Written Exam (Leaving Cert CASD): Revision Notes
Written Exam
What the written examination assesses
The CASD written examination uses various question types to evaluate two main areas of your learning. First, it tests your knowledge and understanding across the three core strands of the subject. Second, it examines your ability to apply this learning to authentic, real-world issues related to climate action and sustainable development.
The examination is designed to assess not just what you know, but how effectively you can use that knowledge to analyse complex environmental and social challenges. This approach reflects the practical, problem-solving nature of climate action and sustainable development work.
The exam follows an applied learning approach - you'll need to demonstrate both theoretical knowledge and practical application skills throughout your answers.
The three strands
The CASD course is built around three interconnected strands that provide different perspectives on climate and sustainability challenges:
Earth Systems, Life, and Environment focuses on the scientific foundations of climate and environmental issues. This strand covers the science of climate and ecosystems, examining evidence, data, and natural processes. You'll explore topics like greenhouse gas effects, impacts on weather systems and oceans, biodiversity changes, and scientific solutions such as renewable energy, water efficiency, and carbon sequestration.
People, Power, and Place examines the human dimensions of climate issues, particularly questions of justice, policy, economics, and culture. This strand investigates who holds power in climate decisions, who faces the greatest risks from climate impacts, and why these inequalities exist. It explores concepts like climate injustice, intersectionality, root causes of environmental problems, media representation, and just transitions in Ireland and globally.
Global Connections looks at international cooperation and global systems. This strand covers topics like the UNFCCC and COP processes, Nationally Determined Contributions (NDCs), loss and damage mechanisms, Sustainable Development Goals (SDGs), Ireland's EU obligations, global supply chains, and future scenarios. It examines how global commitments translate into national and local actions.
Key Strand Definitions:
- Earth Systems, Life, and Environment — the science of climate and ecosystems; evidence, data, and processes
- People, Power, and Place — justice, policy, economics, culture; who has power, who bears risk, and why
- Global Connections — international cooperation (UNFCCC/COP), supply chains, migration, finance, and futures
Question types and command words
The written examination includes a mixture of question formats, each requiring different approaches and skills. Understanding what each command word asks you to do is crucial for answering questions effectively.
Short response questions typically ask you to provide precise definitions or brief explanations. For example, you might need to distinguish between mitigation and adaptation, or explain the difference between climate debt and ecological debt.
Data-based questions present information through graphs, charts, maps, or statistical data. These questions often follow a pattern where you describe the trends shown in the data, explain the underlying drivers or causes, and then connect these to broader implications for climate action or policy.
Case study questions examine specific examples from Ireland and the Global South. These might focus on policy versus protest movements, community projects, or just transition examples. You'll need to identify key stakeholders, analyse evidence, discuss outcomes, and evaluate justice dimensions.
Extended response questions require more comprehensive answers where you compare different solutions, evaluate policies, or propose action plans supported by evidence.
Command Words - Know What Each One Asks For:
- Describe/Define → give clear, concise statements (no waffle)
- Explain → show cause-and-effect or 'how/why'
- Analyse → break down evidence from sources, identify trends and patterns, interpret significance
- Evaluate/Assess → weigh positives/negatives, trade-offs, feasibility, justice impacts, reach balanced judgement
Each command word requires a different approach - using the wrong approach can cost valuable marks!
How Senior Cycle Key Competencies are demonstrated
The examination assesses not only your subject knowledge but also how you demonstrate key competencies in your answers. Examiners look for evidence of these competencies in your approach to questions, not just in your factual knowledge.
Thinking and problem-solving involves identifying problems clearly, proposing reasoned solutions, and applying critical thinking skills in both familiar and new contexts. This might involve analysing complex environmental data or evaluating the effectiveness of different climate policies.
Managing learning and self means organising your response logically and using evidence and examples effectively to support your arguments. Well-structured answers that flow logically and draw on appropriate case studies demonstrate this competency.
Being creative involves suggesting innovative scientific, technological, or nature-based solutions to environmental challenges, and adapting theoretical models to local contexts. This might include proposing creative approaches to renewable energy or sustainable agriculture.
Communicating requires writing clearly for your intended purpose and audience, using appropriate terminology and formats such as paragraphs, diagrams, or tables where suitable.
Working with others is reflected in how you discuss partnerships and collaboration in your answers, showing awareness of the roles of communities, NGOs, governments, and businesses in climate action.
Participating in society means connecting your answers to real-world actions, civic engagement, and policy processes, demonstrating understanding of how academic knowledge translates into practical action.
Cultivating wellbeing involves linking environmental quality and just transitions to human wellbeing in your responses.
