The document discusses climate change, its causes, and effects. It defines climate as the average weather conditions in a place over many years, while weather is the short-term conditions. It then explains that climate change refers to significant changes in temperature, precipitation or wind patterns over decades or longer. The major causes of climate change discussed are increased greenhouse gas emissions from human activities like burning fossil fuels and deforestation, as well as some natural factors. The document outlines several effects of climate change like more extreme weather, worsening air pollution, rising sea levels, damage to oceans and ecosystems, and health impacts. In the end it discusses some potential solutions to address climate change.