Tuesday, July 27

cambio climatico

cambio climatico, cientificos, clima, Espacio, Jeff Bezos, Noticias, Richard Branson, turismo espacial, Virgin Galactic

Climate Scientists Concerned About Space Tourism | Digital Trends Spanish

While the recent space trips of millionaires Richard Branson and Jeff Bezos have been highlighted, climate scientists are concerned about this situation. They are concerned about the growing increase in space tourism and about the stage that both entrepreneurs have just inaugurated, particularly about the effects that this trend could have on the health of the planet. Professionals fear that the increasing number of rocket flights and the increase in space tourism could damage Earth's atmosphere and contribute to climate change. According to Dallas Kasaboski, an analyst at space consultancy Northern Sky Research, a single Virgin Galactic suborbital flight lasting an hour and a half can generate as much pollution as a 10-hour transatlantic flight. This is concerning to researchers, espec...
calentamiento global, cambio climatico, cerdos salvajes, dióxido de carbono, jabalíes, Noticias, planeta, Tendencias

Wild boars and their unexpected role in global warming | Digital Trends Spanish

Wild boars could be contributing significantly to global warming. At least that is what a study conducted by researchers at the University of Queensland in Australia and the University of Canterbury in New Zealand determined. According to the research, by uprooting the carbon trapped in the soil, these mammals release about 4.9 million metric tons of carbon dioxide per year worldwide, which is equivalent to 1.1 million vehicles. The team in charge used population prediction models in conjunction with advanced mapping techniques to determine the climate damage caused by these animals across the planet. Getty Images.In fact, the researchers warn that the growing number of these animals in the world could become a major threat to the climate. “Wild boars are like tractors that plow throug...
cambio climatico, Espacio, luna

Orbit of the Moon could cause major floods in 2030 | Digital Trends Spanish

A future rise in sea level off the coast of the United States could not only be due to climate change, but also to certain swings in the orbit of the Moon, according to a new study published in Live Science. Rises in sea levels result in flooding that, in certain parts of the United States, occurs frequently two to three times a month. However, this could increase to more than a dozen for the next decade, due to the action exerted by the orbit of the Moon; According to the study, the next cycle in which the satellite will generate tidal increases begins in 2030. And if the sea level continues to rise due to climate change, along with the action of the lunar orbit, the tides could become a problem more than just annoying. UnsplashThe study authors believe that, if no action is taken, t...
Amazonas, arboles, Biodiversidad, bosque, cambio climatico, crecimiento rapido, ecología, especies, extinción, flora, Noticias, perdida, selva, Tendencias

Why do trees die in the Amazon? | Digital Trends Spanish

A study carried out by the universities of Leeds and Birmingham tried to determine the causes of death of trees in the Amazon. The results were published in Nature Communications and show that species-level growth rates are a key risk factor for tree mortality. In this regard, they realized that the fastest growing trees die at a younger age. This discovery is of great importance for understanding the future of forests, as climate change tends to "select" those species with the fastest growth. If these forests selected for climate change are more likely to die younger, they will also store less carbon. This study consists of the first large-scale analysis of the causes of death of trees in the Amazon and uses long-term records collected by the international network RAINFOR. "Under...
aire acondicionado, calor, cambio climatico, colorante, Edificios, enfriar, frío, Noticias, pintura, refrescar, super blanca, temperatura, Tendencias, Universidad

This super white paint is able to cool everything down | Digital Trends Spanish

One of the most common ways to cool rooms and entire buildings is through air conditioning. It is the most comfortable and practical way, although not the healthiest for our planet. For this reason, a group of engineers from Purdue University in the United States has created a method of keeping different structures fresh in an easier and more sustainable way. It is a "super white" paint that can keep all surfaces cool, specifically down to -7.8 degrees Celsius, regardless of the high temperatures that may be outside. According to the authors, this type of dye can also reflect 95.5% of sunlight and efficiently radiates infrared heat. The good news is that this insulating effect would be done without consuming energy, which constitutes a real relief for the planet, even helping to sl...
Ácaro, cambio climatico, Ecosistema natural, naturaleza, Noticias, Tendencias

