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.....»»
Process for the optical analysis of trace gases optimized
Laser-based absorption spectroscopy is an important method for determining the concentration of gas components in a sample. Modern devices are highly specialized for detecting very specific gases, such as trace gases in the atmosphere, in combustion.....»»
Secrets of a hot Saturn and its spotted star unlocked
A team of astronomers including McGill Professor Nicolas Cowan has unraveled the enigmatic atmosphere of the exoplanet HAT-P-18 b, shedding light on its intriguing blend of gases, clouds, and even the effects of its star's activity.....»»
Collaborative review unveils the potential of graphene in advancing nitride semiconductor technology
In a comprehensive review, researchers from Soochow University, Beijing Graphene Institute and Xiamen Silan Advanced Compound Semiconductor Co., Ltd. have collaborated to provide a systematic overview of the progress and potential applications of gra.....»»
Are diamonds GaN"s best friend? Revolutionizing transistor technology
Researchers at Osaka Metropolitan University are proving that diamonds are so much more than just a girl's best friend. Their groundbreaking research focuses on gallium nitride (GaN) transistors, which are high-power, high-frequency semiconductor dev.....»»
New study sheds light on how much methane is produced from Arctic lakes and wetlands
When it comes to greenhouse gases, methane is one the biggest contributors. Not only is it massively abundant—it's about 25 times more potent than carbon dioxide at trapping heat in the atmosphere......»»
Permselectivity reveals a cool side of nanopores
Researchers from Osaka University investigated the thermal energy changes across nanopores that allow the selective flow of ions. Switching off the flow of ions in one direction led to a cooling effect. The findings have applications in nanofluidic d.....»»
Researchers transform captured greenhouse gases into cyclic carbonates with biomass derivatives
Carbon dioxide is the main contributor to greenhouse gas emissions, which are responsible for global warming and climate change. Direct capture of CO2 in the air is one of the solutions proposed to reduce its concentration in the atmosphere, but comb.....»»
Researchers serve up an improved model of indoor pollution produced by cooking
Stir-frying yields more than just tasty dishes like Kung Pao chicken and Hunan beef. It also emits an invisible mixture of gases and particles that pollute indoor air and can be detrimental to human health. Correctly estimating such cooking emissions.....»»
Recent advances in built-in electric-field-assisted photocatalytic dry reforming of methane
Methane (CH4) and carbon dioxide (CO2) are the two main greenhouse gases that cause global warming. Dry reforming of methane (DRM) technology can simultaneously utilize two greenhouse gases to produce hydrogen (H2) and carbon monoxide (CO), meaning D.....»»
Capital, canaries, or catalysts: Insurance industry"s role in tackling climate change risks
Throughout the 19th and 20th centuries, canaries were used in coal mines to assess the risk of toxic gases. If the birds became ill or passed away, their fate served as a warning for miners to vacate the premises......»»
Achieving multicolor persistent and photostimulated luminescence through trap distribution engineering
Electron-trapping materials (ETMs) with persistent luminescence (PersL) or photostimulated luminescence (PSL) hold great promise for versatile applications, due to their distinctive characteristics of energy harvesting and controllable release......»»
The big emitters: the United States
The United States, the world's second largest emitter of greenhouse gases, has pledged to halve its emissions by 2030 compared to 2005 levels—but so far is failing to stay on target, analysts say......»»
Human rights law demands climate change adaptation, researchers say
Continued high emissions of greenhouse gases mean the well-being of all people now depends on profound changes in policies and practices to effect climate change adaptation......»»
To save the climate, the oil and gas sector must slash planet-warming operations, report says
The oil and gas sector, one of the major emitters of planet-warming gases, will need a rapid and substantial overhaul for the world to avoid even worse extreme weather events fueled by human-caused climate change, according to a report released Thurs.....»»
U.S. finalizes rule requiring states to set transportation emission targets
The Federal Highway Administration, part of the U.S. Department of Transportation, said the rule adds a new method for measuring and reporting greenhouse gases associated with transportation and allows states to track performance......»»
Research provides new methods to improve capture rates of ground-dwelling arthropods using pitfall trapping
Pitfall traps are commonly used for capturing ground-dwelling arthropods, particularly beetles, ants, and spiders. The efficiency of a pitfall trapping system is significantly influenced by the quantity and size of traps, the spatial distribution of.....»»
Scientists set the stage for quantum chemistry in space on NASA"s cold atom lab
For the first time in space, scientists have produced a mixture of two quantum gases made of two types of atoms. Accomplished with NASA's Cold Atom Laboratory aboard the International Space Station, the achievement marks another step toward bringing.....»»
Greenhouse gases hit record high in 2022: UN
Greenhouse gas concentrations in the atmosphere hit new record highs in 2022, with no end in sight to the rising trend, the United Nations warned Wednesday......»»
Q&A: How can cities fight climate change and still stay within legal guardrails?
Many U.S. cities are leading the way in cutting emissions of greenhouse gases, with mandates on more efficient buildings, renewable energy and expansion of mass transit. But often these efforts face hurdles in the form of state and federal laws that.....»»
Pushing the limits of gas sensing technology
The world has become increasingly industrialized over the past few centuries, bringing all sorts of technology and conveniences to the masses. However, workers in industrial environments are often at risk of exposure to many dangerous gases, such as.....»»