Summary of Cambio Climático - National Geographic - Seis grados que podri­an cambiar el mundo

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The video discusses the potential effects of climate change on various parts of the world. It explains how a small change in the Earth's temperature could have drastic consequences, and how we need to be prepared for the many possible scenarios.

  • 00:00:00 In the video, National Geographic discusses the drastic changes happening on Earth and how quickly they've occurred. There are rivers that have never been explored before, there's a forest that is near the limits, and we are walking on territory that we've never seen before. The planet is in a crossroad and the global warming issue is not out of control, but it may soon be. The signs of alarm are around us, and what we can do to address the global warming issue. If we don't do something, the Earth could become much hotter than we've experienced in the past. The temperature is rising each degree, and we're getting closer to reaching 4-5 degrees of global warming. That would be something unimaginable. If the global warming trend continues, we could reach 6 degrees of global warming by the end of the century. This would be a completely different world. In some parts of the world, the first signs of global warming are already here. Glaciers in the Himalayas are a source of water for millions of people. They could potentially disappear within 50-100 years if the global warming trend continues. Greenland's ice sheet could melt irreversibly. The Amazon rainforest is home to half of the world's biodiversity. It could be reduced
  • 00:05:00 The video discusses the effects of climate change on the world, and how a small change in the Earth's temperature could have drastic consequences. For example, if the Earth's temperature increased by 6 degrees over the course of a single day, it would be like wearing shorts in the middle of winter. The presenter explains that the Earth's atmosphere acts as a shield between the planet and outer space, and that over the past 250 years, human emissions of greenhouse gases have increased as we've become more accustomed to modern conveniences. The presenter also mentions that the amount of carbon in the atmosphere is increasing, and that this will lead to further increases in the Earth's temperature.
  • 00:10:00 The video discusses the possible consequences of climate change, focusing on the potential for widespread ecological disaster. If the Earth's temperature rises by six degrees Celsius (nine degrees Fahrenheit), it could become a much more dangerous place, with parts of the world at risk of floods, hurricanes, and droughts. The risks of climate change are very real, and we need to be prepared for the many possible scenarios. By writing down possible scenarios and having hope, we can choose the right response to climate change. If the Earth warms by another two degrees Celsius, parts of the Midwest could become desert. Over the course of six or seven generations, this would devastate an area the size of Texas. The experience of previous generations can help us survive in a changing world, but it may not be enough in a world that's warming rapidly. It would be very difficult to continue ranching in a desert environment if we lost water supplies. A single degree Celsius of warming could devastate a large swath of the Midwest, displacing ranchers and turning their land into a desert. Six thousand years ago, most of the West was part of a vast desert that spanned the continent. A small change in Earth's orbit caused the sun to
  • 00:15:00 This video discusses the impacts of climate change on various parts of the world, and how England is currently situated to benefit from these changes. Although the climate is changing at a faster rate than in the past, this is actually a good thing, as it means that other parts of the world are being affected less. The temperatures in some parts of the world are gradually becoming more comfortable, and this is good news, even though it comes at the expense of other areas of the world. Climate change is happening now, and we are already closer to critical points than we have ever been before. If we do not take action to stabilize the levels of carbon dioxide in the atmosphere, many species will become extinct. This video provides an overview of the dangers of climate change over the past few million years, and how human activity is leading us rapidly towards a scenario that has never been seen before.
  • 00:20:00 The video discusses the impact of carbon on the environment, focusing on the production and consumption of food. It states that, according to calculations, every year in North America, there are more emissions from Hamburgers than all of the vehicles in the United States. It also mentions that, as the Earth's climate gets warmer, certain changes in the biosphere will no longer be gradual, and we may lose many of the coral reefs in tropical oceans. In addition, insects may migrate in new and unusual directions, and tree species that rely on white-colored bark to survive may become extinct as the climate gets warmer. The video ends by saying that while it may seem impossible to change something as large as the ocean, it is possible - and necessary - to do so in order to address the climate crisis.
