BIOC63H3 Lecture Notes - Maximum Power Principle, Human Behavioral Ecology, Easter Island
13 Dec 2013
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Bioc63fall2013 lecture 24: the big picture - sustainability. Sustainability: exploitation rate < regeneration rate for resources, available for future generations, don"t use resources faster than they replenish, no disruption of ecosystem function, preserve for the future. Bigger, faster, and more is better? i. e. keeping up with the joneses. We are addicted to our way of life (unsustainable) i. e. rich don"t wanna give up their way of life and style theyre using up irreplaceable fossil fuels: unsustainable use of renewable and non-renewable resources. Human population growth has grown exponentially since the 1800s reached 7 billion in 2011. Impact: land use change: human appropriation of net primary productivity (hanpp) Everything that is growing is used by humand beings red. Some parts of the world we are using almost all of theland that could be use for npp: global surface temperature have been significantly increasing 0. 8 degrees since 1920, large scale local nitrogen overload concentration.
