It’s Friday! Start your weekend with penguins, bike helmets, and the beginning of the end of “ok, boomer.”

Happening in the World: Chlöe Swarbrick, a 25-year-old politician from New Zealand, said “OK, boomer” to silence an older MP during a speech she gave in Parliament earlier this week. “I think I’m responsible for killing the meme,” she said later. (She was speaking in favor of the Zero Carbon Bill, which aims to completely halt carbon emissions in New Zealand by 2050. The historic bill was voted into law on Thursday.) (BBC)

Happening in the US: On Tuesday, voters in Tucson strongly rejected a measure that would have turned the city into a sanctuary for migrants. Tucson is historically pro-immigration—a blue dot in a red state—but the 71% of voters who rejected Proposition 205 seemed to think that the initiative went too far. (NYT)

Happening in NYC: At a press conference on Wednesday, Mayor Bill de Blasio suggested that he’s considering a law forcing city cyclists to wear helmets. Acknowledging evidence that mandatory helmet laws have been shown to discourage people from cycling in other major cities, de Blasio said, “I hear that. I really do. But we have to have an honest conversation about the value of bike helmets.” Opponents of the change argue that such a law might put an end to the Citi Bike program. (Gothamist)

Happening on Campus: Today is the Columbia Climate Change Task Force Student Town Hall (call it CUCCTFSH for short). All students are invited to attend the event—in Low Library from 3 to 4 pm—for the chance to share their ideas about what Columbia could be doing to better address climate change. Earth Institute Director Alex Halliday, GSAPP Dean Amale Andraos, and Professor Courtney Cogburn will be there to answer students’ questions.

Something interesting I learned this week: Zoos sometimes use traffic cones that have been cut in half as restraints for penguins in MRI machines. They’re laid down sideways, and their heads stick out the smaller end while their feet come out the bottom. This system prevents the penguins from wiggling around if they need to be scanned while they’re awake. The penguins don’t love it, but the zookeepers do.

Edwin the sanguine penguin, shaped like a tenpin, blends in via Pixabay