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This middle school science passage, aligned with NGSS standards MS-ESS3-4 and MS-ESS3-5, explores the mechanisms and solutions for addressing climate change. Students will learn how rising greenhouse gases impact Earth's systems and how mitigation strategies like renewable energy, energy efficiency, reforestation, and carbon capture work together with adaptation efforts and policy measures such as carbon pricing and international agreements. The passage integrates scientific thinking, cause-and-effect relationships, and real-world quantitative data, empowering students to understand both technological and individual actions for a more sustainable future. The resource includes Spanish translations, differentiated versions, glossary, quizzes, writing activities, and graphic organizers, with full audio integration for accessibility. This comprehensive approach helps students connect science to global society and their daily lives.
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Addressing climate change
Climate change is a major challenge affecting Earth's weather patterns, sea levels, and ecosystems. Scientists have confirmed that human activities, like burning fossil fuels for energy, release large amounts of greenhouse gases such as carbon dioxide into the atmosphere. These gases trap heat, causing Earth's average temperatures to rise—a process known as global warming. The impacts include more frequent heatwaves, stronger storms, melting glaciers, and rising oceans, threatening both natural environments and human societies.
Mechanisms of Climate Change and Mitigation
The main driver of climate change is the increase in greenhouse gases, which act like a blanket around the planet. To slow down or reduce climate change, scientists and engineers focus on mitigation—actions that limit or prevent further emissions. One important strategy is switching to renewable energy sources like solar, wind, and hydropower, which produce electricity without polluting the air. Increasing energy efficiency in buildings, factories, and transportation also reduces energy waste. For example, LED lights use about 75% less energy than traditional bulbs. Reforestation, or planting new trees, removes carbon dioxide from the air because trees absorb CO2 during photosynthesis. New technology, such as carbon capture, can trap CO2 from factories and power plants before it enters the atmosphere. These efforts work together to slow the pace of climate change.
Adaptation, Policy, and Individual Actions
Even with mitigation, some climate changes are unavoidable, so communities must also focus on adaptation. This means preparing for impacts by building flood defenses, changing farming methods, or developing drought-resistant crops. Governments and organizations use policy tools like carbon pricing, which charges companies for emitting greenhouse gases. International agreements, such as the Paris Agreement, encourage countries to work together to reduce emissions. Individuals can help by using public transportation, reducing energy use, or eating less meat, which can lower their carbon footprint. Technology solutions, like smart grids and electric vehicles, also help society adapt and reduce emissions.
Systems Thinking and Hope for the Future
Addressing climate change requires systems thinking—understanding how energy, technology, policy, and human behavior interact. Scientific research provides evidence that coordinated actions can make a real difference. For example, the European Union reduced greenhouse gas emissions by over 20% between 1990 and 2020 by combining renewable energy policies and efficiency measures. While the challenge is complex, every step—from planting a tree to changing international laws—contributes to a more sustainable planet. The choices society makes today will shape the Earth's climate for generations to come.
Interesting Fact: Every hour, the sun provides enough energy to power the entire Earth for a year if it could be fully captured and used.
What is the main cause of climate change described in the passage?
The increase in greenhouse gases from human activitiesChanges in the sun's energy outputNatural cycles in Earth's temperatureMore volcanic eruptions
Which of the following is an example of mitigation?
Planting trees to absorb carbon dioxideBuilding sea walls to protect from floodsDeveloping drought-resistant cropsRelocating coastal towns
What is adaptation in the context of climate change?
Preventing all greenhouse gas emissionsPreparing for climate impacts and reducing harmBuilding more factoriesIncreasing fossil fuel use
How can individuals help reduce their carbon footprint?
By using public transportation and saving energyBy using more fossil fuelsBy eating more meatBy ignoring climate policies
What does 'energy efficiency' mean in the passage?
Using less energy for the same taskProducing more pollutionWasting more energyBuilding more power plants
What does the term 'carbon capture' refer to?
A process that traps carbon dioxide before it reaches the atmosphereA way to plant more treesA type of renewable energyAn international agreement
Why are international agreements like the Paris Agreement important?
They encourage countries to work together to reduce emissionsThey increase fossil fuel useThey raise sea levelsThey make people use more energy
If a city builds flood defenses to prepare for rising sea levels, what action is this?