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Examine the significance of two of the following environmental issues in a global context: - desertification - global warming - deforestation - Leaving Cert Geography - Question 15 - 2008
Question 15
Examine the significance of two of the following environmental issues in a global context: - desertification - global warming - deforestation
Worked Solution & Example Answer:Examine the significance of two of the following environmental issues in a global context: - desertification - global warming - deforestation - Leaving Cert Geography - Question 15 - 2008
Step 1
Desertification
Answer
Desertification refers to the process through which fertile land becomes desert as a result of various factors, including climate change and human activities. In a global context, desertification is significant because it threatens food security by reducing agricultural productivity in affected regions. Additionally, it exacerbates water scarcity, leading to conflict over scarce resources, particularly in areas like sub-Saharan Africa where the population is heavily dependent on agriculture.
The economic implications are tremendous, as nations dependent on agriculture may face heightened poverty rates. Furthermore, desertification can lead to the displacement of populations, creating environmental refugees and putting pressure on urban areas and resources.
Step 2
Global Warming
Answer
Global warming, primarily caused by increased greenhouse gas emissions, poses severe threats on a planetary scale. One of the prominent impacts is the rise in global temperatures, contributing to more extreme weather events such as hurricanes, droughts, and floods, which can disrupt communities and economies worldwide.
Moreover, global warming leads to rising sea levels, threatening coastal communities and ecosystems. It also affects biodiversity, as many species may fail to adapt to rapid climate changes, leading to extinction. Consequently, global warming not only affects environmental systems but also poses significant challenges for human health and socioeconomic stability, making it a critical global issue.