Global ice ages in Earth's history occurred when the level of solar radiation is sharply changed in a short period by geological standards the period of time, American scientists have found. Their work was published in the journal Proceedings of the Royal Society A.
In Earth's history was at least two periods of the Paleoproterozoic 2.4 to 2.1 billion years ago during the Neoproterozoic 850-630 million years ago, when the whole surface of the planet was covered with ice. With the end of the second period of time is associated sudden flowering of complex multicellular life on Earth. Therefore, not only geologists and planetary scientists studying exoplanets lying within the habitable zones, looking for the causes that can trigger a global glaciation.
The reasons for the sensational invasion eared jellyfish, also known as eared Aurelia, in the Western part of the Baltic sea this year are connected with the sea currents and weather, said to RIA Novosti, the German biologist, specialist of the research center for ocean Helmholtz "GEOMAR" in Kiel and the technical University in Copenhagen Cornelia Jaspers.
"It varies from year to year. Last year Aurelius, for example, was not enough, this year a lot of them. It depends primarily on ocean currents, weather conditions and wind, as jellyfish can't swim against the current. But we have seen that in some years the number of jellyfish is very high. For example, in the Western part of the Baltic sea, from Flensburg to Kiel and lübeck it was recorded in 1982, 2002 and now," - said the expert.
The Japanese company Mitsubishi Chemical announced the development of plastic packages that degrade in seawater, transmits television channel NHK.
The bags are made from a material which includes, in particular, sugar cane. To the touch this package will not differ from the usual plastic.
Russian scientists from the Siberian Federal University have developed a new type of sorbent for collecting rare metals from ash and volcanic deposits. It is made on the basis of vikramasila from rice husks. The study is published in the journals Analytical Methods and Separation Science and Technology.
Rare earth elements (REE) or rare earth widely used in the manufacture of modern electronics, lasers, SuperMagnets, electric vehicles, superconductors, metallurgy and medicine. In nature the rare earths are found in scattered form in the form of oxides, and this severely complicates their extraction on an industrial scale.
Scientists have identified nine periods of the greatest intensity of river floods in Europe over the past 500 years. One of them includes the last three decades, which is different from all previous periods of flooding. The study is published in the journal Nature.
Over the past decade, floods in Europe brought large economic losses. They are becoming more frequent and widespread. Scientists geographers from different countries joined forces to find out what distinguishes the current situation from other periods, rich in floods in the past.
Scientists reported the discovery of the first active methane leaks from the seabed of the Antarctic, reports the Guardian newspaper.
According to her, scientists also found that the microbes that eat methane before it goes into the atmosphere, appeared on the location of the release of gas only five years after its discovery.
The first tests of the experimental setup, heating the clouds to drop rain, have passed in the Stavropol region, reports the North-Caucasian Federal University.
"The use of special reagents for invoking artificial rain is expensive, so in the Stavropol region and in other regions at present, this method is not applicable on an ongoing basis. Alternatively the possibility of promoting the growth of clouds by ground-based powerful heat sources. The latter creates a thermal jet, which acts directly on existing clouds," reports the University.
Scientists found out that by 2100 most subpopulations of polar bears in the Arctic are under threat of extinction due to reduction of sea ice caused by global warming. The study is published in the journal Nature Climate Change.
Polar bears Ursus maritimus species use sea ice to hunt with him on seals. In the summer, during the melting of coastal ice animals move on land where they have virtually no food and are funded by accumulated fat. Since the warm season in the Arctic lengthened, and the area of sea ice decreases in response to warming, polar bears each year have to be on the mainland more and more time
American and Swiss scientists have proved that in the depths of Venus is still active internal processes associated with mixing substances. The study is published in the journal Nature Geoscience.
It is known that the surface of Venus was formed later than Mars or mercury, the inner part of which has long been cold. At a recent internal activity of the planet indicate a ring-shaped structure known as the crown.
Russian schoolchildren have discovered a new island in the Arctic, said Russian geographical society on its website.
