How Light Makes Life: The Hidden Wonders and World-Saving Powers of Photosynthesis

“Photosynthesis is the original, largest, and most powerful ‘Net Negative’ technology ever,” writes biophysicist Jovine in his accessible debut, a survey of all things photosynthetic. Setting out to “communicate at least some of that tingle of glee and wonderment scientists feel when [they] get the chance to reveal a tiny facet of the magic of nature,” he begins with an introduction to photosynthesis, laying out what it is and its discovery, which involved an 18th-century clergyman conjecturing that light might be an energy source for plants. That photosynthesis can create “forests, food, and wealth from nothing but air, sun, water, and the Earth,” Jovine asserts, remains a marvel. The author bemoans the destruction of forests, coral reefs, and savannas to make way for “shipping lanes, fields, and roads,” and outlines ways that photosynthesis can play a role in mitigating environmental damage. Revamping farming and livestock grazing practices can improve soil health, for instance, and something as straightforward as planting more trees really does make a difference. Jovine keeps a casual tone, and his enthusiasm makes him a great guide. Readers will be left convinced that “help[ing] our amazing photosynthetic friends” is a worthy endeavor. (Apr.)