Popular Atmospheric News and Current Events

Popular Atmospheric News and Current Events, Atmospheric News Articles.
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The invisible smallest particles matter for the air we breathe
Researchers of the University of Helsinki have resolved for the first time, how the ultrafine particles of atmosphere effect on the climate and health. (2021-02-23)

Early Earth haze may have spurred life, says University of Colorado study
Hazy skies on early Earth could have provided a substantial source of organic material useful for emerging life on the planet, according to a new study led by the University of Colorado at Boulder. (2006-11-06)

Scientist emphasizes importance of multi-level thinking
An unusual paper by Prof. Michael E. McIntyre from University of Cambridge touches on a range of deep questions, including insights into the nature of science itself, and of scientific understanding -- what it means to understand a scientific problem in depth -- and into the communication skills necessary to convey that understanding and to mediate collaboration across specialist disciplines. (2017-08-17)

How seafloor weathering drives the slow carbon cycle
A previously unknown connection between geological atmospheric carbon dioxide cycles and the fluctuating capacity of the ocean crust to store carbon dioxide has been uncovered by two geoscientists from the University of Sydney. Better understanding of the slow carbon cycle will help us predict to what extent the continents, oceans and ocean crust will take up the extra human-induced rise in atmospheric carbon dioxide in the long run. (2018-02-14)

Invisible gases form most organic haze in urban, rural areas
A new study involving the University of Colorado at Boulder shows that invisible, reactive gases hovering over Earth's surface, not direct emissions of particulates, form the bulk of organic haze in both urban and rural areas around the world. (2007-07-09)

Journal AAS publishes first data description paper: Data collection and sharing
AAS published its first data description paper on June 8, 2017. The paper describes two datasets of ultraviolet radiation in China. (2017-06-10)

UGR research calls current methods of studying photosynthesis into question
New theory developed by Prof. Andrew Kowalski, which records non-diffusive gas transport, key to calculating water use efficiency and CO2 concentrations in plants. (2017-12-07)

NASA sees second Tropical soaking in Southern Philippines
NASA's Aqua satellite passed over the Philippines and infrared imagery showed that Tropical Storm Tembin contained strong thunderstorms with heavy rainmaking potential as it moved across Mindanao in the southern part of the country. The southern Philippines recently experienced a soaking from what is now Tropical Depression Kai-Tak. (2017-12-22)

The critical importance of mangroves to ocean life
Mangrove plants, whose finger-like roots are known to protect coastal wetlands against the ocean and as important fish habitats, cover less than 0.1 percent of the global land surface yet account for a tenth of the dissolved organic carbon (DOC) that flows from land to the ocean. The plants are one of the main sources of dissolved organic matter in the ocean. (2006-02-27)

Quantifying the greenhouse gas footprint of crop cultivation
The GHG footprint is an index used to indicate the climate change impact potential exerted by crop production. However, severe problems or drawbacks in the quantification of GHG footprints still exist, which has limited the applicability of the GHG footprint in crop cultivation. A generic methodological framework is proposed to quantify the GHG footprints of crop cultivation systems free from grazing. (2017-12-06)

Getting the most out of atmospheric data analysis
An international team including researchers from Kanazawa University used a new approach to analyze an atmospheric data set spanning 18 years for the investigation of new-particle formation. They found that their method -- based on mutual information -- supported the major findings of previous work, whilst being more accurate and easier to carry out. The method is expected to provide a useful tool for analyzing other variables that influence atmospheric processes. (2018-10-26)

Where is heavy air pollution in Beijing from?
The heavy haze formation in Beijing is depicted as 'initiated by the regional transport mainly from the coal burning in surrounding areas, and intensified by the local secondary formation originated from the motor vehicles.' (2017-01-09)

Ozone watch
The symposium covers all issues related to atmospheric ozone, including trends of ozone in the stratosphere and troposphere, ozone-climate interactions, latest emerging techniques for ozone observations, and effects of ozone on human health, ecosystems and food production. Future challenges for stratospheric and tropospheric ozone are highlighted. (2017-02-01)

Vertical measurements of air pollutants in urban Beijing
Scientists from CAS Institute of Atmospheric Physics use vertically resolved observation system based on the Beijing 325m Meteorological Tower to gain an in-depth understanding of the vertical evolution characteristics of air pollutants within urban boundary layer.They find that that the temperature inversion coupled by the interactions of different air masses elucidated the 'blue sky -- haze' co-existent phenomenon. (2018-03-02)