Eight members of the project group "Risksat" from Troitsk, Tula, Venev, Dedovsk, Gatchina, St.-Petersburg and Yakutsk made the discovery while processing satellite imagery.
The Stromboli volcano on the Italian island of the same name, located in the Tyrrhenian sea near Sicily on Sunday morning resumed its activity, reported by the national Institute of Geophysics and Volcanology, Italy (Ingv).
According to volcanologists, a new eruption occurred at dawn. In 6.23 (7.23 MSK) was recorded a powerful explosion, after which above the crater of the volcano rose a column of black smoke. The eruption was accompanied by strong emission of ash, sand and other volcanic material. Scientists have registered two "high intensity blast", which caused fluctuations of the earth's surface.
Scientists have warned about the possible appearance in the future a new ocean, according to NBC News.
According to the calculations of researchers that approximately five to ten million years in Eastern Africa, formed by tectonic fault, resulting in a continent "split" into two parts.
The Earth's climate could "go back" for a few million years, say scientists from the University of Southampton. Their findings are published in the journal Scientific Reports.
As noted by the authors, by 2025, the level of carbon dioxide in the atmosphere may be a record for the past 3.3 million years. Scientists managed to establish this by analysing the chemical composition of fossils from the bottom of the Caribbean sea.
To ensure the operation of vessels on the Northern sea route it is necessary to resume the work of ten polar stations in the Arctic seas, and to restore the monitoring stations at the mouths of large Northern rivers, told RIA Novosti the head of Hydromet Igor Shumakov.
In connection with plans to increase volume of cargo transportation via the Northern sea route (NSR), you must provide the court with timely information about the state of the ice. Currently, the Arctic region has only 41 ice station. The overall density of the observation network is insufficient.
Threats to the buildings of the Russian scientific center on Svalbard due to the melting permafrost no, told RIA Novosti the head of Hydromet Igor Shumakov.
The destruction of permafrost is considered to be one of the major threats to the economy of Northern regions. Change the properties of the permafrost in connection with climate change leads to a decrease in the bearing capacity of foundations of buildings and infrastructure.
The minimum value of ice with 80 years decreased by about half, and perennial ice and did almost disappeared, told RIA Novosti the head of Hydromet Igor Shumakov.
The interlocutor of the Agency noted that experts believe the reduction of ice, the main manifestation of the changes in ice conditions in the Arctic. This happens all year round.
An earthquake of magnitude 5.1 occurred on Sunday in the Chinese northeastern province of Hebei, according to the seismological center of the country.
The quake was registered Sunday in 06.38 local time (01.38 GMT) in the area of Hue city Tangshan. After some time, there were recorded two aftershocks of magnitude 2.2 in 07.02 local time and 2.0 V 07.26.
South African scientists have discovered that aardvarks are usually active only at night, began to leave in search of food during the day. The researchers suggest that this is due to climate change and lack of food. Violation of circadian rhythm, according to biologists, may have a negative impact on the survival of these rare mammals and lead to the disruption of the ecosystem as a whole. The study is published in the journal Frontiers in Physiology.
The African aardvark is the only modern representative of the relic squad trubkozuby. Animals remained only in Africa South of the Sahara. They lead a solitary lifestyle, living in burrows, feed on ants and termites.
The study of annual rings in tree cross-section for the last 600 years showed that extreme climate change began in the middle of the last century. The results were published in the journal Proceedings of the National Academy of Sciences.
Annual rings of trees is a natural document that tells about the climate in a particular period. Working on the creation of the South American drought Atlas (SADA), the scientists analyzed how over the past six centuries, changed the moisture content of the soil in which the trees grow.
Scientists discovered in the Crimea two large underground magma chamber, next to which prisnyatsya sea water. About if it will help the Peninsula to solve the problem of supply — in the material RIA Novosti.
Saudi Arabia, United Arab Emirates, Kuwait, Qatar, Oman, Bahrain, Israel provide water by desalination. What prevents to follow their example in the Crimea?
