human overconsumption during the last 100 years.
- Earth’s carrying capacity is estimated to be 2 billion humans.
- Net real potential production equals net solar energy input, harnessing yields low.
- Natural economy ~2x global GDP, but currently not valued!