The document discusses the causes and effects of climate change due to human activity. It states that the main causes are greenhouse gas emissions and CO2 admissions from human activities like deforestation and burning fossil fuels. This has led to rising global temperatures and is melting glaciers and arctic ice, threatening wildlife habitats and coastal communities as sea levels rise. Coral reefs and some animals also face extinction. The document suggests some actions individuals can take like promoting clean energy, driving more efficient vehicles, and recycling to help address these issues.