In the next few years forty degrees of heat will cease to be anomalous for the Russian regions. About this portal "Ura.ru" said the head of the laboratory of climatology Institute of geography RAS Vladimir Semenov.
As the scientist explained, this is due to climate change. Over the last forty years, Russia has on average warmed by 2-2.5 degrees.
Wild boar spotted on the territories of city parks, according to the website of the Moscow mayor, which also provides guidelines about how to behave when meeting these animals.
Experts Mospeada reminded that these animals are sometimes found in natural areas of the capital.
An earthquake of magnitude 5 occurred on the territory of Tajikistan, told RIA Novosti the Geophysical service of the Academy of Sciences of Tajikistan.
According to them, the earthquake occurred on Saturday at 14:34 (12.34 GMT).
Canadian astronaut Christopher Hadfield said that in honor of him called a new species a mining bee - Andrena hadfieldi.
"My mother always hoped that I would be someone. Allow me to introduce the beginner Andrena hadfieldi" he said on his Twitter page.
The temperature at the South pole over the last three decades have increased three times faster than the average for the planet, according to a new study published in the scientific journal Nature Climate Change.
It is noted that the temperature increased by approximately 0.6 degrees Celsius each decade, which is three times higher than the average increase across the planet.
Korcuska station radiation control Department of environment of Estonia found in air isotopes of cesium, cobalt and ruthenium in very small quantities that do not threaten human health, said on Monday the adviser of the radiation Department of teeth Koitjarve.
Earlier, the Minister of foreign Affairs Urmas Reinsalu exchanged with their colleagues from Finland, Latvia and Lithuania information about the growth of the concentration of radioactive particles.
Climate warming in Siberia will cause the melting of permafrost, which can cause the destruction of towns and villages in the region, said a Swedish climate scientist Johan Kilahama. His thoughts he shared with the newspaper Svenska Dagbladet.
Climatologists have reported a noticeable warming in Russia, especially in Siberia. According to the Service to control climate change program "Copernicus", in some regions the temperature in may exceeded the norm by ten degrees. Winter throughout the country, too, was abnormally warm.
French and Australian geologists have studied the composition of the rock Islands in the southern Indian ocean, and found that here is the formation of "embryonic continent." The study is published in the journal Terra Nova.
It is believed that the continental crust is built up on the borders of continents and oceans, in the so-called subduction zones, where oceanic lithospheric plates plunge into the mantle under the continent. When they are melted and mixed with the material of the base of the continental plates, granite is formed when magma rises and forms the upper, the "granite" layer of the continents.
Russia must participate more actively in the area of climate change, said Deputy Director-General for climate action of the European Commission Clara de La Torre.
She recalled that in the EU there is a gradual reduction in fossil fuel use, but alone the problem of the planet can not be solved.
The fossilized remains of ancient turtles of age 8 million years discovered in the Stavropol region, reports a press-service Severo-the Caucasian Federal University.
It is noted that the unique discovery took place when researching future places of work practice in one of the sand pits of the village of Beshpagir. Kerimov saw the remains of the ancient reptile age 8 million years in the Sarmatian deposits, added in a press-service.
Director of the Barnaul zoo Sergey Pisarev has posted on his page in social networks a shocking video, which showed three to death zakormlen visitors squirrels and urged them not to give food to the animals.
"I understand perfectly, that may be, it is very cruel to put such videos in Instagram, but we just can't do this. The thing is that these whites have died because of being poisoned. Poisoned visitors who throw different food that is not suitable for squirrels," says Pisarev.
Centennial male giant Galapagos tortoise named Diego returned to freedom once saved from extinction their appearance, said Paulo Andrade Proaño, the Minister of environment of Ecuador.
Diego, referring to the Fate of hoodensis, was hatched on the Galapagos island of Espanola, where he took a scientific expedition. More than 30 years he spent in the zoo of the American city of San Diego. In the framework of the recovery of an endangered species Diego returned to the Galapagos Islands, where he actively contributed to the expansion of the population continuing to remain in captivity.
