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Environmental Change (Land Changes (Soil Erosion (Soil gradually worn away…
Environmental Change
Land Changes
Cities, towns, farms have all caused changes to natural landscapes
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Ecosystem Decline
Degraded forests, rivers, streams through loss of vegetation or alien invasion
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Water Changes
Fresh water vital to life on earth and human survival. Mostly for the food we eat through irrigation
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Pollution
contamination of lakes, rivers, estuaries, oceans
Caused by human activity like oil refining, shipping, fishing, farming, fertilisers, landfill and clearing
Consequences - limited drinking water, fish kills, food chain alteration
Coral bleaching, destruction of natural habitats
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Atmospheric Changes
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Dumping ground for gases and chemicals leads to climate change, ozone layer
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Air pollution
World's worst environmental health risk - asthma, lung disease. 3.5 million deaths per year
Traffic, industry, indoor heating and cooking
Tougher restrictions are helping in the developed world except Asia and Africa where it is getting worse
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Sustainability - Economic, Social, Environmental