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One proposed method to reduce carbon dioxide in the atmosphere and mitigate global warming is to pump nutrient-rich water from a certain elevation of depth in the sea to promote the growth of algae in waters where sunlight reaches. But a new study calls into question the benefits of this strategy.
The research was led by Professor Andreas Oschlies Leibniz Institute of Marine Sciences in Kiel, Germany, and it has also intervened Andrew Yool National Oceanography Centre, Southampton, United Kingdom.
If international government policies fail to reduce carbon dioxide emissions to the levels required to keep within tolerable limits the impacts of climate change induced by humans, it is necessary to move to a “Plan B”. This would take one or more strategies for large-scale geoengineering, which have been proposed as a potential means to reduce the increase of carbon dioxide in the atmosphere.
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An international team of scientists is preparing to launch a joint study on the environment of the plateau of Qinghai to Tibet, the region called “third pole” of the world, revealed Yao Tandong, director of the Research Institute of Qinghai-Tibet Academy of Sciences (CAS) [1]. The project was initiated by Chinese scientists, as the TPE, “Third Pole Environment” [2], to conduct joint studies on the mutual influences of water, ice, air, ecosystems and activities of man.
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The new meta-analysis measured the weight on global emissions of carbon dioxide micro-organisms in the soil, which is increased by 1 percent in the last 20 years
Over the past 20 years carbon dioxide in the atmosphere has increased partly due to the increase of 1 per cent of the so-called “soil breathing” due to microorganisms that there are settlements, according to a new study published in the journal Nature signed by researchers at the Pacific Northwest National Laboratory (PNNL) of the Department of Energy of the United States.
During the research has measured the total contribution of soil carbon pollution, a result of 10-15 percent higher than previous measurements and amounted to 98 billion tons. The data allows researchers to formulate a better model of global carbon cycle and its impact on climate change.
“There is a great contribution of soil carbon dioxide throughout the world,” said ecologist Ben Bond-Lamberty of PNNL.
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A team of scientists with Czech participation helped to clarify the role of sulfuric acid in the formation of aerosols in the atmosphere, which is important for studying climate change. Aerosols, unlike the greenhouse gases cool the atmosphere.
Aerosols are a mixture of microscopic solid particles or droplets dispersed in a gas. In the atmosphere reflect and absorb solar radiation. Are used as condensation nuclei for the formation of clouds.
Scientists have long assumed that the smallest particles of matter involving sulfuric acid, but they were not able to prove. In cubic centimeter of air can be from one million to ten million molecules of this acid and the results of various measurements, it appeared that, at such concentrations should not sulfuric acid, play an important role.
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Scientists at the University of Cordoba (UCO) prove the value of crops to sequester CO2 from the atmosphere. Japanese researchers visiting the OCU to meet pioneering research on carbon sequestration in Mediterranean agriculture.
Rainfed agriculture is Andalusian, as demonstrated from a study by the University of Cordoba, one of the best weapons to Spain to meet its commitment to reduce levels of CO2 emitted into the atmosphere. Because, according to research team ‘Herbaceous Crop Agronomy’ directed by Professor Luis Lopez Bellido, these crops helps offset the C02 emissions by new no-till systems and crop rotation that facilitate concentration and permanence of soil carbon.
In this line of work, the team of Lopez Bellido published in the latest issue of Agronomy Journal in a lengthy article exposing the scientific community the results of the field experiment of long duration, called “Malagon, located in the countryside Cordoba, begun 23 years ago, whereby wheat, sunflowers, chickpeas and beans planted in the Andalusian countryside captured annually 4.8 million tonnes of CO2 from the atmosphere, which represents 16% of emissions CO2 in Andalusia and 3% of emissions in Spain.
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Techniques for capturing and storing carbon dioxide (CCS for Carbon Capture and Storage) is a means to reduce emissions from fossil fuels contributing to climate change. They are based on capturing CO2 from large emitters such as power plants (coal, gas, oil, etc..), Heavy industry and cement plants, and storage to prevent their release into the atmosphere. Today, the major agencies involved in global warming believe that the share of these technologies would be between 10 and 55% of the overall effort to reduce supply by 2100. The United States has fully understood this issue and invest significantly for several years, particularly through the Department of Energy, from basic research to development projects demonstrators sized industrial and commercial. To achieve the reduction goals, agencies and U.S. companies now aim to offer customers by 2015, hence the very short term, marketable technology solutions “turnkey”.
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New calculations, made by the University of Sussex Astronomy, predicting that the sun engulf the earth at about 7,600 million years, unless the Earth’s orbit changes.
Robert Smith, a researcher in
astronomy, said his team had calculated that the earth would prevent their ultimate destruction, but would suffer beatings and reduced to ashes, but did not consider the “
tracking effect” of the outer
atmosphere of the Sun
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The planet Venus evolved much faster than the Earth in the early stages of the formation of the solar system, but to lose its oceans in a very short period of geologic evolution of the surface has slowed substantially. This is according to the scientists who analyze data coming from the European probe Venus Express, As explained by the physicist Fred Taylor of Oxford University during the recent National Convention of Astronomy of the Royal Astronomical Society in Belfast (Northern Ireland).
The researchers note that the loss of water from
Venus prevented both the evolution of living beings, including the development of
plate tectonics like the Earth, which would explain why the
geological evolution and the climates of both planets have been different. “The two could look very similar at first,” says Professor Taylor, “but we have increasing evidence that Venus lost most of its water, and our planet lost most of their carbon dioxide atmosphere .
The Earth’s CO2 is stored in the minerals of the earth’s crust, oceans and plants. Its release back into the
atmosphere is of concern now because of global warming and climate change. On Venus, however, most of the CO2 remains in the atmosphere. This, coupled with the high surface temperature slows or stops, scientists say both their geological and biological evolution. For example, the Venusian temperature of 450 ° C is excessive for the development of life as we know it. ”
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It sounds like science fiction, but turns out to be not so far fetched an idea. Given that in space there is any interference in the form of gas and other compounds, as in the atmosphere, Why not put solar panels in space to generate solar power? This is one of the “valuable ideas to waste” in New York recently exposed
According to some scientists have explained in the framework of the conference TED (Ideas Worth Spreading) discussed in New York recently, the placement of several satellites in a fixed orbit, with their respective modules PVCould capture sunlight continuously. Thus, a module placed in the capture space six to eight times more energy than the same module placed in the Land. The problem comes when transporting this energy captured thousands of miles between the satellite’s surface.
To get the energy stored in the orbiting satellites to the surface of the earth to be consumed, researchers have proposed a system based on the microwave. According to scientists, the transmission of energy by high frequency waves (and therefore low wavelength) would be very efficient and would be no threat to living beings.
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The researchers note that the loss of water from Venus prevented both the evolution of living beings, including the development of plate tectonics like the Earth, which would explain why the geological evolution and the climates of both planets have been different. “The two could look very similar at first,” says Professor Taylor, “but we have increasing evidence that Venus lost most of its water, and our planet lost most of their carbon dioxide atmosphere .