  • 00:25:00 The video, "Cambio Climático - National Geographic - Seis grados que podri­an cambiar el mundo" explains how global warming is affecting the world's coral reefs, and how these ecosystems are vital to controlling the climate. The researchers are concerned about the potential for the planet to warm even more, and the effects that this could have on everything from the stability of the ice sheet to the endangerment of small creatures that rely on coral reefs.
  • 00:30:00 As the Earth warms, one of its climates, which is harsh and has affected Greenland for hundreds of years, is changing. Dogs that used to be symbols of wealth and a necessity to survive in this cold place are now dying of hunger. Some are being eliminated, and Marit Holmes, a veterinarian in Greenland, is one of the few left. While patrolling the city of Ilulissat, she observes the impact of climate change on each of the dogs without dog sleds that used to be a common sight in the area. She has to be careful not to bite them when they're hungry because they can be scary when that way. Zinc, a younger man at the time, used to hunt in this same area with solid ice cover during half the year. Everything changed very quickly: you don't need a scientist to see what's happening. During the following 50 years, the ice will melt so quickly that it will be impossible to stop the glacier from melting entirely. Stephens needs to venture ever deeper into the ice to learn more. Stephens has installed 23 stations to monitor meteorological conditions. You can hear the ice cracking and popping because it's compressed, just like when you blow a small
  • 00:35:00 This video presents climatology measurements taken every 15 seconds, which are used to update models of global warming. The ice sheet is very old, with over 150,000 years of history. If we started to remove it, we would be starting an unknown process that has never been seen by humanity. Greenland disappeared in 1992, when 56 km of glaciers slid into the ocean. Ten years later, that number had surpassed the double, and is now climbing at a rate of fifteen 5-kilometer annual increments. Stephens, who is not well-versed in the effects of higher temperatures on glaciers, would not understand until he learned of one of the most dangerous features of this remote landscape. Ridges of melted ice slide down into the interior of the glacier, creating tunnels called mou lans. The team made a descent with a fiber optic camera to study their hypothesis. They found that water containing frozen ice is moving through the bedrock at an accelerated rate, and is lubricated by melted ice at the lowest part of the glacier. This mechanism is accelerating the loss of ice in the Greenland ice sheet, and could lead to global warming reaching two degrees Celsius within the next ten years. If the world warms by three degrees, most of the
  • 00:40:00 During the 2003 European heat wave, which was likely the first global climate change-related disaster, thousands of people died in Paris from heat exposure. This video discusses how the 2003 heat wave affected plants and the Paris population in general. The heat wave caused plants to release more carbon dioxide into the atmosphere, and the trees in Paris weren't able to absorb it like they would during normal weather. This resulted in a lot of carbon dioxide being released into the atmosphere, which is a threat to the environment.
  • 00:45:00 Six degrees Celsius could change the world, and scientists are working to understand the consequences of this global warming. In one of its laboratories, Harley in England, one of the world's pioneer meteorological stations for predicting climate change, scientists are trying to predict the effect of a three-degree Celsius warming on the Amazon rainforest. The model shows that, in the future, this area could undergo a catastrophic cycle of warming and drought. This would reduce the area of the Amazon rainforest that is still wet to a piece of dry savanna. The disappearance of trees and the increase in wildfires are both consequences of climate change. Daniel Next Salt has studied the Amazon for 25 years and believes that, within 20 years, we will witness the attack of what is called a "mega-fire." This fire, which is caused by the combination of global warming and deforestation, could devastate an area equivalent to the size of France.
  • 00:50:00 This video discusses the potential effects of climate change on hurricanes, with particular focus on Hurricane Katrina. It points out that, as the Earth becomes warmer, storms will become more powerful, and predicts that by the end of the century, storms of a level similar to Hurricane Katrina (a 5 on the Saffir-Simpson Scale) could be the norm.
  • 00:55:00 A video about the effects of climate change on hurricanes and other weather events, including Hurricane Katrina, discusses how the storm may have been made worse by climate change. The presenter points out that, although it is impossible to directly link Hurricane Katrina with climate change, the storm and its aftermath are a warning of what may be in store for the world as the Earth warms by three more degrees.

