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There is real concern about geophysical risks, and one way to deal with that is to not bet everything on one planet. One concern is a solar minimum, which causes drops in the economy and agriculture, making it difficult to feed the population due to climate changes related to the Earth's distance from the sun. These individuals are worried about climate change, but they don't think it's coming from human behavior. Historically, every ten to twelve thousand years, there is some kind of huge disaster or near extinction event. A magnetic pole shift is one theory of what causes these events.

In May 2024, the sun is entering its solar maximum phase, with increased solar activity like flares and coronal mass ejections. The sun's magnetic poles are set to flip, leading to intense solar storms and auroras. NASA observed a unique event in 2023, hinting at the sun's evolution theory. This could potentially create a new planet like an infant Mercury. Venus represents Earth's past, while Mars symbolizes a future catastrophe. Our survival may lie in Venus as a sanctuary. The sun's upcoming spectacle will challenge our understanding of space, time, and our place in the universe. Keep looking up and questioning more.

Humans have a significant impact on climate through activities like driving and using energy. Solar physicist Piers Corbin pioneered a weather forecasting technique based on sunspots, which are intense magnetic fields on the sun. Astronomers used to count sunspots to predict weather, and it was observed that during the little ice age, there were very few sunspots. Sunspots were tested as an indicator of weather by gambling on predictions against the Met Office, and they proved to be accurate. Scientists found a close correlation between solar activity and temperature variation on Earth. The sun affects climate directly through heat and indirectly through cloud formation. Cosmic rays from exploding supernovae form clouds when they meet water vapor, and solar activity affects the number of cosmic rays reaching Earth. The sun's magnetic field intensity doubled in the 20th century. Harvard astrophysicists found that solar activity correlates with Arctic temperature change, while carbon dioxide does not. The theory of man-made global warming gained traction due to political and economic factors, with Margaret Thatcher promoting nuclear power and funding research on climate change.

- They mentioned 8.2 kilo year event, which occur roughly 8,000 years ago, and the Younger Dryas period, which occurred roughly 12,700 years ago. - Now, what does these two events have in common? During these two events, there was a geomagnetic excursion. - Here's the study for the event 8,200 ago. So they suggest based on evidence found in a volcano in China that roughly 8,000 ago, there there was an unrecognized younger Holocene geomagnetic excursion. - So this suggests that this climate change eight thousand years ago occurred because of geomagnetic excursion. - During the Younger Dryas, there was also a geomagnetic excursion called the Gothenburg magnetic excursion. - So you can see that it ranges from 30,000 years to 12,000 years ago before present, exactly aligns with the younger, driest, abrupt climate change. - And what's happening today? Of course, there is a geomagnetic excursion. - You can see the pole shift acceleration around 1994. Just watch this acceleration.

In the past million years, the Earth has faced ice ages regularly. Scientists warn that the next ice age could bring hunger and death on an unprecedented scale. The harsh winter of 1977 in the US is a glimpse of what might come. Climate experts predict Arctic cold and perpetual snow could turn much of the planet into a polar desert within our grandchildren's lifetime. Evidence shows temperatures dropping, suggesting the ice age could arrive sooner than expected. Earth is the only planet in our solar system suitable for human life.

The speaker discusses the impact of the sun on climate change, referring to historical periods of warmth and coldness. They explain that the sun's brightness and the Earth's orbit, influenced by other planets, are the main factors that explain climate variations. They criticize the focus on CO2 as the cause of climate change and emphasize the importance of considering seasonal variations and the sun's magnetic field. The speaker mentions their extensive research on the topic and concludes that predicting climate change is challenging due to the complexity of the sun's magnetic field.

Earth's climate has changed dramatically over the last 10,000 years, shifting between extreme heat and cold, including ice ages. Currently, we are in a sort of ice age, though definitions vary. The last significant ice age saw a lack of written records, with writing emerging after this period. There is speculation about the possibility of another dark age, especially if a third world war occurs. Establishing self-sustaining bases on Mars and the Moon could help preserve human civilization and aid in rebuilding after potential global conflicts. Given historical patterns, it seems likely that another world war could happen, and it may have catastrophic consequences.

