This document provides an overview of global warming, including:
- Global warming is the rise in average temperature of Earth's atmosphere and oceans since the late 19th century, likely due to human emissions of greenhouse gases.
- Key causes of global warming include carbon dioxide emissions from fossil fuels, increased chemical fertilizer use, deforestation, and methane emissions.
- Effects of global warming include rising sea levels worldwide, more severe storms, massive crop failures, widespread species extinction, and disappearance of coral reefs.
- Responses to global warming involve mitigating further warming through emissions reduction, adapting to impacts, and potential future climate engineering projects.