Unit 2 - Energy, Water and the Environment Flashcards
Non-Renewable Energy?
Energy that can not be reproduced in the time that it takes to consume it e.g. coal.
Renewable energy:
Energy that is naturally occurring and potentially infinite.
Fossil Fuels?
Any combustible organic matter that is made from the remains of former flora and fauna.
Raw Material?
Any unprocessed material.
Climate Change - Human causes of Climate Change?
- Burning Fossil Fuels Power Stations - Coal is burned and CO2 and other gasses are released into the environment.
- Over farming animals, which release methane.
- 50 and 100 million tonnes of methane a year produced from Rice etc. Bacteria in the roots people plant the rice.
- Transport e.g cars and aircraft.
Climate Change - Physical causes of Climate Change?
- Large amounts of Sulfa and other etc are released into the atmosphere from volcanic eruptions.
- Tectonic movement effects ocean circulation, currents speed up warm water can be moved, melting ice caps.
- Snow and ice reflect sunlight back into space, without this more heat is absorbed.
- Carbon dioxide needs to be produced otherwise earth temperature would be -18oC.
Climate Change - Negative effects of Global Warming - Asia?
Social - Crop yields can decrease y 10%, with an increasing population there is going to be greater amount of hunger.
Economic - There is going to be a greater strain on sustainable development due to increasing pressure on natural resources due to rapid urbanization.
Environmental - Glaciers in the Himalayas are set to retreat causing increased flooding and rock avalanches as slopes become unstable.
Climate Change - Negative effects of Global Warming - Antarctica and Arctic?
Social - Transport can be come compromised due to large amounts of ground water. No goods can be transported.
Environmental - Warmer temperatures has led to 80% decrease in the amount of Krill, with is what many seals and whales feed on, hence decreasing the population.
Snow reflects 90% of light from sun.
Water absorbs 94% of heat from sun
2500 square km of ice shelf’s have melted since 1950.
Climate Change - What are local councils doing to stop climate change?
Targets - UK councils are trying to cut carbon emissions by 20% in 2020 from 1990 levels.
Funds - Government has given £4 million to local councils to invest money in energy saving light bulbs and combined heating systems.
Climate change - What are Schools doing to stop Climate Change?
Livesimply - Campaign that started in 2007, run by catholic church which encourages people to make correct and considerate choices.
Energy efficiency - Introducing energy saving heating and water systems. Encouraging people to turn the lights out and install solar and wind turbines for renewable energy.
Climate Change - What is the Kyoto Protocol doing to help stop climate change?
2005 Feb - Countries agreed to cut greenhouse gas emissions by 5.2 percent compared with 1990 global levels.
Climate Change - Kyoto Protocol Targets?
- 8 percent for EU
- 7 percent for USA
- 6 percent for Japan
- 0 percent for Russia
- 10 percent for Iceland
- 8 percent for Australia
Countries could trade carbon credits. By 2008 181 countries had joined.
Climate Change - What am i doing to help stop climate change?
- Turning down temperature on fridge and washing machines.
- Looking at where energy companies source there energy.
- Use renewable sources of energy
- Buy Hybrid car.
Climate Change - What are National government organisations doing to help stop climate change?
Green Peace
- Trying to pursued the UK government to produce energy in more sustainable ways.
- Trying to not waste energy inefficiently in cooling towers in power stations, introducing combined heating systems for small areas.
- Taxing flights and airlines more for the fuel that they burn so that there will be less carbon emissions.
- Introducing carbon credits so companies are able to buy and sell them if needed.
Sustainability - Define?
This means that things can keep going, continue into the future and go on forever. the planet can continue to do what it was designed to do (provide food water and resources.