GEOGRAPHY 4.3 and 5.6 Flashcards
GEOGR (18 cards)
GLOBAL WARMING
It is the way temperatures around the world are rising. Global warming is directly causing climate change around the world
Effects of Global Warming
i) ice and snow on high mountains are melting (for example in the Alps)
ii) the ice around the North and South Pole is thinning fast.
iii) melting ice sheets at the poles are causing sea levels to rise (they have risen up to 25 cm over the last 100 years)
iv) many countries are getting more storms and floods than usual (like the UK)
v) Some countries are getting more droughts than usual
vi) Overall, the storms, floods and droughts are getting more severe.
How will climate change affect us
a) Low lying coasts will get flooded by rising seas, including coasts in the UK. Low lying islands like Tuvalu in the Pacific (above) may drown
b) Storms and floods will become more frequent and do more damage in many places, including the UK
c) It will get too hot and dry for crops in some places. This could lead to famines and more refugees and even wars about water.
4.3 People and Resources
RESOURCE:
They are things we need to live or can use to earn a living. For e.g./some examples are: food, fuel to cook with, paper to write on, etc.
NATURAL RESOURCE:
Resources that occur naturally in/on the Earth that we can make us of. For e.g. sunshine or the sea.
question from the book -
the UK is in the group of countries with 0% - 5% undernourished. Do you think the exact value for the UK is closer to 0% or 5%
UK is closer to 0% undernourished. It is a developed country with a lot of resources
RENEWABLE ENERGY:
1. Resources that can be used again and again. Example - wind, solar power
2. Resources that can be replaced once they have been used.
3. They are environmentally friendly.
4. Renewable energy will not run out.
NON RENEWABLE ENERGY
1. Once they are used they cannot be replaced. Example - fossil fuels such as coal, natural gas, crude oil.
2. Natural resources which have formed over millions of years from organic matter, dead plants and creatures
3. Burning fossil fuels releases chemicals that cause acid rain, smog and global warming.
4. Eventually fossil fuels will run out.
Wind power is electricity generated using wind turbines
Wind power can only be generated in places with a lot of wind, such as coastal locations and high land
Wind turbines are expensive to construct but relatively cheap to run
The largest wind farm in the world is Altamont Pass in California with 7000 wind turbines.
The UK has approximately 550 wind turbines, enough to power 400,000 homes.
The largest wind farm is in Camelford in Cornwall, providing sufficient energy to power 3000 homes
The government has set up a goal of producing 10 percent of the UK’s electricity from wind energy by 2025.
Currently the UK generates less than 1 percent of its electricity from wind.
Problems with wind turbines:
1) expensive to build
2) Some people say they are ugly and spoil the landscape
3) Some people claim they are noisy and interfere with television reception
4) They will not work if there is not enough wind
FOSSIL FUELS (TICKED BOXES FOR EACH ONE)
Gas - stores energy from the sun
a fossil fuel,
used to generate electricity
Crude oil - stores energy from the sun
fossil fuel,
used to generate electricity
Coal - stores energy from the sun,
fossil fuel,
used to generate electricity,
renewable resource
Wood - stores energy from the sun
used to generate electricity
a renewable resource
Nuclear fuel - used to generate electricity