Current Greenhouse gases News and Events

Current Greenhouse gases News and Events, Greenhouse gases News Articles.
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Almost like on Venus
A team of international scientists led by ETH researcher Paolo Sossi has gained new insights into Earth's atmosphere of 4.5 billion years ago. Their results have implications for the possible origins of life on Earth. (2020-11-25)

Restoration of degraded grasslands can benefit climate change mitigation and key ecosystem services
New research has demonstrated how, in contrast to encroachment by the invasive alien tree species Prosopis julifora (known as `Mathenge` -in Kenya or `Promi` in Baringo), restoration of grasslands in tropical semi-arid regions can both mitigate the impacts of climate change and restore key benefits usually provided by healthy grasslands for pastoralists and agro-pastoralist communities. (2020-11-24)

COVID-19 virus survives on surfaces within thin film
To find out how the COVID-19 virus survives on surfaces, researchers are exploring the drying times of thin liquid films that persist after most respiratory droplets evaporate. While the drying time of typical respiratory droplets is on the order of seconds, the survival time of the COVID-19 virus was on the order of hours. In Physics of Fluids, the researchers describe how a nanometers-thick liquid film clings to the surface, allowing the virus to survive. (2020-11-24)

Starved, stuffed and squandered: Consequences of decades of global nutrition transition
Just a handful of rice and beans - a part of our world is starved. Hawaiian Pizza and ice-cream - another part of our world is stuffed, throwing away food every day. This gap is likely to worsen, while food waste will increase and pressure on the environment will go up, a new study shows. (2020-11-18)

New technique seamlessly converts ammonia to green hydrogen
Northwestern University researchers have developed a highly effective, environmentally friendly method for converting ammonia into hydrogen. The new technique is a major step forward for enabling a zero-pollution, hydrogen-fueled economy. The idea of using ammonia as a carrier for hydrogen delivery has gained traction in recent years because ammonia is much easier to liquify than hydrogen and is therefore much easier to store and transport. Northwestern's technological breakthrough overcomes several existing barriers to the production of clean hydrogen from ammonia. (2020-11-18)

Reducing aerosol pollution without cutting carbon dioxide could make the planet hotter
Humans must reduce carbon dioxide and aerosol pollution simultaneously to avoid weakening the ocean's ability to keep the planet cool, new UC Riverside research shows. (2020-11-17)

Report: In retrospect, the burning of wood in district heating plants has resulted in climate saving
A new report from the University of Copenhagen shows that the burning of wood is significantly more climate friendly than coal and slightly more climate friendly than natural gas over the long run. For the first time, researchers quantified what the conversion of 10 Danish cogeneration plants from coal or natural gas to biomass has meant for their greenhouse gas emissions. (2020-11-17)

Farms, tables and vast impacts between and beyond
New sustainability science tools show places that have no major stake in the plant-water-eat game end up paying an environmental price. (2020-11-17)

Cellular powerplant recycles waste gases
Carbon monoxide is a very poisonous gas. Humans die within minutes when they inhale it. However, some microorganisms tolerate carbon monoxide. Knowledge about how these bacteria survive opens a window into the primeval times of the earth and the origin of life. At the same time, they might be useful for the future as they can be used to clean waste gases and produce biofuels. Scientists from the Max Planck Institute for Marine Microbiology in Bremen have now made a surprising discovery. (2020-11-16)

Exercised over nothing: Masks don't impair lung function during physical activity
A team of American and Canadian researchers report that while they may feel uncomfortable, there is little empirical evidence that wearing a facemask significantly diminishes lung function, even when worn during heavy exercise. (2020-11-16)

Environmentally friendly method could lower costs to recycle lithium-ion batteries
A new process for restoring spent cathodes to mint condition could make it more economical to recycle lithium-ion batteries. The process, developed by nanoengineers at the University of California San Diego, is more environmentally friendly than today's methods; it uses greener ingredients, consumes 80 to 90% less energy, and emits about 75% less greenhouse gases. (2020-11-12)

Climate change: Ending greenhouse gas emissions may not stop global warming
Even if human-induced greenhouse gas emissions can be reduced to zero, global temperatures may continue to rise for centuries afterwards, according to a simulation of the global climate between 1850 and 2500 published in Scientific Reports. (2020-11-12)

Engineering a way out of climate change: Genetically modified organisms could be the key
Fighting the imminent climate change crisis has now become a global priority. In this regard, scientists in the US have discussed how gene editing technology can modify plants and organisms to reduce atmospheric CO2 and slow down climate change. They also consider potential obstacles to widespread use of these genetically modified organisms, including ethical problems and public resistance due to safety concerns. (2020-11-11)

