Preserving the Planet: Who Changes the System?

Interactive Human Geography Lab

Preserving the Planet

Environmental problems do not begin with a smokestack or end with a new machine. They emerge from systems: population, wealth, technology, institutions, landscapes, and the unequal power to decide what happens where.

Impact=PopulationxAffluencexTechnology

1. Measure impact 2. Change the lens 3. Trace a system 4. Negotiate Minnesota 5. Make the argument

1

Measure impact without blaming a single variable

Select a country, then change its population, income per person, and carbon intensity. The model uses the IPAT relationship, with territorial carbon dioxide as the impact.

Choose a starting geography

Latest available World Bank snapshot: 2025 population and GDP per person, paired with 2024 carbon dioxide per person.

Population relative to baseline

100%

Income per person relative to baseline

100%

Carbon intensity relative to baseline

100%

Modeled annual impact: India 3,212 million metric tons of CO2

Baseline teaching estimate

1.46bPopulation

$2,703GDP per person

0.814 kg/$Carbon intensity

India has far lower emissions per person than the United States, yet its very large population makes its national total substantial. Scale changes the answer.

2

Change the lens, change the story

National totals, per-person responsibility, and carbon intensity answer different questions. None is the one innocent map.

Territorial CO2 total

Approximate million metric tons, using the same mixed-year teaching snapshot.

The category trap

A low-income country may have rapid population growth but almost no carbon emissions per person. A rich country may improve efficiency while consuming enough to keep its impact high. A manufacturing country may produce emissions for goods consumed somewhere else.

IPAT is a lens, not a verdict. "Technology" includes energy systems, infrastructure, and production methods. "Affluence" hides enormous inequality inside national averages. Trade moves part of the impact away from the consumer.

Quick test: Which lens would each actor prefer: a government defending its national total, a citizen discussing personal responsibility, or a manufacturer arguing that consumers elsewhere created the demand?

3

Trace the Aral Sea as a human-environment system

The original activity used the disappearing Aral Sea as one option. Keep it: few landscapes reveal more clearly how a political goal travels through canals, water, salt, livelihoods, health, and attempted repair.

Remaining water Former extent Diversions

Driving force

Human activity

Environmental change

Consequences

Response

Classify the evidence

Cotton production targets promised export income and regional development.

Where does this statement belong in the system?

Card 1 of 8 | Correct: 0

4

Negotiate a Minnesota environmental conflict

In 2026, federal action ended the 20-year mineral withdrawal near the Boundary Waters watershed, reopening a path toward copper-nickel mining proposals. Ending a withdrawal is not the same as approving a mine: leases, state and federal review, permits, litigation, and political decisions still matter.

Range worker and local governmentJobs, tax base, population stability, and skepticism toward distant decision-makers.

Mining companyAccess to minerals, investment certainty, modern engineering, and a viable permit path.

Anishinaabe rights advocateWater, wild rice, treaty rights, sovereignty, cumulative impacts, and consent.

Outfitter and conservation groupWatershed risk, wilderness character, tourism, and harms that may be irreversible.

Clean-energy plannerDemand for copper and nickel, supply security, recycling, and where extraction occurs.

Downstream publicWater quality, long-term monitoring, liability, and who pays after a failure.

Build a policy package

Select any tools. The response meter is a teaching reconstruction, not a survey of actual organizations.

Committee response

Support ranges from 0 to 100. Perfect consensus may be impossible when one side seeks access and another sees the location itself as unacceptable.

No package yet Choose policies to reveal the bargains and contradictions.

5

Make an argument the system can survive

Choose the claim you can defend most strongly. The evidence below will change to help you build a final explanation rather than a slogan.

Select a claim

1Use one result from the IPAT simulation.

2Use one feedback from the Aral Sea system.

3Use one disagreement from the Minnesota negotiation.

S

Sources and model limits

The interactives simplify real systems. Values are rounded, mixed-year indicators are labeled, and stakeholder scores are transparent teaching estimates rather than predictions.

• World Bank, World Development Indicators: 2025 population and GDP per capita; 2024 territorial CO2 per capita for Ethiopia, India, China, and the United States.
• NASA Earth Observatory, World of Change: Shrinking Aral Sea: irrigation diversions and satellite evidence of changing water extent.
• World Bank, Preserving the Northern Aral Sea: restoration work, the Kok-Aral Dam, fisheries, and continuing limits.
• Minnesota DNR, April 17, 2026 statement: current distinction between federal action and state mineral leases.
• Twin Metals, Mine Plan of Operations: the project proponent's description of location, design, and economic rationale.
• USDA Forest Service, Superior National Forest and public environmental-review materials for watershed and land-management context.
• Original activity structure: Kuby, Harner, and Gober, Human Geography in Action, Chapter 14: IPAT, human-environment systems analysis, and conflicting viewpoints.

A final caution: reducing a landscape to one score is useful only if the score sends us back to the geography. The point is not to make the world tidy. It is to see more clearly where the untidiness comes from.