This document discusses the causes and effects of global warming. It states that the main causes of climate change are greenhouse gases like carbon dioxide, methane, and nitrous oxide which are emitted through industrialization, traffic, deforestation, and forest fires. Some of the effects of global warming mentioned include coral bleaching, extinction of coral species, and increased public health threats especially for vulnerable groups. The document also provides a brief overview of the Kyoto Protocol which aims to reduce greenhouse gas emissions but has not been ratified by all countries.