Researchers discover a new way to produce hydrogen using microwaves
A team of researchers from the Universitat Politècnica de València and the Spanish National Research Council has discovered a new method that makes it possible to transform electricity into hydrogen or chemical products by solely using microwaves - without cables and without any type of contact with electrodes. (2020-11-11)

The universe is getting hot, hot, hot, a new study suggests
The universe is getting hotter, a new study has found. The study, published Oct. 13 in the Astrophysical Journal, probed the thermal history of the universe over the last 10 billion years. It found that the mean temperature of gas across the universe has increased more than 10 times over that time period and reached about 2 million degrees Kelvin today -- approximately 4 million degrees Fahrenheit. (2020-11-10)

Cutting emissions makes North Atlantic focus of ocean heat uptake under global warming
Scientists discover an obvious hemispheric asymmetry in Ocean Heat Undertake (OHU) under the low-emission scenario. In the long term, North Atlantic OHU keeps increasing and will become the main region of OHU. (2020-11-09)

Drop in pandemic CO2 emissions previews world of electric vehicles
When the SF Bay Area mandated shelter-in-place March 16, it created a natural experiment for UC Berkeley's Ron Cohen, who had established an inexpensive pollution sensor network in local neighborhoods. The sensors showed carbon dioxide emissions plummeting 25% in the subsequent six weeks, mostly because of a 48% drop in traffic. Networks like this -- soon to be emplaced in Glasgow -- can track greenhouse gases and progress toward lowering them, including the impact of electric vehicles (2020-11-09)

Decrease in fossil-fuel CO2 emissions due to COVID-19 detected by atmospheric observations
Atmospheric observations at Hateruma Island, Japan, successfully detected the decrease in fossil-fuel CO2 emissions in China associated with the COVID-19 outbreak. The weather in Hateruma island is frequently influenced by the northwest monsoon travelling over China, which carries the emission signals of air pollutants. The observed ratios of CO2 and CH4 variabilities showed a significant decrease during February-March 2020, corresponding to about a 30% decrease in China's fossil-fuel CO2 emissions, according to a chemistry-transport model simulation. (2020-11-06)

Global food system emissions threaten achievement of climate change targets
Even if greenhouse gas emissions from fossil fuel use in the global food system were immediately halted, the remaining greenhouse gasses otherwise produced from global food production would make meeting the Paris Agreement's target of limiting temperature increases to 1.5° Celsius (C) above preindustrial levels very difficult, a new study reports. (2020-11-05)

Reducing global food system emissions key to meeting climate goals
Reducing fossil fuel use is essential to stopping climate change, but that goal will remain out of reach unless global agriculture and eating habits are also transformed. (2020-11-05)

Keeping our cool
Fossil fuel burning accounts for the majority of global greenhouse gas emissions, and to the world's credit, several countries are working to reduce their use and the heat-trapping emissions that ensue. The goal is to keep global temperatures under a 1.5° to 2°C increase above preindustrial levels -- the upper limits of the Paris Climate Agreement. (2020-11-05)

Biologists shed light on mystery of how microbes evolve and affect hosts
While associations between microbes and their hosts have long been known, little is known about how microbes evolve and how their evolution affects the health of their hosts. Now, researchers find that as microbes evolve and adapt to their unique hosts, they become less beneficial to hosts of other genotypes, suggesting that there is probably not one universally healthy microbiome and that transplanted microbes need time to adapt to a host before they bring benefits. (2020-11-02)

Resistance and challenges to Green Deals should not be underestimated
A Perspective by the EASAC Environment Steering Panel (2020-10-29)

Expect more mega-droughts
Mega-droughts - droughts that last two decades or longer - are tipped to increase thanks to climate change, according to University of Queensland-led research. (2020-10-29)

Waste not, want not: recycled water proves fruitful for greenhouse tomatoes
In the driest state in the driest continent in the world, South Australian farmers are acutely aware of the impact of water shortages and drought. So, when it comes to irrigation, knowing which method works best is vital for sustainable crop development. (2020-10-29)

Leaving more big fish in the sea reduces CO2 emissions
Leaving more big fish--like tuna, sharks, mackerel and swordfish--in the sea reduces the amount of carbon dioxide (CO2) released into the Earth's atmosphere.This is because when a fish dies in the ocean it sinks to the depths and sequestrates all the carbon it contains with it. This is a form of 'blue carbon'. Big fish are about 10 to 15 percent carbon. (2020-10-28)

