The document discusses global warming facts and effects. It states that in the 20th century, the average global temperature increased by 0.74°C and carbon dioxide levels in the atmosphere rose from 280 parts per million to 383 parts per million. Some potential effects of rising temperatures include rising sea levels, changes in rainfall patterns, threats to animal habitats, and increased extreme weather events like hurricanes and droughts. The document calls for reducing fossil fuel use and emissions to help mitigate the impacts of climate change.