Trapping gases better with boron nitride "nanopores"
What is common between a technology for storing energy in a solar cell and that for water purification? They both rely on the use of porous materials, or more specifically, 'nanoporous' materials that can trap gas molecules within narrow spaces on th.....»»
GTUB3 is the first microporous, metal-organic solid that is both conductive and photoluminescent
Researchers at TU Berlin have developed a new material from the class of microporous, metal-organic framework (MOF) compounds. On the one hand, such compounds can store small molecules and gases such as hydrogen, CO2 or even toxins. On the other hand.....»»
Scientists find iron cycling key to permafrost greenhouse gas emissions
The interaction of elemental iron with the vast stores of carbon locked away in Arctic soils is key to how greenhouse gases are emitted during thawing and should be included in models used to predict Earth's climate, Oak Ridge National Laboratory sci.....»»
Chemists use boron radicals to convert nitrogen to ammonia in solution
Ammonia is obtained industrially using the Haber–Bosch process, which requires a lot of energy and hydrogen gas. A much milder approach has now been reported by a team of researchers in the journal Angewandte Chemie International Edition......»»
Antarctic ice: A better knowledge of the ocean improves the predictability of sea ice variability
Antarctic sea ice deeply affects the global climate in several ways. It regulates the exchanges of heat and gases between the ocean surface and the atmosphere, and drives the formation of the Antarctic Bottom Water that travels over global oceans......»»
Study: To save nature, focus on populations, not species
Human-released greenhouse gases are causing the world to warm, and with that warming comes increasing stress for many of the planet's plants and animals. That stress is so great that many scientists believe we are currently in the midst of the "sixth.....»»
Volcano knocks Mauna Loa carbon monitoring station offline
The eruption of Hawaii's Mauna Loa volcano has temporarily knocked off power to the world's premier station that measures heat-trapping carbon dioxide in the atmosphere, but officials Wednesday say it won't be a problem......»»
NASA cancels greenhouse gas monitoring satellite due to cost
NASA is canceling a planned satellite that was going to intensely monitor greenhouse gases over the Americas because it got too costly and complicated......»»
First-of-its-kind experimental evidence defies conventional theories about how plasmas emit or absorb radiation
Most people are familiar with solids, liquids, and gases as three states of matter. However, a fourth state of matter, called plasmas, is the most abundant form of matter in the universe, found throughout our solar system in the sun and other planeta.....»»
Video: Solar snake spotted slithering across sun"s surface
Solar Orbiter has spotted a "tube" of cooler atmospheric gases snaking its way through the sun's magnetic field. The observation provides an intriguing new addition to the zoo of features revealed by the ESA-led Solar Orbiter mission, especially sinc.....»»
Vehicle exhaust emission and ammonia slip are the main sources of atmospheric ammonia and ammonium in North China cities
The haze pollution that frequently occurred in winter in cities of North China has aroused widespread concern. Since the implementation of Air Pollution Prevention and Control Action Plan in 2013, the atmospheric concentration of acidic gases such as.....»»
Carbon dioxide emissions rising globally, but drop in China
The world's burning of coal, oil and natural gas this year is putting 1% more heat-trapping carbon dioxide in the air than last year, bad news for the fight against climate change but with an odd twist, according to scientists who track emissions......»»
The Paris Agreement: Better measurement methods needed
The Paris Agreement says that we should reduce the emission of greenhouse gases to limit the rise in global temperature to 2 degrees Celsius. But do we have the measurement methods needed to achieve this? This is the question posed by researchers at.....»»
Cooking from meal boxes can cut household food waste by 38%—new research
The amount of food wasted by households each year was estimated at 570 million tons in 2019. This is food that has been produced, packaged and taken to shops and homes, only to end up in the bin. Not only is the food wasted, but the greenhouse gases.....»»
Ultra-cold mini twisters: Quantum vortices are a strong indication of superfluidity
A team of quantum physicists from Innsbruck, Austria, led by three-time ERC laureate Francesca Ferlaino has established a new method to observe vortices in dipolar quantum gases. These quantum vortices are considered a strong indication of superfluid.....»»
In nanotube science, is boron nitride the new carbon?
Engineers at MIT and the University of Tokyo have produced centimeter-scale structures, large enough for the eye to see, that are packed with hundreds of billions of hollow aligned fibers, or nanotubes, made from hexagonal boron nitride......»»
Study finds that forest protection is key for reliable rainfall
There won't be many places in the world that have escaped the recent impacts of unusual droughts, floods and unseasonal temperatures. These are often ascribed to the role of greenhouse gases, leading to climate change. But there are additional causes.....»»
Climate Questions: What are the sources of emissions?
Greenhouse gases, like carbon dioxide, methane, nitrous oxide and fluorinated gases, are all heating up the planet. So what are the main human activities that cause them?.....»»
UN weather agency: Greenhouse gases reach new record in 2021
The three main greenhouse gases hit record high levels in the atmosphere last year, the U.N. weather agency said Wednesday, calling it an "ominous" sign as war in Ukraine, rising costs of food and fuel, and other worries have elbowed in on longtime c.....»»
Climate Questions: Who are the big emitters?
Who made the global warming mess the world is now in? More than half of the world's heat-trapping gases comes from three places: The United States, China and Europe......»»
Using the ocean to fight climate change raises serious environmental justice and technical questions
Heat waves, droughts and extreme weather are endangering people and ecosystems somewhere in the world almost every day. These extremes are exacerbated by climate change, driven primarily by increasing emissions of greenhouse gases that build up in th.....»»