Saving the climate from the ground up
Soil has the capacity to bind large quantities of carbon in the long term. An international team of researchers is now advocating effective use of this potential. Experts estimate that this could reduce the increase of the greenhouse gas carbon dioxide in the atmosphere by a third. At the same time, agricultural yields in many regions would also increase significantly. In a recent publication they present a strategy to achieve these goals. (2020-10-27)

Ice loss due to warming leads to warming due to ice loss: a vicious circle
The loss of huge ice masses can contribute to the warming that is causing this loss and further risks. A new study now quantifies this feedback by exploring long-term if-then-scenarios. (2020-10-27)

A new material for separating CO2 from industrial waste gases, natural gas, or biogas
With the new material, developed at the University of Bayreuth, the greenhouse gas carbon dioxide (CO2) can be specifically separated from industrial waste gases, natural gas, or biogas, and thereby made available for recycling. The separation process is both energy efficient and cost-effective. (2020-10-20)

Paper recycling must be powered by renewables to save climate
The study, published in Nature Sustainability, found that greenhouse gas emissions would increase by 2050 if we recycled more paper, as current methods rely on fossil fuels and electricity from the grid. (2020-10-19)

Unprecedented energy use since 1950 has transformed humanity's geologic footprint
A new study makes clear the extraordinary speed and scale of increases in energy use, economic productivity and global population that have pushed the Earth towards a new geological epoch, known as the Anthropocene. (2020-10-16)

Membranes for capturing carbon dioxide from the air
CO¬2 capture from the air can mitigate further CO2 emissions, related increase in global temperature and climate change. Direct air capture of CO2 (DAC) is one of the promising ways for atmospheric CO2 extraction. In a new research paper, researchers propose CO2 capture from the air by membranes, which has been considered almost impossible for this challenging task. (2020-10-16)

RUDN University soil scientist: Paddy soil fertilization can help reduce greenhouse effect
A soil scientist from RUDN University discovered the effect of fertilization on the ability of the soil to retain carbon. To understand this mechanism, he and his team studied the movement of organic carbon in the soil of rice paddies. The results of the study can help increase the fertility of the paddies while at the same time reducing the volume of greenhouse gases in the atmosphere. (2020-10-16)

A controllable membrane to pull carbon dioxide out of exhaust streams
A system developed by chemical engineers at MIT could provide a way of continuously removing carbon dioxide from a stream of waste gases, or even from the air. The key component is an electrochemically assisted membrane whose permeability to gas can be switched on and off at will, using no moving parts and relatively little energy. (2020-10-16)

Arctic Ocean sediments reveal permafrost thawing during past climate warming
Sea floor sediments of the Arctic Ocean can reveal how permafrost responds to climate warming. Researchers from Stockholm University has found evidence of past permafrost thawing during climate warming events at the end of the last ice age. Their findings, published in Science Advances, caution about what could happen in the near future: Arctic warming by only a few degrees Celsius may trigger massive permafrost thawing, coastal erosion, and the release of greenhouse gases. (2020-10-16)

Removal of dairy cows from the United States may reduce essential nutrient supply with little effect on greenhouse gas emissions
A suggested solution to increasing food production worldwide while reducing greenhouse gas emissions has been to eliminate or reduce animal production in favor of plant production. In an article appearing in the Journal of Dairy Science, scientists from Virginia Tech and the US Dairy Forage Research Center studied the effects of dairy product removal on greenhouse gas emissions and nutrient availability in US diets under various removal scenarios. (2020-10-15)

Thawing permafrost releases organic compounds into the air
When permafrost thaws due to global warming, not only the greenhouse gases known to all, but also organic compounds are released from the soil. They may have a significant impact on climate change. (2020-10-14)

Act now on wildfires, global climate change, human health, study says
Immediate actions are needed to limit the greenhouse gas emissions that are driving climate change that helps fuel wildfires, a Monash University study says. (2020-10-13)

Winners and losers of energy transition
Drastically reducing greenhouse gas emissions in the electricity sector could have substantial economic and social impacts. Some regions might benefit more than others from new employment opportunities and from reduced air pollution, while others face threats to employment. Such a transition to renewable electricity thus risks creating new regional winners and losers. In a study published in Nature Communications, scientists from the University of Geneva (UNIGE) quantify regional impacts associated with Central European electricity targets. (2020-10-13)

Temperature evolution of impurities in a quantum gas
A new, Monash-led theoretical study advances our understanding of the role of thermodynamics in the 'quantum impurity' problem, which studies the behaviour of deliberately introduced atoms (ie, 'impurities') that behave as particularly 'clean' quasiparticles within a background atomic gas, allowing a controllable 'perfect test bed' study of quantum correlations. (2020-10-13)

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