VOA慢速英语:Terrorism, Tragedy Top World News in 2015

satire - n. using humor to show that someone or something is bad; satirical - adj.

radicalized – adj. to cause someone to become more radical, especially in politics

strict - adj. complete or thorough

greenhouse gases – n. pollutants linked to climate change

compassion – n. not as important or valuable as something else

tolerance – n. willingness to accept feelings, habits, or beliefs that are different from your own

advocacy – n. the act or process of supporting a cause or proposals

underway - adv. happening now

challenge – n. a difficult task or problem

renewed – adj.  to do something again