Western Governors University

C267: Climate Change

A study guide to WGU's C267, the science education course on how the climate system works, how it has changed and what the evidence shows.

Updated October 2026 · 5 min read

C267 Climate Change is a Western Governors University course that teaches future and current science teachers the science behind a changing climate, from how the system works to what the evidence shows.

WGU's program guides place the course in its science education degrees, including the M.A. Science Education (Secondary Chemistry), at three competency units.

The description covers how the climate system works, what makes climate change on different time scales, how climate has changed in the past and how scientists use models, observations and theory to project future climate.

Students often find the course demanding because it sits across several sciences at once. You need enough physics for energy balance, enough chemistry for ocean acidity and enough Earth science for past climates, and then you must explain all of it in plain language.

Course at a Glance

ItemDetails
UniversityWestern Governors University (WGU)
Course codeC267
ProgramScience education degrees (e.g. M.A. Secondary Chemistry)
Competency units3
Subject areaClimate science, Earth systems
Typical workEvidence explanations, data interpretation, written analysis

What C267 Covers

The official description groups the course into a handful of big questions. Each one is a likely focus for an assessment task:

TopicIn plain language
How the climate system worksEnergy from the Sun, the atmosphere, oceans, ice and land, and how they exchange heat
Causes of change on different time scalesOrbital cycles, volcanic activity, solar output and greenhouse gases, and how they interact
Past climatesHow ice cores, sediments and other records show earlier warm and cold periods
Models, observations and theoryHow scientists combine data and physics to project future climate
Ocean evidenceChanges in ocean temperature, sea level and acidity linked to warming
Satellites and technologyHow remote sensing reveals global signals of change
Human activity and consequencesThe link between emissions and current warming, and its social, economic and environmental effects

Key Concepts Explained

The Greenhouse Effect and Energy Balance

Earth absorbs sunlight and radiates heat back to space as infrared. Greenhouse gases absorb some of that outgoing infrared and re-emit it, warming the lower atmosphere. Adding more of these gases tips the balance, so the planet warms until outgoing energy matches incoming energy again.

Feedbacks

A feedback amplifies or dampens an initial change. Ice-albedo feedback is the classic amplifier: warming melts reflective ice, darker ocean or land absorbs more sunlight, and warming increases further.

Example: A question asks why Arctic warming has outpaced the global average. A strong answer names ice-albedo feedback, explains the chain of cause and effect in three steps and notes that this is one reason polar regions respond strongly to the same global change.

Ocean Acidification

The ocean absorbs part of the carbon dioxide we emit. Dissolved CO2 forms carbonic acid, which lowers pH and reduces the carbonate ions that corals and shellfish use to build shells and skeletons. This is chemistry a secondary teacher can demonstrate in class.

Typical Assignments and How to Approach Them

WGU assesses competency through performance assessments (written tasks scored against a rubric) or objective assessments (exams). Check your course page for the current format. Work in this subject typically looks like this:

Task typeWhat it testsHow to approach it
Evidence explanationLinking data to a claimState the claim, cite the evidence, explain the mechanism
Graph or data interpretationReading trends correctlyDescribe the trend, its scale and its limits
Past versus present comparisonUnderstanding time scalesCompare rate and cause, not just size
Consequences analysisConnecting science to societySeparate physical effects from social and economic ones

How Today's Change Differs from Past Cycles

The course asks you to explain how present-day change differs from earlier natural cycles. This is where many answers go wrong, either by ignoring past change or by assuming it makes today's warming unremarkable.

Three lines of reasoning make the comparison clear:

Teaching Climate Change in the Classroom

C267 sits in a teacher preparation program, so explanations that work for school students are a real advantage. Climate change is also a topic where students arrive with strong opinions, partial information and sometimes anxiety.

A few approaches help keep lessons scientific and constructive:

Even when a task does not ask for teaching ideas directly, writing as someone who could explain the concept to a class tends to produce clearer, better organized answers.

Where Students Get Stuck

Study Tips for C267

How We Help with C267

Send the task instructions, rubric, any data sets or articles provided and evaluator comments from earlier attempts. A writer with a science background prepares a model explanation, helps you interpret graphs, or reviews your draft for scientific accuracy and clarity.

GradeEssays is independent of Western Governors University. Our work is tutoring and reference material: use it to understand the science, then write and submit your own work under WGU's academic integrity rules. We never log in to student portals. Every order is written from scratch, with free revisions within the scope of your original request.

Explain Climate Science with Confidence

Share your C267 instructions and any evaluator feedback. A science tutor prepares a model explanation or reviews your draft.

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Frequently Asked Questions

How many competency units is C267?

WGU's science education program guides list Climate Change at three competency units.

Which programs include C267?

It appears in WGU science education degrees, including the M.A. Science Education (Secondary Chemistry). Check your own program guide for its place in your plan.

Is C267 an exam or a written task?

WGU uses both performance and objective assessments. Your course page in the student portal shows the current format.

Do I need strong maths for C267?

The course is conceptual. You should be comfortable reading graphs and basic data, but heavy calculation is not the focus of the description.

What sources should I use?

Scientific agencies and peer-reviewed research are the safest choices. Avoid blogs and opinion pieces when explaining evidence.

Is GradeEssays affiliated with WGU?

No. We are an independent tutoring and writing service with no connection to Western Governors University.