Earth's climate changes radically over ten thousand years, shifting from extremely hot to extremely cold, as seen in ice ages. The magnetic poles have also shifted over time. While the exact cause of climate change is unknown, there's a strong suspicion, around 90% certainty, that it's the sun.

Speaker 0: We have been cooling down for the last four thousand years. If we look at the last thirty eight years, there has been no change in temperature. In the last hundred and fifty years, we've had three warming periods and three cooling periods with a total warmth of about point six degrees Celsius. 1850, what happened then? Oh, yes. That was the end of the Little Ice Age. Do you think it's gonna warm or cool after Little Ice Age? Of course, it's gonna warm. So if you start taking measurements from 1850 in the industrial revolution, we have been warming. If you take measurements from the medieval warming, we've been cool. We've cooled about five degrees since then. If you take measurements from the Roman warming, we've cooled about five degrees. So as soon as someone tells you, oh, it's warming, the reply you give is since when?

Earth's climate also changes pretty radically over the course of like say ten thousand years. You know, it can shift from being extremely hot to extremely cold. You can really go down a deep rabbit hole if you read about ice ages. That that that how much Earth's climate has changed and even where the where the magnetically where the poles are have has shifted over time. So on the climate change issue, I'm fully convinced. After all these years, even though we may not know exactly what is causing climate change, we suspect it's the sun. We have a lot of evidence to show that it's probably the sun. Very high percentage, you know, like, I would say, 90%, we're sure.

As we near the solar maximum expected in 2025, the risk of solar flares rises. The Carrington event of 1859 was the strongest geomagnetic storm recorded, causing spectacular auroras visible as far south as central Mexico. The storm disrupted telegraph systems, with operators experiencing sparks and fires from the equipment. Even after disconnecting batteries, some telegraphs continued to operate due to induced current from the solar activity. A similar event today would be catastrophic, potentially crippling power and communication systems globally.

Earth's climate has drastically changed over the past 10,000 years, shifting between extreme temperatures and ice ages. Currently, we are in a period often referred to as an ice age, although definitions vary. The last significant ice age saw a lack of written records, with writing emerging afterward. There is speculation about the possibility of another dark age, especially if a major conflict like World War III occurs. Establishing self-sustaining bases on Mars and the Moon could help preserve human civilization and facilitate recovery after such a catastrophe. Given historical patterns, the likelihood of future global conflicts remains high, and the consequences could be severe.

Over the past million years, there have been at least eight cycles of glaciation, and scientists now warn that the threat of another ice age is closer than previously thought. If we are not prepared, it could result in widespread death and destruction. In 1977, the coldest winter of the century hit the United States, with Arctic temperatures paralyzing cities and causing fatalities. This experience made people question where they would go if such extreme winters became the norm. Climatologists believe the next ice age is approaching, with temperatures dropping in the northern regions for the past thirty years. Within a generation, we could be living in the next ice age.

Climate also changes pretty radically over the course of like say ten thousand years. You know, it can shift from being extremely hot to extremely cold. You can really go down a deep rabbit hole if you read about ice ages. So interesting. That's That that that how much Earth's climate has changed and even where the where the magnetically where the poles are have has shifted over time.

In the past million years, the Earth has experienced regular cycles of advancing and retreating ice ages. Scientists now warn that the threat of another ice age is closer than previously believed. If unprepared, this could lead to widespread hunger and death. The severe winter of 1977 in the United States, with Arctic cold and blizzards, serves as a reminder of what could become more common. Climate experts have observed dropping temperatures in the far north for the past three decades, and summer ice is now present year-round in some coastal areas. This evidence suggests that we might be living in the next ice age within our lifetime. Earth is the only planet in our solar system with conditions suitable for human life.

In 1977, the United States experienced a harsh winter, leading to concerns about the next ice age. Climate experts believe that the next ice age may come sooner than expected, as temperatures in the Arctic have been dropping for the past 30 years. The average temperature in the Arctic has fallen by about 2 degrees centigrade, and if this trend continues, ice age temperatures could be reached in less than 200 years. Evidence from ice core studies suggests that a volcanic event 89,000 years ago caused a rapid shift to glacial conditions. The threat of an ice age is not as remote as once thought, and preparations need to be made to survive the change.

