A 25-year-old New Zealand lawmaker on Tuesday offered a blunt response to a colleague who apparently heckled her during a speech she gave addressing the urgency of climate change on the floor of Parliament: “OK, boomer.” Chlöe Swarbrick, a member of the Green Party, expressed the statement as she emphasized how the consequences of climate change will fall on people of her generation. As she expressed support for legislation to reach net-zero greenhouse gas emissions by 2050, Swarbrick noted how she would be around the age of the average lawmaker in Parliament by that time. "We are in a climate...