Examine the causes and the impact of one global environmental issue studied by you. - Leaving Cert Geography - Question 15 - 2010

The causes of climate change are primarily rooted in human behavior and industrialization. Key causes include:

1. Greenhouse Gas Emissions: Increased emissions from vehicles, factories, and power plants lead to the greenhouse effect. Key gases include carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O).

2. Deforestation: Trees absorb CO₂, and their removal not only releases stored carbon but also reduces the planet’s ability to absorb future emissions.

3. Agricultural Practices: Industrial agriculture generates significant emissions and land-use changes that exacerbate climate change.

The impacts of climate change are vast and varied, affecting ecosystems, biodiversity, and human societies. Key impacts include:

1. Extreme Weather Events: Increased frequency and severity of hurricanes, floods, and droughts can devastate communities and economies.

2. Rising Sea Levels: Melting polar ice caps and glaciers contribute to rising sea levels, threatening coastal regions and habitats.

3. Ecosystem Disruption: Shifts in climate zones affect flora and fauna, leading to species extinction and loss of biodiversity.

4. Health Risks: Changes in climate can lead to health issues, such as heat-related illnesses and the spread of infectious diseases.