Mites are dying out and that’s a serious problem | Digital Trends Spanish

Carpets, fabrics, bedding, mattresses and pillows are some of the favorite places of the mites, this subspecies of arachnid that feed on organic matter or dead cells of the body. Their presence is important, as they help improve the ecosystem and maintain a proper balance in nature. The first world study on the biodiversity of mites was carried out by the Dr. Greg Sullivan of the University of Queensland in Australia and his colleague Dr Sebahat K. Ozman-Sullivan, who collected data showing the ongoing extinction of an alarming number of them, at a rate of a thousand times their usual death. “Mites are fundamental to the ecosystems of the entire planet; some provide essential ecosystem services, such as incorporation of organic matter into the soil, ”said Dr. Sulliva...
cambio climatico, mastodontes, Noticias, Pleistoceno, Tendencias

Climate change forced mastodons to be migrants | Digital Trends Spanish

The drastic climatic changes recorded during the Pleistocene era transformed mastodons into migrant animals, forced to move great distances across North America. This was revealed by the first large-scale genetic study of American mastodons, published in the journal Nature Communications, where researchers reconstructed entire mitochondrial genomes from the fossilized remains of 33 individual animals. The species disappeared about 11,000 years ago during megafauna extinctions that wiped out 44 large Pleistocene mammals, including mammoths, saber-toothed tigers, and ground sloths. Mastodons were among the largest land animals on Earth. They roamed from Beringia (present-day Alaska and Yukon) to Nova Scotia in the east and to central Mexico in the south. They were explo...
calentamiento global, cambio climatico, ecología, Espacio, medio ambiente, Noticias

Climate study confirms worst-case scenario | Digital Trends Spanish

Global warming has caused the worst-case scenario predicted by the Intergovernmental Panel on Climate Change (IPCC), according to a study published in the journal Nature Climate Change. Led by Tom Slater of the Center for Polar Observation and Modeling at the University of Leeds, the work determined that the sea has risen 1.8 centimeters since the 90's as a result of the melting of Antarctica and Greenland. "If these rates continue, the ice sheets are expected to raise sea levels by an additional 17 cm and expose 16 million people to annual coastal flooding by the end of the century," the study house said in a press release. Supported by satellite images, the investigations revealed that the thawing of Antarctica has raised the global sea level by 7.2 millimeters, while Greenland h...
Apocalipsis, cambio climatico, Fin de la humanidad, mit, Noticias, Tendencias, tierra

MIT professor: time is running out for the human race | Digital Trends Spanish

The coronavirus pandemic is just one of the concerns that humanity should have to survive on planet Earth, since the acceleration of climate change is perhaps the biggest problem ignored by the political authorities. So a MIT professor made an urgent call to try to save in part this outcome that is leading the inhabitants of the globe to extinction. According to Henry, Robert N. Noyce Associate Professor of Professional Development in the Department of Mechanical Engineering at MIT, he commented that there are five fundamental challenges in trying to stop the end of humanity. “Our mission here is to save humanity from extinction due to climate change. The mission is clear. And this is a subset of five problems that will get us most of the way there, if we can solve them...
Antártica, calentamiento global, cambio climatico, Noticias, Tendencias

Satellite images show the melting of Antarctica | Digital Trends Spanish

A loss of nearly 4,000 gigatons of ice has experienced Antarctica since 1994, according to experts at the University of California, San Diego. In the last 25 years, thaw has produced enough water to fill the Grand Canyon of the Colorado. Scientists at the Scripps Institution of Oceanography re-created the process in detail based on records from four European Space Agency (ESA) satellite missions, ice speed data from NASA and computer models from the US agency. "This is the most compelling evidence yet that long-term changes in the Southern Ocean are the reason for the ongoing Antarctic ice loss," said lead study author Susheel Adusumilli. The Scripps graduate student also commented that "it is incredible that we can use satellites that orbit about 805 kilometers (500 mi...