Geography – 2. The natural environment | e-Consult

Global climate change has a wide range of significant effects on the physical environment. These effects are already being observed worldwide and are projected to intensify in the future. Key impacts include:

• Rising Global Temperatures: The most direct effect is the increase in average global temperatures. This leads to more frequent and intense heatwaves, impacting human health, agriculture, and ecosystems.
• Changes in Precipitation Patterns: Climate change disrupts atmospheric circulation, leading to altered precipitation patterns. Some regions experience increased rainfall and flooding, while others face prolonged droughts. This can have severe consequences for water resources, agriculture, and ecosystems.
• Melting Ice and Snow: Rising temperatures cause glaciers, ice sheets, and snow cover to melt at an accelerated rate. This contributes to rising sea levels and threatens coastal communities and ecosystems.
• Sea Level Rise: Thermal expansion of water (as it warms) and the melting of ice contribute to rising sea levels. This threatens coastal areas with increased flooding, erosion, and saltwater intrusion into freshwater sources.
• Increased Frequency and Intensity of Extreme Weather Events: Climate change is linked to an increase in the frequency and intensity of extreme weather events, such as hurricanes, cyclones, floods, droughts, and wildfires. These events cause significant damage to infrastructure, economies, and human lives.
• Changes in Ecosystems: Altered temperatures and precipitation patterns can lead to shifts in species distribution, habitat loss, and ecosystem disruption. Some species may struggle to adapt, leading to decline or extinction.