Geography- Env Chane and Managent Term 1 2015 Flashcards
Interconnection between climate change and humans
Deforestation- less CO2 absorbed fossil fuels (heat trapping gases releases --> increased atmos. Temps
Climate change
Change in climate over time, due to human processes or human…
Today ^ rate of global warming –> climate change due to human activity
Greenhouse effect
Mechanism- solar E trapped by water vapour and gases –> heating atmos + helping retain heat
Enhanced greenhouse effect
Observable trend of rising world atmos temps over past century, particularly past few decades
Global warming
Increased ability of Earth’s atmosphere to trap heat
Kyoto Protocol
Internationally agreed set of rules developed by UN aiming to reduce climate change through stabilisation of green house gas emissions
Carbon credits
Term for a tradable certificate representing the right of company to emit one metric Donne of CO2
Ecological footprint
Measure of human demand on earth nat systems in general, particularly ecosystems
Why coastlines important to humans
Human settlement, urban complexes, port & harbours –> import & export
- historic evidence
Major hub for economic activity
-tourism, business & leisure
How humans use coastlines
Leisure, tourism, enjoyment, import & export, fishing, activities
How humans negatively affect coastlines
Building –> clearing dunes and vegetation–> erosion, water coming inland and increasing salinity of soil & groundwater
- rubbish pollution, decrease biodiversity
- sand mining- Nat cycle that forms sand banks disrupted
Constructive wave
Generated in calm conditions, build up sediments giving rising- dunes & beaches
- powerful awash, weak…
Destructive wave
Generated in storm conditions,^ erosion of coastal …
- weak awash…
How global warming affected coastlines
Melting ice & glaciers –> rise sea –> flooding & erosion
- stronger storm & More destructive waves –> erosion
Solutions
Kyoto protocol Barriers & sea walls New islands Reduce C emissions, locally & internationally E-efficient tech Farming- no deforestation Ecotourism