01:00:00 - 01:30:00

The video, "Cambio Climático - National Geographic - Seis grados que podri­an cambiar el mundo", discusses the potential effects of climate change on the world. It presents the story of Swami, a Hindu saint who has been documenting the gradual loss of glaciers in the Laganés peak for 50 years. If the global temperature increases by four degrees more, the Ganges River will be destroyed, resulting in the loss of millions of people's livelihoods. The video also discusses the possible effects of a 5-degree increase in global temperatures on New York City, which would be submerged underwater. Edwards also discusses the importance of mobility in a changing world, and how storing enough food and water on-the-go can help make such a transition easier.

  • 01:00:00 Swami is a Hindu saint who has photographed the glaciers of the Laganés peak for 50 years. His photos document the gradual loss of the glaciers. If the global temperature increases by four degrees more, the Ganges River will be destroyed due to its two extremes - from a high mountain glacier to the Indian Ocean. This would result in the loss of millions of people's livelihoods. If we do not slow down the global warming, the cangués glacier could be the next river in battle, losing its ice in the Himalayas at a rate faster than any other place on Earth.
  • 01:05:00 The video focuses on the potential effects of climate change on New York City, specifically mentioning potential floods and hurricanes. It presents the story of Alex, a student who projected the effects of climate change on his city using maps, elevation data, and scientific reports. His work showed that the city would be increasingly vulnerable to both floods and hurricanes, and would lose some of its most important infrastructure if the climate continues to warm.
  • 01:10:00 The video discusses the possible effects of global warming on urban areas, focusing on New York City. The National Geographic team is working on a computer simulation to see what would happen if the Earth's temperature rose by 5 degrees Celsius (9 degrees Fahrenheit). If this were to happen, huge areas of the city would be submerged underwater. Cities that are already struggling due to climate change would be hit even harder, and poorer countries would not be able to afford to build the necessary barriers. The risks of a 5-degree Celsius increase in global temperatures are difficult to predict, and could lead to real world disasters if the world warms up by that much.
  • 01:15:00 In this National Geographic video, scientist and author Edward Edwards discusses the potential consequences of a 5-degree increase in global temperatures, which he believes may be inevitable due to climate change. He talks about the ways in which people can prepare for such a scenario, and how a 6-degree increase could lead to the extinction of many species. Edwards also discusses the importance of mobility in a changing world, and how storing enough food and water on-the-go can help make such a transition easier.
  • 01:20:00 The video, "Cambio Climático - National Geographic - Seis grados que podrían cambiar el mundo", discusses the effects of climate change on the world and how we can prevent it. It discusses how we can reduce our emissions by using energy more efficiently and discusses the role of solar energy in this. The video also discusses how cars are a major contributor to climate change and how we can reduce our emissions by using public transportation more.
  • 01:25:00 The video, "Cambio Climático - National Geographic - Seis grados que podri­an cambiar el mundo" by National Geographic, discusses the potential of six degrees Celsius of global warming happening, which could have major consequences for the world. Some of the solutions discussed include reducing greenhouse gas emissions by 7000 million tons annually, doubling the efficiency of fuel combustion for vehicles from 2 kilometers per liter to 4, and saving hundreds of millions of tons of carbon by eliminating more of our footprint. However, to keep temperatures from reaching two degrees Celsius, we still need to reduce emissions by millions of tons annually, and renewable energy sources such as solar, wind, and hydro aren't the only options - nuclear fusion may be the answer. While the project is still in its early stages, if it proves successful it could lead to an unlimited source of clean, renewable energy. Waiting for someone to come up with a new, fantastical energy source isn't an option; we need to get started on this problem ourselves.
  • 01:30:00 National Geographic explains the consequences of six degrees of global warming, which could radically change the world. The video also discusses the threat of climate change during the Cretaceous period, when the Earth's temperature increased by six degrees. The fossilized remains of plants and animals buried in the earth over millions of years provide a glimpse of what the planet might look like if we continue to increase the temperature. Humanity is currently re-releasing the same amount of carbon that was trapped in the atmosphere over millions of years. If the temperature continues to increase, the climate may become self-sustaining and global warming may become irreversible. The only question is what we are going to do about it.

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