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Climate change & human impact

Grade 10 · Geography · Free lesson

Hey there! Ready to explore how we interact with our amazing planet? Let's dive into how humans and the environment shape each other every day!

Humans constantly interact with the Earth. We depend on natural resources like water, adapt to cold weather by building insulated homes, and modify the land by cutting down forests for farming.

Extreme weather events like El Niño can disrupt these systems. During El Niño, unusual ocean warming in the Pacific changes global wind patterns, causing heavy rains in some areas and severe droughts in others.

WARM OCEAN CURRENT El Niño Weather Shift

Climate shifts, resource scarcity, and new infrastructure change how we live. For example, building clean energy grids and fast transit systems helps cities reduce carbon emissions and adapt to a changing climate.

Clean Energy Infrastructure
✏️ Worked example

Compare how people in a low-lying coastal city might adapt to rising sea levels versus how they might modify their environment to handle this change.

  1. Define the goal: We need to compare adapting (changing human behavior) with modifying (changing the physical environment).
  2. Analyze adaptation: To adapt, residents might elevate their existing homes on stilts or move further inland to escape the water.
  3. Analyze modification: To modify, the city might build massive concrete seawalls or install giant pumps to push water back into the ocean.
  4. Compare the impacts: Adaptation changes how people live with the water, while modification physically alters the shoreline to block the water.
  5. Formulate the conclusion: Both strategies protect the community, but adaptation works with nature, whereas modification actively reshapes the physical landscape.
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