Strata

'Pratchett's writing is a constant delight' Daily Mail THE COMPANY BUILDS PLANETS. Kin Arad is a high-ranking official of the Company. After twenty-one decades of living, and with the help of memory surgery, she is at the top of her profession. Discovering two of her employees have placed a fossilized plesiosaur in the wrong stratum, not to mention the fact it is holding a placard which reads, 'End Nuclear Testing Now', doesn't dismay the woman who built a mountain range in the shape of her initials during her own high-spirited youth. But then came discovery of something which did intrigue Kin Arad. A flat earth was something new...

'Pratchett's writing is a constant delight' Daily Mail THE COMPANY BUILDS PLANETS. Kin Arad is a high-ranking official of the Company. After twenty-one decades of living, and with the help of memory surgery, she is at the top of her profession. Discovering two of her employees have placed a fossilized plesiosaur in the wrong stratum, not to mention the fact it is holding a placard which reads, 'End Nuclear Testing Now', doesn't dismay the woman who built a mountain range in the shape of her initials during her own high-spirited youth. But then came discovery of something which did intrigue Kin Arad. A flat earth was something new...

The epic stories of our planet’s 4.54-billion-year history are written in strata—ages-old remnants of ancient seafloors, desert dunes and riverbeds striping canyon walls and cliffsides all around us. These layers of rock help geologists piece together how our planet became the place we know and gather context for modern change. In Strata, Laura Poppick travels across the globe to show us how to decipher these primeval plotlines. Digging into four moments of transformation that shaped Earth and made our lives possible—from the first accumulations of oxygen in the atmosphere to the deep freeze of “Snowball Earth”, the rise of mud on land and the dinosaurs’ reign on a hothouse planet—we see how the arc of geologic time bends toward stability. Beautifully grounding and laced with awe, Strata unveils the wisdom and hope for our times these rocks can hold.

The epic stories of our planet's 4.54-billion-year history are written in strata--ages-old remnants of ancient seafloors, desert dunes, and riverbeds striping landscapes around the world. In this brilliantly original debut work, science writer Laura Poppick decodes strata to lead us on a journey through four global transformations that made our lives on Earth possible: the first accumulations of oxygen in the atmosphere; the deep freezes of "Snowball Earth"; the rise of mud on land and accompanying proliferation of plants; and the dinosaurs' reign on a hothouse planet Poppick introduces us to the researchers who have devoted their careers to understanding the events of deep time, including the world's leading stegosaur scientist. She travels to sites as various as a Minnesotan iron mine that runs half a mile deep and a corner of the Australian Outback where glacial deposits date from the coldest times on Earth. Ultimately, she demonstrates that the planet's oceans, continents, atmosphere, life, and ice have always conspired to bring stability to Earth, even if we are only just beginning to understand how these different facets interact. A work in the tradition of John McPhee, Strata allows us to observe how the planet has responded to past periods of environmental upheaval, and shows how Earth's ancient narratives could hold lessons for our present and future.