The secret life of cloud droplets
Do water droplets cluster inside clouds? Researchers confirm two decades of theory with an airborne imaging instrument. (2018-12-19)

Haze pollution affects satellite cloud detection
Scientists compare cloud detection from four sensors onboard the 'A-Train' satellite constellation during two severe haze episodes in winter 2015-2016 and suggest that in severe haze weather the cloud product of MODIS should be used with caution. (2017-11-27)

Greenhouse gas effect consistent over 420 million years
New calculations show that sensitivity of Earth's climate to changes in the greenhouse gas carbon dioxide (CO2) has been consistent for the last 420 million years, according to an article in Nature by geologists at Yale and Wesleyan Universities. The study confirms that in the Earth's past 420 million years, each doubling of atmospheric CO2 translates to an average global temperature increase of about 3° Celsius, or 5° Fahrenheit. (2007-03-28)

Pluto's hydrocarbon haze keeps dwarf planet colder than expected
The gas composition of a planet's atmosphere generally determines how much heat gets trapped in the atmosphere. For the dwarf planet Pluto, however, the predicted temperature based on the composition of its atmosphere was much higher than actual measurements taken by NASA's New Horizons spacecraft in 2015. A new study published November 16 in Nature proposes a novel cooling mechanism controlled by haze particles to account for Pluto's frigid atmosphere. (2017-11-15)

Mars exhumes methane on a seasonal cycle, Curiosity reveals; rover also detects ancient organic matter
Data from the Curiosity rover, part of two separate studies, furthers scientists' understanding of methane on Mars -- suggesting some of it may be trapped in water-based crystals -- and identifies additional carbon-bearing molecules, central to understanding processes and conditions on the planet. (2018-06-07)

City College-led experts develop flood prediction model
The duration of floods can be determined by river flow, precipitation and atmospheric blocking. Now an international team of researchers led by Nasser Najibi and Naresh Devineni at The City College of New York is offering a novel physically based Bayesian network model for inference and prediction of flood duration. The model also accurately examines the timescales of flooding. (2019-07-15)

Acid rain has a disproportionate impact on coastal waters
The release of sulfur and nitrogen into the atmosphere by power plants and agricultural activities plays a minor role in making the ocean more acidic on a global scale, but the impact is greatly amplified in the shallower waters of the coastal ocean, according to new research by atmospheric and marine chemists. (2007-09-07)

UK regional weather forecasts could be improved using jet stream data
Weather forecasters could be able to better predict regional rainfall and temperatures by using North Atlantic jet stream data, according to new research. Climate scientists examined the relationship between changes in North Atlantic atmospheric circulation -- or jet stream -- and UK regional weather variations during summer and winter months over the past 65 years, and found that the jet stream changes were significantly associated with variations in regional rainfall and temperatures. (2018-01-30)

First direct observations of methane's increasing greenhouse effect at the Earth's surface
Scientists have directly measured the increasing greenhouse effect of methane at the Earth's surface for the first time. A research team from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) tracked a rise in the warming effect of methane - one of the most important greenhouse gases for the Earth's atmosphere - over a 10-year period at a DOE field observation site in northern Oklahoma. (2018-04-02)

Beneficial effects of no-till farming depend upon future climate change
By storing carbon in their fields through no-till farming practice, farmers can help countries meet targeted reductions in atmospheric carbon dioxide and reduce the harmful effects of global warming. However, researchers say, the amount of carbon stored in soils depends on how the climate changes and how much carbon dioxide is in the atmosphere. (2005-10-13)

Anti-tumor effect of novel plasma medicine caused by lactate
Nagoya University researchers developed a new physical plasma-activated salt solution for use as chemotherapy. Lactate was identified as the key anti-tumor component. The solution killed brain tumor cells in vitro and reduced the tumor volume in mice, revealing the potential of plasma-activated liquids in clinical applications. (2016-12-13)

Non-thermal atmospheric pressure plasma treatment
India is a second largest producer of leather, and being so, leather production and dyeing significantly contribute to pollution of water resources in India. Consistent dyeing of leather is difficult due to the unique nature of the raw material (matrix of collagen fibers), thus leather dyeing and finishing involves numerous wet chemical treatments having huge environmental impacts. (2017-08-29)

Permian volcanism contributed to atmospheric greenhouse gas content in Antarctica
The Choiyoi magmatic Province, with an estimated volume of ~1.3 million square kilometers, represents a voluminous Permian subduction-related volcanic episode that has thus far been described only from South America. In their new paper for Lithosphere, Demian Nelson and John Cottle investigated Permian volcaniclastic rocks from central Antarctica to determine the potential magmatic source of volcanic detritus in southwestern Gondwana. (2019-04-02)

