This document outlines the key aspects of climate change, including its causes and effects. It explains that climate change is being driven by human activities that release greenhouse gases like carbon dioxide, methane, and nitrous oxide into the atmosphere from sources such as burning fossil fuels, agriculture, and manufacturing. This is trapping heat and causing the planet to warm up. The rising temperatures are already affecting the environment through melting glaciers, rising sea levels, shifting plant and animal ranges, and more frequent extreme weather. The document discusses efforts to reduce greenhouse gas emissions through renewable energy, electric vehicles, and international agreements, but notes more action is still needed globally to avoid serious consequences of climate change like mass species extinctions and crop failures.