Understanding climate change is often presented as a technical challenge, something reserved for experts, models, and graphs. But climate change is not only a scientific problem. It is a lived experience, a moral question, and an emotional one. It shapes how we eat, travel, work, relate to nature, and imagine the future. It affects who is safe and who is exposed, who benefits and who pays the price.

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This A to Z guide is not a glossary. It does not aim to provide neat definitions or simplified answers. Instead, it offers a map, one that connects scientific knowledge with everyday life, emotions, responsibility, and justice. Each letter opens a door to a concept that helps make sense of the climate emergency, not as something abstract or distant, but as something deeply human.

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I created this guide because understanding the science behind climate change is not enough on its own. Knowledge should help us orient ourselves, ask better questions, and shape what we can do today. We already know that carbon pollution from fossil fuels is warming our planet and disrupting natural systems. We see the impacts everywhere, from rising temperatures and sea level rise to climate-driven migration, droughts, and increasingly destructive wildfires. These changes threaten ecosystems, human health, and collective survival, placing the future of coming generations at risk.

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What is less clear, and often harder to talk about, is how all these pieces fit together, how systems, emotions, power, and choices interact, and what responsibility means in a world so deeply interconnected. This A to Z guide is an invitation to slow down, reflect, and reconnect science with meaning. It is written for those who may not see themselves as “into science,” but who deserve tools to understand what is happening to the world they live in.