ENVIRSC 2EI3 Final: Envir Sci 2ei3 notes.pdf
16 May 2015
School
Department
Course
Professor
Document Summary
Less developed countries predicted to grow by 33% between 2005 and 2050. India predicted to overtake china as most populous country. Global energy consumption increased 12-fold between 1850-1970. Wealthiest countries: 25x more energy/capita than poorest countries. Ecological footprint: measures the human use of environment in hectares per person. 20% of the world"s population consumes 75% of resources, while poorest population (canada is 3rd highest) consumes around 2% of the sources inde nite period or on a sustainable basis. The amount of biologically productive area available to meet humanity"s needs. Carrying capacity - maximum population size that a given ecosystem can support for an. Canada: highest producer per capita of waste products. Lack of progress towards sustainable development in canada: 1997; commissioner for environment and sustainability noted aspects where improvement. 2008; commissioner"s report indicated very little progress. Lecture 3 - ecosystems and biodiversity: energy flow in ecosystems and biodiversity: Reducing biodiversity = disrupts energy ow to higher trophic levels.
