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Lecture 26

BIOL 350 Lecture Notes - Lecture 26: Biocapacity, Ecological Footprint, Ecosystem Services


Department
Biology
Course Code
BIOL 350
Professor
Lonnie William Aarssen
Lecture
26

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Where are we headed?
Occupy all of our thinking: sex, legacy, leisure
impending collapse of human civilization from environmental degradation is not on our
radar
How bad is it? Really?
Ecological Footpint
I = PAT
I: impact of humans on the degradation of ecosystem services
P: population size (affecting total consumption, waste production, demand for space)
A: affluence (consumption per capita)
T: allowing affluence, but with negative effects (ex: pollution, climate change)
Living Planet Report: supply side vs demand side
supply: area x bioproductivity = biocapacity
demand: population x consumption per person x resource and waste intensity = ecological
footprint
gap between supply and demand: overshoot
our footprint in 2005 exceeded the Earth's ability to regenerate by about 30 percent
by 2030s we would need two Earth;s to keep up with humanity's resource demands and waste
production
Ecological Footprint by country – 2005
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