James Lawrence Powell – författare

A groundbreaking chronicle of scientific ocean drilling—a crowning achievement of the twentieth century—and how it shaped our knowledge of Earth's past.Under the radar—or, rather, sonar—of most people and many scientists, for the last six decades ships have plied the world’s oceans, mining the seafloor for its secrets—and quietly resolving confounding geological mysteries. Continental drift and plate tectonics. The origin of the Hawaiʻian Islands. The erstwhile disappearance of the Mediterranean. The mystery of the ice ages. All are part of the story told by deep-sea drilling—and chapters in the history that unfolds in Mysteries of the Deep. In a series of vignettes ranging from the voyage of the HMS Challenger in the 1870s to the adventures of research ship Chikyū in the 2020s, James Powell recounts the surprises the seafloor has yielded to the probing of scientists.With a global, sometimes even extraterrestrial scope and a scientific reach that extends to every corner of geology and astrobiology, Powell’s work recounts how cores extracted from the ocean floor have:·      produced insights into microbial life on Mars and the end of dinosaurs’ tenure on Earth·      demonstrated that astronomical cycles control many geological events, and even human evolution·      used a past episode of global warming to reveal the peril of high temperatures today·      shown that global warming could melt enough Antarctic ice to drown the seacoastsThe mysteries uncovered by deep-sea drilling, and covered by Powell in this eye-opening book, are many and various, often surprising and sometimes alarming—consequential not just for the science of the seafloor, but for how we learn about our planet's past and what we can do about its future.

Over the course of the twentieth century, scientists came to accept four counterintuitive yet fundamental facts about the Earth: deep time, continental drift, meteorite impact, and global warming. When first suggested, each proposition violated scientific orthodoxy and was quickly denounced as scientific-and sometimes religious-heresy. Nevertheless, after decades of rejection, scientists came to accept each theory. The stories behind these four discoveries reflect more than the fascinating push and pull of scientific work. They reveal the provocative nature of science and how it raises profound and sometimes uncomfortable truths as it advances. For example, counter to common sense, the Earth and the solar system are older than all of human existence; the interactions among the moving plates and the continents they carry account for nearly all of the Earth's surface features; and nearly every important feature of our solar system results from the chance collision of objects in space. Most surprising of all, we humans have altered the climate of an entire planet and now threaten the future of civilization.This absorbing scientific history is the only book to describe the evolution of these four ideas from heresy to truth, showing how science works in practice and how it inevitably corrects the mistakes of its practitioners. Scientists can be wrong, but they do not stay wrong. In the process, astonishing ideas are born, tested, and over time take root.

The Moon is the most viewed object in the sky, the Sun being too bright to look at directly and the planets too far away. The Greeks deduced everything that could be learned about the Moon using only the naked eye, including that it has no light of its own but reflects that of the Sun. They understood the cause of eclipses and used the Earth's shadow on the Moon to conclude that our planet is a sphere and to calculate the size of both the Moon and the Earth. The invention of the telescope some two millennia later offered the opportunity for much greater understanding, but the early observers became sidetracked onto a dead end: First, they fooled themselves into believing that they saw evidence of life on the Moon, even the works of a civilization. Second, they became convinced that the craters of the Moon were volcanoes like those we have on the Earth. These wrong-headed beliefs took centuries to dispel. The origin of the Moon itself has proven an even more difficult question, but scientists have now closed in on the answer. They find that our placid and seemingly unchanging Moon was born in colossal violence as a planet the size of Mars crashed into the primordial Earth and flung off a blob that solidified to become our heavenly companion. Unlocking the Moon's Secrets follows these developments to show how science evolves, complete with misunderstandings, contentious arguments, difficult to relinquish assumptions, and shifting views as new facts come to light. Thanks to the work of generations of determined scientists, we understand our Moon, at last.

