The document discusses the climate crisis and efforts to address it. It notes that 2019 was the second hottest year on record, closing out the hottest decade, according to NASA and NOAA. While some weather events can't be attributed to climate change, the trends of increasing temperatures and extremes are clear signs of human impacts. Young activists led by Greta Thunberg are bringing new urgency to calls for action. However, convincing climate change skeptics may not be the most effective strategy; instead, efforts should focus on mobilizing the majority already concerned about climate change to demand policy changes.