The rapid temperature rise of permafrost under conditions of climate change requires the creation of a unified database to monitor her as in natural conditions, and in the cities, said RIA Novosti Professor at the George Washington University (USA) glaciologist Dmitry Streletsky.
He explained that the system of monitoring of the permafrost is everywhere in some form. "The problem is that there is no coordination. Basically monitoring the background state of permafrost do different groups of scientists, and there is no coordination at the country level", - said the scientist.
A new study by German scientists shows that the height of the largest mountain ranges such as the Andes or the Himalayas, is not determined by the ratio of the speeds of rise and erosion, as previously thought, and tectonic forces holding the mountain at a certain level. The results were published in the journal Nature.
The highest mountain chains on Earth occur along the convergent boundaries of lithospheric plates. On such boundaries one of the plates is indented under another into the mantle of the Earth. This process is called subduction. Over millions of years of interaction in the collision point of the slabs of the mountains rise.
Using climate models, scientists have figured out why after a moderate wet winter and warm spring, there is usually a dry summer. The study is published in the journal Science Advances.
In the summer of 2018, the countries of Central and Northern Europe was struck by a drought caused by an extremely hot summer, which was preceded by an early spring with lots of warm and Sunny days. Before that, a similar pattern was observed in 2003 and 2010. In the latter case, the drought has affected not only Europe, but also Western areas of Russia, and the average summer temperature broke the 500-year record of observations.
A strong earthquake may occur in the national capital district of India, according to the publication Business Today citing geophysicists of certain institutions.
National capital territory of Delhi includes not only the country's capital new Delhi and some districts of nearby States of Haryana, Uttar Pradesh and Rajasthan.
Russian scientists have identified a new species of mites reported in the journal of the Siberian branch of Russian Academy of Sciences "Science in Siberia".
A new species is a hybrid of the taiga tick and the tick Pavlovsky. Scientists suggest that it was formed as a result of the coexistence of two species in the same area, for example, in Primorsky Krai. However, such hybrids are more common in the Novosibirsk region.
Researchers from the University of Colorado (USA) and Australian colleagues have identified the region with the cleanest air on the planet. The work of scientists published in the journal Proceedings of the Natural Academy of Sciences (PNAS).
Due to human activities on Land are almost no places with a "pristine" environment. Scientists have suggested that the clean air can be detected over the so-called Southern ocean – a collection of Pacific, Atlantic and Indian oceans surrounding Antarctica. These places, according to the authors of the study, almost did not felt the influence of aerosol pollution and dust from the continents.
Quarantine imposed in Argentina because of the pandemic, has completely changed not only the way of life of people and animals, about the famous Iguazu falls on the tourist track now walking jaguars, monkeys and pumas, told RIA Novosti the managing of the national Park iguazú (Argentina), Sergio Acosta.
Photo shared by Acosta with RIA Novosti, you can see how monkeys play where once the selfie lovers would spend long time to make a good shot on the background of a stage.
The surface of the river Barn covered by a film of oil of thickness 4-5 inches after the fuel spill in Norilsk, pollution of the lake Pyasino not seen, said to RIA Novosti in RPN.
Earlier, the authorities of Krasnoyarsk region have informed that from-for accidents on CHP in Norilsk from the tank poured out about 20 thousand tons of diesel fuel, caught in the Creek and the river Barn. The Agency is an emergency called ecological catastrophe with long-term negative consequences, noting that "restoration of ecological balance affected Norilo-pyasinskaya water system will take decades."
Filling the reservoirs of the Crimea in may was negligible, the volume of water in all the reservoirs, the natural runoff at the beginning of June is 85 million cubic meters, which is 2.3 times less than in 2019, announced in the Crimean meteorologist.
"Rapid drawdown of the remaining reserves of water reservoirs, natural runoff, total water storage in the early summer made 85,16 million cubic meters, an increase of 9.62 million less than a month ago... the Total stock of water in reservoirs the natural flow to the beginning of this summer on 110,14 million cubic meters less than the beginning of the summer of 2019", - reported in the hydrometeorological center of the Republic.