This document discusses global warming, its causes, effects, and potential solutions. Global warming refers to the rise in average surface temperatures due to greenhouse gas emissions. The main causes are gases like carbon dioxide, methane and ozone that are trapping heat in the atmosphere. Some effects of global warming include rising sea levels, more extreme weather, and melting glaciers and ice caps. To address global warming, the document suggests reducing fossil fuel usage and pollution, using renewable energy, and raising awareness through small local actions.