There is real concern about geophysical risks, and one way to deal with that is to not bet everything on one planet. One concern is a solar minimum, which can cause big drops in the economy and agriculture, making it difficult to feed the population due to climate changes related to the Earth's distance from the sun. Some people are worried about climate change, but they don't think it's coming from human behavior. However, there are environmental problems coming from human behavior. Historically, every ten to twelve thousand years, there has been some kind of huge disaster or near extinction event. A magnetic pole shift is one theory of what causes these events.

Earth's climate changes radically over ten thousand years, shifting from extremely hot to extremely cold. The Earth's magnetic poles have also shifted over time. While the exact cause of climate change is unknown, there is suspicion and evidence suggesting the sun is the primary factor. There is a high degree of certainty, around 90%, that the sun is the cause.

Alec asked whether the Earth’s magnetic field has weakened by about 10% in the last 150 years and how that relates to the claim that the field has remained roughly constant over the last billion years. Professor Nun Lora explained that when we say the field has remained roughly constant, we mean its magnitude is roughly constant on long time scales, though it varies and undergoes reversals (the North Pole becoming the South Pole and vice versa). These reversals correlate with various ice ages, but averaged over fluctuations, the amplitude of the field has remained roughly constant. If there were no dynamo, the magnetic field would have diffused quickly (within about 10^5 years), and Earth would lack a protective field against cosmic radiation. Alec thanked the speaker. A last question from another participant (Speaker 3) asked how quantum computing is being used in plasma physics, given its novelty. Professor Nun Lora responded that we cannot currently use quantum computing for these problems. The longer view is that it may take about twenty years for a quantum computer to be useful for solving real problems, but it would be a mistake to wait to start thinking about how to use it. It won’t be as simple as porting existing codes to a quantum computer because the architecture is fundamentally different. Two parallel lines of development are needed: (1) preparing for a future quantum computer and (2) understanding how to map problems into quantum-friendly formulations. The challenge is that many problems are nonlinear, making it unclear how to devise quantum algorithms for them. She gave an example of the Madelung transformation, which maps the Schrödinger equation to fluid-like equations and potentially relates to magnetohydrodynamics (MHD). This approach shows a possible direction for problem mapping, but it represents a completely different way of thinking compared to conventional computing. The session concluded with the moderator noting the competition starts in about three and a half hours, and in about six hours the next talk will be on quantum computing with Tim from NYU Shanghai. The moderator thanked Professor Nun Lora again, and the session ended.

Earth's climate undergoes significant changes over thousands of years, shifting from extreme heat to extreme cold, as seen in ice ages. Additionally, the magnetic poles have also shifted over time. Regarding climate change, there is a strong belief that the sun plays a major role in these changes. While the exact causes of climate change are still being studied, there is substantial evidence suggesting that solar activity is responsible for a large percentage of it, with a high level of confidence in this conclusion.

The sun's magnetic field flips roughly every eleven years, with its north and south magnetic poles switching places. This flip is accompanied by a gradual increase in solar activity, including more sunspots, solar flares, and coronal mass ejections. The peak of this activity is called solar maximum, marking the solar cycle's halfway point and typically involving a year or two of heightened solar activity. During solar maximum, there's a potential increase in severe geomagnetic storms on Earth, which can cause aurora and pose risks to communications, satellites, and power grids. NASA scientists study the solar cycle to better understand and protect against solar activity's effects on technology both in space and on Earth.

The speaker discusses the complexity of the sun's magnetic field and the challenges in studying it compared to the Earth. They mention Galileo Galilei's observations of Jupiter's moons and how he changed the language of his notes to Latin. The speaker also mentions studying the sun for a long time and writing a book about the Maunder Minimum, a period of low sunspot activity during the Little Ice Age. They express puzzlement over attempts to change the understanding of the Little Ice Age and suggest it may be driven by a desire to prioritize CO2 as the main factor in climate change. The speaker concludes by stating that this is not scientific and is akin to lying.

For the past 4000 years, the planet has been cooling. In the last 38 years, there has been no temperature change. Over the last 150 years, there have been 3 warming periods and 3 cooling periods, with a total warmth increase of 0.6 degrees Celsius. The end of the Little Ice Age in 1850 marked the start of warming. Since then, we have warmed due to the Industrial Revolution. If we measure from the medieval and Roman warmings, we have actually cooled by about 5 degrees each. So, when someone says it's warming, ask them since when?