All competencies are underpinned by strong literacy and numeracy skills, including reading charts, calculating percentages and changes, and interpreting maps and data visualisations.
Earth Systems, Life, and Environment strand
This strand focuses on scientific evidence for human-induced climate change, including greenhouse gas effects, enhanced greenhouse effect impacts on weather patterns, oceans, and biodiversity, as well as scientific solutions like renewables, water efficiency, and sequestration technologies.
Questions in this strand often ask you to interpret graphs showing CO₂ levels, temperature changes, sea level rise, or precipitation patterns. You may need to explain the connections between these variables, discuss uncertainties in the data, and acknowledge limitations in scientific understanding.
You might be asked to evaluate decarbonisation solutions, comparing options like wind, solar, hydro, or geothermal energy, or examining water efficiency upgrades. These questions require you to consider benefits, risks, trade-offs, and feasibility of different approaches. You could also be asked to distinguish between biological and geological sequestration methods.
Another common task involves using secondary data from sources like greenhouse gas trend records, sea level measurements, or historical climate testimony to build arguments for human causation of climate change.
Worked Example: Earth Systems Question Structure
Question: Analyse the data shown in the CO₂ concentration graph and explain the implications for global temperature rise.
DATA: Describe patterns with specific numbers - "CO₂ levels have risen from 315ppm in 1958 to 421ppm in 2023, showing a consistent upward trend with annual fluctuations."
EXPLAIN: Show cause-and-effect - "This increase is primarily due to fossil fuel combustion and deforestation, with the enhanced greenhouse effect trapping more heat in the atmosphere."
IMPLICATION: Connect to broader impacts - "This correlates with observed global temperature increases of approximately 1.1°C above pre-industrial levels, leading to accelerating ice melt and sea level rise."
A useful structure for Earth Systems questions follows the pattern: DATA → EXPLAIN → IMPLICATION. Begin by describing the patterns shown in data with specific numbers, then explain the underlying drivers and processes, and finally connect these to impacts on ecosystems and provide an evidence-based judgement about implications.
People, Power, and Place strand
This strand examines climate injustice, intersectionality, root causes like extractivism and corporate power, colonial legacies, media representation, and policy approaches including just transitions in Ireland.
Questions might ask you to evaluate Ireland's Climate Action Plan or carbon budgets, considering different stakeholders, lobbying influences, costs and benefits, rural-urban tensions, and identifying winners and losers from different policies.
You may need to compare personal versus systemic approaches to climate action, examining effectiveness, privilege, and access issues, and exploring how individual actions can contribute to collective change.
Media analysis questions could ask you to examine narratives around protests or campaigns, evaluating authenticity, identifying bias, considering whose voices are heard or marginalised, and discussing partnership roles in climate communication.
Worked Example: People, Power, and Place Analysis
STAKEHOLDERS: Identify key actors - "The just transition in the Irish Midlands involves Bord na Móna workers, local communities, environmental groups, and government agencies."
EVIDENCE: Cite relevant data - "€108 million has been allocated to support 350 jobs in new green industries, while 1,000 traditional peat jobs are being phased out."
JUSTICE: Assess fairness and alternatives - "While retraining opportunities exist, older workers face greater challenges, suggesting need for enhanced support packages and community consultation."
A helpful structure for People, Power, and Place questions is: STAKEHOLDERS → EVIDENCE → JUSTICE. Begin by identifying key actors and their interests, then cite relevant data or case study evidence, and conclude by assessing fairness, feasibility, and alternatives.
Global Connections strand
This strand covers international frameworks like UNFCCC and COP processes, Nationally Determined Contributions, Loss and Damage mechanisms, Sustainable Development Goals, Ireland's EU obligations, global supply chains, and future scenarios.
Questions might ask you to explain how commitments made at Paris Agreement or COP meetings translate into Irish policy, including specific targets, sectoral measures, and financing mechanisms.
You could be asked to discuss concepts of climate debt or ecological debt using specific examples, such as Loss and Damage funds or issues around resource extraction and land-use changes.
Future-focused questions might explore progress towards 2030 targets and beyond, examining SDG implementation, post-2030 priorities, planetary boundaries, and questions of equity and finance in global climate action.
Worked Example: Global Connections Analysis
GLOBAL: State international framework - "The Paris Agreement requires all countries to submit Nationally Determined Contributions (NDCs) with specific emissions reduction targets."
NATIONAL: Show Irish implementation - "Ireland committed to a 51% reduction in greenhouse gas emissions by 2030, translating into sectoral targets including 75% reduction in agriculture emissions."
LOCAL: Provide specific impact - "This means individual dairy farms in Cork must reduce methane emissions through improved feed efficiency and herd management practices."
