Deftly balancing four teens' perilous, climate change--related experiences, Gratz (Ground Zero) specifically centers scenarios around the earth's warming by two degrees. With urgency, the tense narrative alternates between three story lines, following 13-year-old Norwegian American Akira Kristiansen, who rides her horse through the Sierra Nevada range in California as a wildfire spreads; white 13-year-old Owen Mackenzie and his Mushkegowuk best friend George Gruyère in Churchill, Manitoba--the "polar bear capital of the world"--who are attacked by a hungry mother polar bear after they get too close to her cubs; and Puerto Rican seventh grader Natalie Torres, who must evacuate as a hurricane heads for Miami. Gratz renders pulse-pounding ecological tales and high-stakes calamity with the brisk pacing of a thriller, interweaving the cast's thoughtfully wrought plights while ensuring that all survival-oriented strands prove equally urgent. This gripping, timely tale offers a meditative call to action about a global crisis, culminating in a tidy, if didactic, resolution. Ages 8--12. (Oct.)

Gr 4--7--A fictional story about climate change geared for the middle grade audience. It is told through the eyes of four middle school students, all individuals battling climate disasters in North America; the parallel plots are linked by climate events. In Nevada, Japanese American Akira Kristiansen witnesses giant sequoias catching fire, which seems impossible. She is separated from her family as she struggles to survive the extraordinary wildfire. In Manitoba, eighth grade boys Owen Mackenzie (white) and George Gruyère (Mushkegowuk) face ravenous polar bears. In Miami, Puerto Rican Florida resident Natalie Torres is washed away by a hurricane. All characters suffer losses and scars. Gratz writes at the end of the book that he was inspired by Greta Thunberg and other climate protestors and wanted to boost their signal. The chapters are short and flow well enough to keep the reader's attention. Gratz drives home the point that we are all very closely connected when it comes to climate change, and that everyone should be looking at the big picture. VERDICT Gratz urges readers to see that what is happening around them isn't in isolation, but affects everyone around the world. Fans of Gratz and the "I Survived" series will welcome this action-packed title.--Lisa Gieskes

In parallel narratives, four young people simultaneously experience the harrowing effects of climate change. If terrifying readers is an effective way to spur them to take the climate crisis seriously, Gratz does an admirable job, as he plunges his middle schoolers into desperate, life-threatening straits in three wildly dangerous scenarios. For Akira Kristiansen, a peaceful visit to a treasured grove of Sierra Nevada giant sequoias turns into a frantic scramble to outrace a roaring megafire. In Churchill, Manitoba, eighth grade dudes Owen Mackenzie, a White boy, and George Gruyère (Mushkegowuk) are viciously mauled and then stalked by polar bears. At the same time, Puerto Rican Florida resident Natalie Torres is whirled off in the storm surge when a Category 5 hurricane hits Miami. Along with acknowledging in his afterword that the specific incidents portrayed are fictional but are inspired by actual events happening around the world, not just in North America, the author pulls his characters--dedicated climate activists all in the wake of their narrow escapes from death--together to deliver speeches at an international climate rally at the end. "It's your world," Gratz finishes in his author's note, "your future. It's up to you to decide what you want that future world to look like, and what you can do to make it happen." Lecture-y toward the end, but the scary message is delivered with wrenching, dramatic urgency. (Fiction. 9-13) Copyright (c) Kirkus Reviews, used with permission.