Environmental Change and Management Flashcards
(38 cards)
Lithosphere
Earth
Hydrosphere
Water
Biosphere
Life
Atmosphere
Air
System
Collection of interdependent parts enclosed within a defined boundary
‘Spheres’
Parts of earth’s system - lithosphere, biosphere, hydrosphere, atmosphere
Events
When a change occurs in more than one sphere / interactions between the spheres
Environmental change
can be grouped into 3 categories - change to land, change to atmosphere, change to water
Change to land
Land degradation - loss of productivity and decline in fertility of land
Change to atmosphere
Rising C0(2) in climate
Change to water
Water becoming polluted, ocean acidification
Causes to change
Natural - occurs over billions of year, or driven by human action
Ecosystem services
Benefits people obtain from ecosystems, even if they don’t know it - sources, sinks, service, spirituality (stewardship)
Sources
Provisioning services - Natural product we can use e.g. coal for fuel, timber for building
Sinks
Regulating services - Processes that absorb our waste e.g. microorganisms, ocean, bacteria, phytoplankton
Service
Supporting services - Things done by nature that don’t have a consumable product e.g. wetlands that filter and slow floodwater, forests that turn C0(2) into oxygen
Spirituality
Cultural services - Personal connections humans have to the earth e.g. Indigenous connection, enjoying the scenery
Stewardship
Our role to take care and sustain these services
Worldview
Set of beliefs about what is real, what is valuable and what it
means to be a human being
Weather
Atmospheric conditions occurring locally over short periods of time
Climate
Long term (>30 years) regional or global average temperature, humidity and rainfall patterns over seasons, years or decades
Global Warming
Long term heating of earth’s surface due to human activities
Climate change
long term change of average weather patterns and climates
Egocentric
Self centered - I am the most important creature on earth. Everything supports me and my lifestyle.