Key Challenges to Sustainablility (Exploited Oceans (The rate at which the…
Key Challenges to Sustainablility
Increased the Demands for
Over the last 200 years, the amount of carbon dioxide present in the atmosphere has increased by 25%.
The main cause of the increase is the burning fossil fuels and the cutting down of trees
Increasing global temperatures, rising sea levels and retreat of ice capes and glaciers have also been linked to this problem
The removal of natural vegetation is the main cause of land degradation.
When the trees are removed, the land is exposed to the agents of erosion: wind and running water.
Pollutants are reducing the ability of the biophysical environment to provide ecosystems services (food, shelter, clothing)
The burning of fossil fuels has had a major impact on the earth's atmosphere.
There is a high level of habitat destruction around the world
Animal and plants are reliant on these habitats and once they are destroyed, animals and plants are vulnerable to extinction.
The rapid growth of cities, especially in developing countries has overwhelmed the ability of authorities to meet the basic need of the urban population
Overcrowding, pollution and the growth of squatter settlements are all results of urbanisation
The rate at which the oceans are being exploited is unsustainable.
Pollution is another major problem affecting oceans.
If oceans are to be used sustainably, their use must be carefully managed and there needs to be international cooperation.