The Moon is the most viewed object in the sky, the Sun being too bright to look at directly and the planets too far away. The Greeks deduced everything that could be learned about the Moon using only the naked eye, including that it has no light of its own but reflects that of the Sun. They understood the cause of eclipses and used the Earth''s shadow on the Moon to conclude that our planet is a sphere and to calculate the size of both the Moon and the Earth. The invention of the telescope some two millennia later offered the opportunity for much greater understanding, but the early observers became sidetracked onto a dead end: First, they fooled themselves into believing that they saw evidence of life on the Moon, even the works of a civilization. Second, they became convinced that the craters of the Moon were volcanoes like those we have on the Earth. These wrong-headed beliefs took centuries to dispel. The origin of the Moon itself has proven an even more difficult question, but scientists have now closed in on the answer. They find that our placid and seemingly unchanging Moon was born in colossal violence as a planet the size of Mars crashed into the primordial Earth and flung off a blob that solidified to become our heavenly companion. Unlocking the Moon''s Secrets follows these developments to show how science evolves, complete with misunderstandings, contentious arguments, difficult to relinquish assumptions, and shifting views as new facts come to light. Thanks to the work of generations of determined scientists, we understand our Moon, at last.

The Moon is the most viewed object in the sky, the Sun being too bright to look at directly and the planets too far away. The Greeks deduced everything that could be learned about the Moon using only the naked eye, including that it has no light of its own but reflects that of the Sun. They understood the cause of eclipses and used the Earth''s shadow on the Moon to conclude that our planet is a sphere and to calculate the size of both the Moon and the Earth. The invention of the telescope some two millennia later offered the opportunity for much greater understanding, but the early observers became sidetracked onto a dead end: First, they fooled themselves into believing that they saw evidence of life on the Moon, even the works of a civilization. Second, they became convinced that the craters of the Moon were volcanoes like those we have on the Earth. These wrong-headed beliefs took centuries to dispel. The origin of the Moon itself has proven an even more difficult question, but scientists have now closed in on the answer. They find that our placid and seemingly unchanging Moon was born in colossal violence as a planet the size of Mars crashed into the primordial Earth and flung off a blob that solidified to become our heavenly companion. Unlocking the Moon''s Secrets follows these developments to show how science evolves, complete with misunderstandings, contentious arguments, difficult to relinquish assumptions, and shifting views as new facts come to light. Thanks to the work of generations of determined scientists, we understand our Moon, at last.

Today, when global warming denial and vaccination denial are alarmingly prevalent, it is crucial to understand that throughout history, science denial at the state level has cost scores of millions of lives. In the Soviet Union under Stalin, Lysenko's denial of genetics led to disastrous agricultural policies, resulting in the persecution and execution of dissenting scientists and widespread famine. A similar tragedy unfolded in Mao's China, where the wholesale adoption of Lysenkoism contributed to a famine that claimed an estimated 45 million lives. In Germany starting in the 1930s, Adolf Hitler made state policy of Nazi eugenics, a twisted theory which held that some races are superior to others. This led first to the murder of disabled persons, including children, and then to the smoking chimneys of the Holocaust. President Mbeki of South Africa conducted his own internet research and rejected a virtually unanimous scientific consensus to conclude that HIV does not cause AIDS and that folk remedies are preferable to anti-retroviral drugs, costing an estimated 330,000 deaths. In this century, in Brazil and the United States, Presidents Jair Bolsonaro and Donald Trump rejected medical advice to downplay the danger of the COVID-19 virus and discourage protective measures, causing many unnecessary deaths. The two of them and today's Republican party reject the consensus among scientists that manmade global warming is true, thus choosing to deny and ignore the greatest threat that humanity has ever faced. Doomsday has not yet arrived, but we can see it from here and time is running out.

