Planet Earth and the other bodies of the Solar System are 4.5 billion years old. They reside in a galaxy (the Milky Way Galaxy) that is 12-14 billion years old, and are part of a universe that is 13-15 billion years old. In Ancient Earth, Ancient Skies, G. Brent Dalrymple, a geologist and widely recognized expert on the age of Earth, reviews the evidence that has led scientists to these conclusions and describes the methods by which this evidence has been gathered.

We need a new philosophy of the earth. Geological time used to refer to slow and gradual processes, but today we are watching land sink into the sea and forests transform into deserts. We can even see the creation of new geological strata made of plastic, chicken bones, and other waste that could remain in the fossil record for millennia or longer. Crafting a philosophy of geology that rewrites natural and human history from the broader perspective of movement, Thomas Nail provides a new materialist, kinetic ethics of the earth that speaks to this moment. Climate change and other ecological disruptions challenge us to reconsider the deep history of minerals, atmosphere, plants, and animals and to take a more process-oriented perspective that sees humanity as part of the larger cosmic and terrestrial drama of mobility and flow. Building on his earlier work on the philosophy of movement, Nail argues that we should shift our biocentric emphasis from conservation to expenditure, flux, and planetary diversity. Theory of the Earth urges us to rethink our ethical relationship to one another, the planet, and the cosmos at large.

A synthesis of all that has been postulated and is known about the age of the Earth

Increasingly, business leaders are tasked with developing new products, services, and business models that minimize environmental impact while driving economic growth. It's a tall order—and a call that is only getting louder. In Can Business Save the Earth?, Michael Lenox and Aaron Chatterji explain just how the private sector can help. Many believe that markets will inevitably demand sustainable practices and force them to emerge. But Lenox and Chatterji see it differently. Based on more than a decade of research and work with companies, they argue that a bright green future is only possible with dramatic innovation across multiple sectors at the same time. To achieve this, a broader ecosystem of players—including inventors, executives, customers, investors, activists, and governments—all must play a role. The book outlines how and the extent to which each group can serve as a driver of green growth. Then, Lenox and Chatterji identify where economic incentives currently exist, or could exist with institutional change, and ultimately address the larger question of how far well-coordinated efforts can take us in addressing the current environmental crisis.