Geo 100 Flashcards
(33 cards)
Greenhouse Effect (4 things) AS+PBE
- Gases in the atmosphere trap heat
both natural and proper for life on earth
Greenhouse gases absorbs the suns energy, slowing or preventing the heat from escaping into space
the gases act like a blanket, making the earth warmer that it otherwise would be and throwing off the the energy balance of the planet
so
gases absorb sun energy
slows and prevents heat from escpaing into space
gases act like a blanket and make the earth warmer than it should be becaues it throws the energy balance of the planet off
what is the most potent greenhouse gases?
Flourinated gases
The carbon cycle
The movement of carbon between the crust, atmoshphere, plants, soil, and animals
Photosynethesis
conversion of carbon dioxide into organic compounds
weather
daily atmospheric conditions, temp and precipiation
Climate
long term weather, 30 year moving average of weather conditions
conditions that can be expected to occur based on previous weather during a given time of year (season)
why did the greenhouse gases increased?
Human alteration of the carbon cycle
methane from livestock, fossil fuels, and waste disposal
nitrious oxide from cars, fertilizers and industrial activity
Reducing emissions (developed country)
emitted the most CO2 in the atmosphere in order to becom developed and emits more than less developed per captia
reducing emissions (under-developed country)
emit less co2 per capita but have higher pop growth
if they eventually emit as much per capita as developed they will have bhig emissions as well
most water around the world has been seen as?
common property resource
bottle water includes
spring water, artesian water from underground resources, mineral water occurs naturally, purified water usually filtered municipal tap water
fortified products that have included nutrient additives
environmental impacts of bottled water
bottled water is marketed as clean and friendly however
the life cycle analysis shows because of fossil fuels use to make and transport bottles
bottles discarded improperly or in landfills
Bottle water in industrialized countries…
associated with health and wealth (affluence) lifestyle choice
Bottle water In developing countries..
used to replace supplies that are becoming scarce, polluted or privatized.
water systems don’t have the capacity for the influx of people (being born into the world )
How has water become expensive and privatized
municipal water companies turned over to private companies, privatization is common in under-developed countries leaving many without access to clean and affordable water
The three types of water scarcity
hydrological, techno-economic, perceptual
hydrological scarcity
lack of water due to climatology and hydrological factors
affluence and technology
ex) deserts, United Arab Emirates
Techno-economic scarcity
lack of water due to lack of infrastructure or treatment
often occurs in rapidly urbanizing underdeveloped areas
ex) Mexico
Perceptual Scarcity
water is perceived to be scarce of hazardous even where there is widespread availabillity of potable water
developed countries
ex) Europe and United states
Risk assessment
could determine if the bottled water is safer than tap water or if it is a matter of risk perception
Is bottled water safer than tap?
depends on location, most bottled water is packaged tap, in the U.S tap water is more strictly regulated than bottled water
Primitive Accumulation
water is appropriated and turned from a common resource into a commodity, then sold back to poeple for profit
Overproduction
companies produce too much of a product or to many choices of one
they have to creat demand through marketing and packaging
affluent people will then purchase a product they can get for almost free
Where were potatoes cultivated?
The Andes