Greenland ice core analysis shows drastic climate change near end of last ice age
Information gleaned from a Greenland ice core by an international science team shows that two huge Northern Hemisphere temperature spikes prior to the close of the last ice age some 11,500 years ago were tied to fundamental shifts in atmospheric circulation. (2008-06-19)

Is Arctic warming influencing the UK's extreme weather?
Severe snowy weather in winter or extreme rains in summer in the UK might be influenced by warming trends in the Arctic, according to climate scientists in the US and the UK. (2018-01-04)

A battery prototype powered by atmospheric nitrogen
As the most abundant gas in Earth's atmosphere, nitrogen has been an attractive option as a source of renewable energy. But nitrogen gas doesn't break apart under normal conditions, presenting a challenge to scientists who want to transfer the chemical energy of its triple bond into electricity. In the journal Chem, researchers in China present one approach to capturing atmospheric nitrogen that can be used in a battery. (2017-04-13)

Scientists discovered where black carbon comes from in the Arctic in winter and summer
Scientists from seven countries published an article on the study of the sources of black carbon (BC) emissions in the Arctic. BC aerosols are formed under incomplete fossil fuel combustion and biomass burning. Soot which is the main component of BC amplifies the melting of snow and ice cover, accelerating global warming. Based on the complex elemental and isotopic analysis the scientists revealed the seasonal contribution of various Arctic areas to BC emissions. (2019-02-15)

Loss of work productivity in a warming world
Heat stress affects the health of workers and reduces the work productivity by changing the ambient working environment thus leading to economic losses. Scientists identified the regions of vulnerability to heat waves that might have been overlooked in the past. (2018-10-26)

Human activities worsen air quality in Dunhuang, a desert basin in China
Due to the increasing contribution of human activities, air quality has become worse in the most recent decade over the Dunhuang area, and the main reason is a shift to a mixture of coarse and fine particles, having previously been due to dust aerosol alone. (2017-06-29)

How a moon slows the decay of Pluto's atmosphere
A new study from the Georgia Institute of Technology provides additional insight into relationship between Pluto and its moon, Charon, and how it affects the continuous stripping of Pluto's atmosphere by solar wind. When Charon is positioned between the sun and Pluto, the research indicates that the moon can significantly reduce atmospheric loss. (2017-01-09)

Ozone recovery may be delayed by unregulated chemicals
Recent increases in an unregulated ozone-depleting substance, could delay recovery of Antarctic ozone levels by 5-30 years, depending on emissions scenarios. The findings, published in Nature Communications, suggest that a previously ignored chemical called dichloromethane may now be contributing to ozone depletion. (2017-06-27)

How global warming is drying up the North American monsoon
Previous researchers had concluded that global warming was simply delaying the North American monsoon, which brings summer rains to the southwestern US and northwestern Mexico. But a new, high-resolution climate model that corrects for persistent sea surface temperature (SST) biases now accurately reflects current rainfall conditions and demonstrates that the monsoon is not simply delayed, but that the region's total rainfall is facing a dramatic reduction. (2017-10-09)

Lake water recharged by atmospheric precipitation in the Badain Jaran Desert
The water sources for the many of the lakes in the Badain Jaran Desert have been the focus of controversy in recent years. Now researchers have shown several lines of evidence, such as the physical and chemical deposits resulting from shallow subsurface runoff, spring streams, infiltration-excess runoff, and gravity capillary water with a moisture content of 3%-6%, demonstrating that precipitation reaches the base of the megadunes through infiltration and subsequently becomes lake water. (2017-05-04)

Oldest evaporite deposit to date provides unique look into early Earth's atmosphere
An analysis of salt mineral sediments, or evaporites, from the oldest deposit of this type discovered to date provides a unique window on the atmospheric conditions of early Earth following the Great Oxidation Event 2.3 billion years ago. (2018-03-22)

Alligator egg development at prehistoric oxygen levels
The development of bone structures in alligator eggs raised under varying oxygen concentrations creates a link to fossil records of the evolution of vertebrates and prehistoric atmospheric oxygen concentrations, according to a paper to be presented at the Earth System Processes 2 meeting in Alberta, Canada. (2005-08-03)

Study: Climate change reshaping how heat moves around globe
The Earth's atmosphere and oceans play important roles in moving heat from one part of the world to another, and new research is illuminating how those patterns are changing in the face of climate change. (2019-01-28)

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