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Lesson 2: Climate Change

What is climate change and why is it important to act now?

This module breaks down the science behind climate change and answers what climate change is, how it works, why it happens, how human activity is connected to it and why we are running out of time. This module focuses on the root causes of climate change and looks at how we know what we know.

In simple terms we will cover the difference between climate and weather, the greenhouse gas effect, why temperatures change, the role of CO2 emissions and other green house gases, the carbon cycle, the drivers of climate change, current emissions, how we know climate change is caused by humans. We look at how climate change is measures today with climate change indicators, where past data is coming from and how we can predict future climate with climate models. We’ll look at tipping points, the potential consequences of surpassing the critical 1.5°C threshold set by the Paris Agreement, methane leaks, and how climate models predict the future of our planet.

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What to do with this

All 3 actions for this lesson. Open an action to explore its tools, products and companies. Actions are ordered by impact rating.

  • Start here

    Individual

    An in depth knowledge of climate science and numbers will help you make better decisions and have more impactful conversations.

    ImpactEffort
  • Individual

    Do the Climate Guide, a comprehensive video course on climate change and individual action. Learn about the climate crisis, its ties to daily life, and the impactful steps you can take to help mitigate it. By completing the climate actions in the climate guide, you will create the biggest impact an individual can have! Try adding this action to your account, by clicking **"🎯 I am working on it"**.

    ImpactEffort
  • Community

    Expand your impact by inviting a friend to join the Climate Guide. Together, you can learn, act, and make a significant difference in tackling climate change. The more people we reach and involve in climate action, the greater the collective impact. Your invitation could set off a ripple effect of change.

    ImpactEffort

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