Today, when global warming denial and vaccination denial are alarmingly prevalent, it is crucial to understand that throughout history, science denial at the state level has cost scores of millions of lives. In the Soviet Union under Stalin, Lysenko's denial of genetics led to disastrous agricultural policies, resulting in the persecution and execution of dissenting scientists and widespread famine. A similar tragedy unfolded in Mao's China, where the wholesale adoption of Lysenkoism contributed to a famine that claimed an estimated 45 million lives. In Germany starting in the 1930s, Adolf Hitler made state policy of Nazi eugenics, a twisted theory which held that some races are superior to others. This led first to the murder of disabled persons, including children, and then to the smoking chimneys of the Holocaust. President Mbeki of South Africa conducted his own internet research and rejected a virtually unanimous scientific consensus to conclude that HIV does not cause AIDS and that folk remedies are preferable to anti-retroviral drugs, costing an estimated 330,000 deaths. In this century, in Brazil and the United States, Presidents Jair Bolsonaro and Donald Trump rejected medical advice to downplay the danger of the COVID-19 virus and discourage protective measures, causing many unnecessary deaths. The two of them and today's Republican party reject the consensus among scientists that manmade global warming is true, thus choosing to deny and ignore the greatest threat that humanity has ever faced. Doomsday has not yet arrived, but we can see it from here and time is running out.

Today, when global warming denial and vaccination denial are alarmingly prevalent, it is crucial to understand that throughout history, science denial at the state level has cost scores of millions of lives. In the Soviet Union under Stalin, Lysenko's denial of genetics led to disastrous agricultural policies, resulting in the persecution and execution of dissenting scientists and widespread famine. A similar tragedy unfolded in Mao's China, where the wholesale adoption of Lysenkoism contributed to a famine that claimed an estimated 45 million lives. In Germany starting in the 1930s, Adolf Hitler made state policy of Nazi eugenics, a twisted theory which held that some races are superior to others. This led first to the murder of disabled persons, including children, and then to the smoking chimneys of the Holocaust. President Mbeki of South Africa conducted his own internet research and rejected a virtually unanimous scientific consensus to conclude that HIV does not cause AIDS and that folk remedies are preferable to anti-retroviral drugs, costing an estimated 330,000 deaths. In this century, in Brazil and the United States, Presidents Jair Bolsonaro and Donald Trump rejected medical advice to downplay the danger of the COVID-19 virus and discourage protective measures, causing many unnecessary deaths. The two of them and today's Republican party reject the consensus among scientists that manmade global warming is true, thus choosing to deny and ignore the greatest threat that humanity has ever faced. Doomsday has not yet arrived, but we can see it from here and time is running out.

Since the launch of Sputnik in 1957, satellites have become the silent sentinels of our planet and the cosmos. Orbiting high above, they have changed the way we live, the way we think, and most profoundly, the way we see.In Sentinels in the Sky: How Satellites Have Revolutionized Our Understanding of Earth and Space, geologist and author James Lawrence Powell tells the remarkable story of how satellites have revolutionized science-transforming fields from geology to astronomy, meteorology to climate science, and agriculture to archaeology. What began as a Cold War contest to launch the first artificial satellite has evolved into a global enterprise in space-based observation, delivering a continuous stream of data about our planet and its place in the universe.Today's satellites measure Earth's temperature, vegetation, sea level, and ice cover with unmatched precision. They detect wildfires in remote forests, monitor hurricanes as they form, and track the movements of animals across continents. Without them, we would know far less about climate change, deforestation, drought, and the health of ecosystems on land and sea.But satellites do more than study Earth-they also extend our reach into space. They discover distant galaxies, observe black holes and supernovae, trace gravitational waves, and map the faint microwave afterglow of the Big Bang itself. Thanks to satellites, we have become explorers of both our own world and the wider universe.With clarity, authority, and a storyteller's touch, Powell brings to life the science, people, and technology behind one of the most transformative innovations of the modern age. Sentinels in the Sky is a compelling account of how humanity learned to observe the Earth from above-and why that view may be our best hope for understanding and preserving it.

