The document discusses global warming and climate change. It explains that global warming is caused by greenhouse gases like carbon dioxide and methane trapping heat in the atmosphere. The average global temperature has increased at the fastest rate in recorded history over the past 50 years. While short term temperature increases may not seem significant, long term rising temperatures could seriously impact the planet if not addressed. The document encourages small individual actions like reducing energy use and recycling to help mitigate the effects of climate change.