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Science and TechnologySEE 2081, Bagmati Province

Mention any two effects of climate change.

2

Answer

· Based on the official syllabus and past papers
Updated

Climate change has severe and far-reaching effects on both the environment and human societies. Two significant effects include:

  1. Rising Global Temperatures: The Earth's average temperature has increased by approximately 1.1°C since the late 19th century, primarily due to the accumulation of greenhouse gases like carbon dioxide and methane in the atmosphere. This rise in temperature leads to glacial melting, sea-level rise, and more frequent heatwaves, which threaten ecosystems, agriculture, and human health.
Carbon dioxide (CO₂) – a key greenhouse gasCarbon dioxide (CO₂) – a key greenhouse gas
Molecular structure of carbon dioxide, which traps heat in the atmosphere and contributes to global warming.
  1. Extreme Weather Events: Climate change intensifies the frequency and severity of extreme weather phenomena, such as hurricanes, droughts, floods, and wildfires. For example, stronger storms cause widespread destruction, while prolonged droughts reduce water availability, harming crops and leading to food shortages. These events disrupt economies and displace communities, exacerbating global inequality.

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