section C Flashcards
global inequality of food and water
rich countries have food surplus meaning they have more then enough food and can feed economy, able to farm
poor countries have food deficit meaning they don’t have the conditions and food to feed the entire economy. these countries experience draughts etc
global inequality of energy
high end countries use 30 times the amount of energy poor countries use.
rich economies have higher wages allowing them to spend money on energy eg holidays mobile phones tv etc
explain uk attempt to respond to increase food demand
farm more, import a lot more food
evaluate the issues of large scale water transfers in the uk
cost lots of money to make, bad for the environment, destroys habitats.
places that have water scarcity will no longer have to worry about droughts, jobs will be provided
why does the uk use renewable and non-renewable energy resources
renewable - Renewable energy resources are necessary because they will not run out and are less harmful to the environment.
non-renewable - much higher energy production, provides jobs, increase trade
physical and human factors influencing the availability of water
physical - climate change, salt water encroachment, less rain fall
human - water contamination, global warming, industrial pollution, over abstraction
benefits of increasing water supply
create energy, managing flooding, drinking water all year round, water crops to food us
costs of increasing water supply
massively expensive as you need to build dams and pay workers
how can demand for water be more sustainable
water butts for gardening, don’t use garden hose, use second button on toilet, filleted rain water can be used on farms.
negative of the Hoover dam
it changed the Colorado River’s course, affecting fish habitats, sediment structures, water quality, and the capacity of the initial floodplains
positives of the Hoover dams
controls the flooding of the Colorado River, irrigates to over 1,500,000 acres of land, and provides water to over 16,000,000 people.
Power generated by the dam provides energy to power over 500,000 homes.