Since the launch of Sputnik in 1957, satellites have become the silent sentinels of our planet and the cosmos. Orbiting high above, they have changed the way we live, the way we think, and most profoundly, the way we see. In Sentinels in the Sky: How Satellites Have Revolutionized Our Understanding of Earth and Space, geologist and author James Lawrence Powell tells the remarkable story of how satellites have revolutionized science-transforming fields from geology to astronomy, meteorology to climate science, and agriculture to archaeology. What began as a Cold War contest to launch the first artificial satellite has evolved into a global enterprise in space-based observation, delivering a continuous stream of data about our planet and its place in the universe. Today's satellites measure Earth's temperature, vegetation, sea level, and ice cover with unmatched precision. They detect wildfires in remote forests, monitor hurricanes as they form, and track the movements of animals across continents. Without them, we would know far less about climate change, deforestation, drought, and the health of ecosystems on land and sea. But satellites do more than study Earth-they also extend our reach into space. They discover distant galaxies, observe black holes and supernovae, trace gravitational waves, and map the faint microwave afterglow of the Big Bang itself. Thanks to satellites, we have become explorers of both our own world and the wider universe. With clarity, authority, and a storyteller's touch, Powell brings to life the science, people, and technology behind one of the most transformative innovations of the modern age. Sentinels in the Sky is a compelling account of how humanity learned to observe the Earth from above-and why that view may be our best hope for understanding and preserving it.

Since the launch of Sputnik in 1957, satellites have become the silent sentinels of our planet and the cosmos. Orbiting high above, they have changed the way we live, the way we think, and most profoundly, the way we see. In Sentinels in the Sky: How Satellites Have Revolutionized Our Understanding of Earth and Space, geologist and author James Lawrence Powell tells the remarkable story of how satellites have revolutionized science-transforming fields from geology to astronomy, meteorology to climate science, and agriculture to archaeology. What began as a Cold War contest to launch the first artificial satellite has evolved into a global enterprise in space-based observation, delivering a continuous stream of data about our planet and its place in the universe. Today's satellites measure Earth's temperature, vegetation, sea level, and ice cover with unmatched precision. They detect wildfires in remote forests, monitor hurricanes as they form, and track the movements of animals across continents. Without them, we would know far less about climate change, deforestation, drought, and the health of ecosystems on land and sea. But satellites do more than study Earth-they also extend our reach into space. They discover distant galaxies, observe black holes and supernovae, trace gravitational waves, and map the faint microwave afterglow of the Big Bang itself. Thanks to satellites, we have become explorers of both our own world and the wider universe. With clarity, authority, and a storyteller's touch, Powell brings to life the science, people, and technology behind one of the most transformative innovations of the modern age. Sentinels in the Sky is a compelling account of how humanity learned to observe the Earth from above-and why that view may be our best hope for understanding and preserving it.

Where will the water come from to sustain the great desert cities of Las Vegas, Los Angeles, and Phoenix? In a provocative exploration of the past, present, and future of water in the West, James Lawrence Powell begins at Lake Powell, the vast reservoir that has become an emblem of this story. At present, Lake Powell is less than half full. Bathtub rings ten stories tall encircle its blue water; boat ramps and marinas lie stranded and useless. To refill it would require surplus water - but there is no surplus: burgeoning populations and thirsty crops consume every drop of the Colorado River.Add to this picture the looming effects of global warming and drought, and the scenario becomes bleaker still. "Dead Pool", featuring rarely seen historical photographs, explains why America built the dam that made Lake Powell and others like it and then allowed its citizens to become dependent on their benefits, which were always temporary. Writing for a wide audience, Powell shows us exactly why an urgent threat during the first half of the twenty-first century will come not from the rising of the seas but from the falling of the reservoirs.

