Have a look at what happened around the world this past month. Australia’s heat wave filled headlines when temperatures reaching 45° Celsius disrupted the Australian Open tennis tournament. California’s extreme drought forced the governor to declare a state of emergency. Major floods in Indonesia killed dozens and displaced tens of thousands. Beijing’s coal-induced smog forced people to stay in their homes, closed highways, and diverted flights. Such events are daily warnings to the world: wake up before it is too late.