A useful approach for Global Connections questions follows: GLOBAL → NATIONAL → LOCAL. Start by stating the relevant international commitment or framework, show how Ireland or the EU translates this into national policy, and conclude with a specific local example or impact.
Applying learning to real-world issues
Effective answers always connect concepts to concrete examples. Rather than discussing abstract ideas, pair each concept with a specific real-world case. For instance, when discussing biological sequestration, reference Irish peatland rewetting projects; when exploring just transition, mention Bord na Móna's transformation in the Midlands; when analysing media representation, cite specific headlines or broadcast segments.
Use numerical data whenever possible, including percentage changes, specific dates, and measurable targets. This demonstrates precision and engagement with evidence-based analysis.
Identify and discuss trade-offs inherent in different approaches. Climate and sustainability solutions often involve competing priorities, such as biodiversity conservation versus infrastructure development, economic costs versus equity considerations, or speed of implementation versus community consent.
Real-World Application Tips:
- Always pair theoretical concepts with specific, named examples
- Include precise numerical data (percentages, dates, targets)
- Discuss competing priorities and difficult choices
- Connect local examples to global patterns and frameworks
Conclude extended responses with judgements that are evidence-based and balanced, acknowledging both positive and negative aspects while suggesting realistic pathways forwards.
Effective exam technique
Several strategies can help you demonstrate your knowledge and skills effectively in the written examination.
Define concepts clearly before applying them. Start responses by explaining key ideas in your own words, then immediately connect these to specific cases or examples. This shows both conceptual understanding and practical application.
Name stakeholders and provide evidence. Demonstrate that you can recognise multiple perspectives by identifying different groups involved in climate issues and supporting your analysis with concrete evidence from case studies or data sources.
Use clear structural frameworks. Organise longer responses using frameworks like PEEL (Point → Evidence/Example → Explain → Link/Judgement) or SEEL (Similar structure with Statement, Evidence, Explanation, Link). This helps examiners follow your reasoning.
Be critical but constructive. Acknowledge both strengths and weaknesses in policies, solutions, or approaches, but always suggest realistic improvements rather than simply criticising existing efforts.
Use signposting language. Include mini-headings or linking phrases in extended responses to guide the examiner through your argument structure. This makes your response easier to follow and mark.
Essential Exam Strategies:
- Structure is crucial - Use clear frameworks like PEEL/SEEL or the strand-specific approaches
- Evidence trumps opinion - Support every point with specific examples, data, or case studies
- Balance is key - Acknowledge strengths AND weaknesses, then suggest improvements
- Be specific - Name stakeholders, cite figures, reference exact policies or projects
- Connect scales - Link global frameworks to national policies to local examples
Quick revision checklist
To prepare effectively for the written examination, ensure you can demonstrate competency in several key areas:
- Read graphs, maps, and tables confidently, describing trends using specific figures and data points
- Distinguish clearly between important concept pairs like mitigation versus adaptation, climate debt versus ecological debt, and loss and damage mechanisms
- Recall at least two Irish case studies and two Global South examples, covering policy initiatives, protest movements, community projects, and just transition examples
- Explain how international commitments made through UNFCCC/COP processes influence Irish climate targets and sectoral policies
- Evaluate trade-offs between different solutions, such as renewable energy options, water efficiency measures, sequestration approaches, and nature-based versus technological solutions
- Analyse media authenticity and bias in climate reporting while proposing partnerships to improve representation and narrative quality
Key Points to Remember:
- Read data confidently - Describe trends with specific numbers and dates
- Master key distinctions - Mitigation vs adaptation, climate debt vs ecological debt
- Know your case studies - At least 2 Irish + 2 Global South examples ready
- Trace global to local - How international agreements become local action
- Evaluate trade-offs - Weigh different solutions against competing priorities
- Analyse media critically - Identify bias, assess authenticity, suggest improvements
Remember!
Final Exam Success Tips:
- The written exam tests both your knowledge of the three strands AND your ability to apply this learning to real-world climate and sustainability challenges
- Always support your answers with specific examples, numerical data, and evidence from case studies - avoid vague, general statements
- Use appropriate command words to guide your response style: describe/define for clarity, explain for cause-and-effect, analyse for breaking down evidence, evaluate for balanced judgements
- Think like a problem-solver and communicator by analysing evidence carefully, weighing justice implications, proposing workable solutions, and writing with clarity and precision
- Structure longer responses using frameworks like PEEL/SEEL or the strand-specific approaches (DATA→EXPLAIN→IMPLICATION, STAKEHOLDERS→EVIDENCE→JUSTICE, GLOBAL→NATIONAL→LOCAL) to organise your thinking effectively