Where will the water come from to sustain the great desert cities of Las Vegas, Los Angeles, and Phoenix? In a provocative exploration of the past, present, and future of water in the West, James Lawrence Powell begins at Lake Powell, the vast reservoir that has become an emblem of this story. At present, Lake Powell is less than half full. Bathtub rings ten stories tall encircle its blue water; boat ramps and marinas lie stranded and useless. To refill it would require surplus water - but there is no surplus: burgeoning populations and thirsty crops consume every drop of the Colorado River. Add to this picture the looming effects of global warming and drought, and the scenario becomes bleaker still. "Dead Pool", featuring rarely seen historical photographs, explains why America built the dam that made Lake Powell and others like it and then allowed its citizens to become dependent on their benefits, which were always temporary. Writing for a wide audience, Powell shows us exactly why an urgent threat during the first half of the twenty-first century will come, not from the rising of the seas but from the falling of the reservoirs.

Where will the water come from to sustain the great desert cities of Las Vegas, Los Angeles, and Phoenix? In a provocative exploration of the past, present, and future of water in the West, James Lawrence Powell begins at Lake Powell, the vast reservoir that has become an emblem of this story. At present, Lake Powell is less than half full. Bathtub rings ten stories tall encircle its blue water; boat ramps and marinas lie stranded and useless. To refill it would require surplus water—but there is no surplus: burgeoning populations and thirsty crops consume every drop of the Colorado River. Add to this picture the looming effects of global warming and drought, and the scenario becomes bleaker still. Dead Pool, featuring rarely seen historical photographs, explains why America built the dam that made Lake Powell and others like it and then allowed its citizens to become dependent on their benefits, which were always temporary. Writing for a wide audience, Powell shows us exactly why an urgent threat during the first half of the twenty-first century will come not from the rising of the seas but from the falling of the reservoirs.Where will the water come from to sustain the great desert cities of Las Vegas, Los Angeles, and Phoenix? In a provocative exploration of the past, present, and future of water in the West, James Lawrence Powell begins at Lake Powell, the vast reservoir t

For fans of The Drowned World and World War Z, this “sobering and scary (and fascinating) novel—a look at where we’re going if we don’t quickly get our act together” (Bill McKibben, New York Times bestselling author) regarding climate change—unveils our potential terrifying future.2084: Global warming has proven worse than even the most dire predictions scientists had made at the turn of the century. No country—and no one—has remained unscathed. Through interviews with scientists, political leaders, and citizens around the globe, this riveting fictional oral history describes in graphic detail the irreversible effects the Great Warming has had on humankind and the planet. In short chapters about topics like sea level rise, drought, migration, war, and more, The 2084 Report brings global warming to life, revealing a new reality in which Rotterdam doesn’t exist, Phoenix has no electricity, and Canada is part of the United States. From wars over limited resources to the en masse migrations of entire countries and the rising suicide rate, the characters describe other issues they are confronting in the world they share with the next two generations. “If the existential threat of climate change keeps you up at night, James Lawrence Powell’s The 2084 Report will make you want to do everything in your power to elect leaders who will combat global warming and save our planet” (Marie Claire).

For fans of The Drowned World and World War Z, this “sobering and scary (and fascinating) novel—a look at where we’re going if we don’t quickly get our act together” (Bill McKibben, New York Times bestselling author) regarding climate change—unveils our potential terrifying future.2084: Global warming has proven worse than even the most dire predictions scientists had made at the turn of the century. No country—and no one—has remained unscathed. Through interviews with scientists, political leaders, and citizens around the globe, this riveting fictional oral history describes in graphic detail the irreversible effects the Great Warming has had on humankind and the planet. In short chapters about topics like sea level rise, drought, migration, war, and more, The 2084 Report brings global warming to life, revealing a new reality in which Rotterdam doesn’t exist, Phoenix has no electricity, and Canada is part of the United States. From wars over limited resources to the en masse migrations of entire countries and the rising suicide rate, the characters describe other issues they are confronting in the world they share with the next two generations. “If the existential threat of climate change keeps you up at night, James Lawrence Powell’s The 2084 Report will make you want to do everything in your power to elect leaders who will combat global warming and save our planet” (Marie Claire).