Mostrando títulos en Ciencias Geológicas

A fascinating, comprehensive, accessible account of conodont fossils—one of paleontology's greatest mysteries. Simon J. Knell takes the listener on a journey through 150 years of scientific thinking, imagining, and arguing. Slowly the animal begins to reveal traces of itself: its lifestyle, its remarkable evolution, its witnessing of great catastrophes, its movements over the surface of the planet, and finally its anatomy. Today the conodont animal remains perhaps the most disputed creature in the zoological world.

In Born in Africa, Martin Meredith follows the trail of discoveries about human origins made by scientists over the last hundred years, recounting their intense rivalry, personal feuds, and fierce controversies, as well as their feats of skill and endurance. The results have been momentous. Scientists have identified more than 20 species of extinct humans. They have firmly established Africa as the birthplace not only of humankind but also of modern humans.

The big media have spoken on the question of global warming, and the debate is officially over. "Be afraid, be very afraid", warns Time magazine. But have Al Gore and his environmentalist allies really proven their case? Not even close, says Christopher C. Horner.

In this fresh and powerful work of environmental history, Martin Doyle explores how rivers have often been the source of arguments at the heart of the American experiment - over federalism, taxation, regulation, conservation, and development. Doyle tells the epic story of America and its rivers, from the US Constitution's roots in interstate river navigation, the origins of the Army Corps of Engineers, the discovery of gold in 1848, and the construction of the Hoover Dam and the TVA during the New Deal, to the failure of the levees in Hurricane Katrina.

Renowned scientist and best-selling author Jane Goodall delivers an eye-opening and empowering book that explores the social and personal significance of what we eat. In Harvest for Hope, Jane Goodall presents an empowering and far-reaching vision for social and environmental transformation through the way we produce and consume the foods we eat.

From East Africa to southwest USA, many regions of the Earth’s continental lithosphere are rifting. We see evidence of past rifting along the passive margins of continents that were once contiguous but are now separated by wide oceans. How does something as apparently solid and durable as a continent break apart?In the podcast, Folarin Kolawole describes the various phases of rifting, from initial widespread normal faulting to the localization of stretching along a rift axis, followed by rapid extension and eventual breakup and formation of oceanic lithosphere.Kolawole is especially ...

In Earth, a planetary scientist and a literary humanist explore what happens when we think of the Earth as an object viewable from space. As a “blue marble,” “a blue pale dot,” or, as Chaucer described it, “this litel spot of erthe,” the solitary orb is a challenge to scale and to human self-importance. Beautiful and self-contained, the Earth turns out to be far less knowable than it at first appears: its vast interior an inferno of incandescent and yet solid rock and a reservoir of water vaster than the ocean, a world within the world.

Why do some plants grow where they do? How can geology cause new plant species to evolve? Why are some plants pollinated by flies, some by bats, some by birds, and others by bees? How does a plant evolve to look like a rock? How can destroying lawns soothe the soul? This is a show about plants and plant habitat through the lens of natural selection and ecology, with a side of neurotic ranting, light humor, occasional profanity, & the perpetual search for the filthiest taqueria bathroom.

This podcast explores how we know what we know about turfgrass science. If you are a lawn care operator, sport field manager, sod producer, golf superintendent, or a home owner, this podcast provides evidence-based information to help you better manage your turfgrass.

Approximately 200,000 years ago, as modern humans began to radiate out from their evolutionary birthplace in Africa, Neanderthals were already thriving in Europe - descendants of a much earlier migration of the African genus Homo. But when modern humans eventually made their way to Europe 45,000 years ago, Neanderthals suddenly vanished.

Hace unos 4.000 millones de años apareció la vida en la Tierra. ¿Cuál es la historia de su evolución? ¿Era inevitable la vida? ¿Y la raza humana? ¿La habría habitado algún otro ser inteligente, si no hubiera habido humanos? ¿Qué patrones usa el mecanismo evolutivo? ¿La evolución avanza hacia adelante como una flecha?

This riveting collection of adventure writing includes the work of The Perfect Storm author, Sebastian Junger. Listen as men and women battle the elements, and often each other, to stay alive, confronting sharks, savage storms, rogue waves, mountainous icebergs, starvation, and their own fear and suffering.

Thirty thousand years ago our prehistoric ancestors painted perfect images of animals on walls of tortuous caves, most often without any light. How was this possible? Scholars and archaeologists have for centuries pored over these works of art, speculating and hoping to come away with the key to the mystery. David and Lefrre give us a new understanding of an art lost in time, revealing what had until recently remained unexplainable - the oldest enigma in humanity has been solved.

You've heard of Pangea, the single landmass that broke apart some 175 million years ago to give us our current continents, but what about its predecessors, Rodinia or Columbia? These "supercontinents" from Earth's past provide evidence that land repeatedly joins and separates. While scientists debate what that next supercontinent will look like—and what to name it—they all agree: one is coming.

"The climate crisis may at times appear to be happening slowly, but in fact it is happening very quickly - and has become a true planetary emergency....[I]nconvenient truths do not go away just because they are not seen. Indeed, when they are not responded to, their significance doesn't diminish; it grows." -Al Gore

In Underland, Robert Macfarlane takes us on a journey into the worlds beneath our feet. From the ice-blue depths of Greenland's glaciers to the underground networks by which trees communicate, from Bronze Age burial chambers to the rock art of remote Arctic sea caves, this is a deep-time voyage into the planet's past and future.

In this Very Short Introduction audiobook, David Norman discusses how dinosaurs were first discovered and interpreted and how our understanding of them has changed over the past 200 years. He looks at some of the amazing discoveries that have enabled us to gain new and unexpected insights into dinosaurs as animals with natural histories and behaviors and considers some of the biggest questions in dinosaur biology, such as the implications of them having warm blood.

In a book that will recalibrate our view of this defining feature of our planet, physicist Helen Czerski dives deep to illuminate the murky depths of the ocean engine, examining the messengers, passengers and voyagers that live in it, travel over it, and survive because of it. From the ancient Polynesians who navigated the Pacific by reading the waves to permanent residents of the deep such as the Greenland shark that can live for hundreds of years, she explains the vast currents, invisible ocean walls and underwater waterfalls that all have their place in the ocean's complex system.

A show about regenerative flower farming. Hosted by Jennie Love of Love 'n Fresh Flowers, a flower farm in Philadelphia.

Most of us who have an interest in the planet we live on have seen diagrams showing the Earth’s interior. We are told it is very hot and made of iron. Is this really true? How far have we actually “dug down” to find this “hot ball of iron”? Where did our enormous oceans come from and have they always been here? And anyway, how did our planet form? Have you ever looked at a map and noticed how the west coast of Africa seems to fit against the east coast of South America – as if they were pieces of some enormous continental jigsaw? Has our planet always been the same size, or has ...