Current Emissions News and Events

Current Emissions News and Events, Emissions News Articles.
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SwRI scientists image a bright meteoroid explosion in Jupiter's atmosphere
From aboard the Juno spacecraft, a Southwest Research Institute-led instrument observing auroras serendipitously spotted a bright flash above Jupiter's clouds last spring. The Ultraviolet Spectrograph (UVS) team studied the data and determined that they had captured a bolide, an extremely bright meteoroid explosion in the gas giant's upper atmosphere. (2021-02-22)

Should Uber and Lyft be electrifying more vehicles?
Increases in air pollution and greenhouse gas emissions caused by ridesourcing impact human health and the environment--what happens when companies shoulder that cost? (2021-02-19)

Unexpected decrease in ammonia emissions due to COVID-19 lockdowns
Scientists introduced machine learning algorithms to models that separated meteorological influences and confirmed that the actual atmospheric ammonia concentration dropped to a new minimum during the 2020 Spring Festival at both urban and rural sites. (2021-02-18)

Shale gas development in PA increases exposure of some to air pollutants
Air pollution levels may have exceeded air quality standards during the development of some Marcellus Shale natural gas wells in Pennsylvania, potentially impacting more than 36,000 people in one year alone during the drilling boom, according to Penn State scientists. (2021-02-18)

Silencing the alarm
Like a scene from a horror movie, tomato fruitworm caterpillars silence their food plants' cries for help as they devour their leaves. That is the finding of a multidisciplinary team of researchers, who said the results may yield insights into the abilities of crop plants -- such as tomato and soybean -- to withstand additional stressors, like climate change. (2021-02-17)

NASA-funded network tracks the recent rise and fall of ozone depleting pollutants
A short-lived resurgence in the emission of ozone depleting pollutants in eastern China will not significantly delay the recovery of Earth's protective 'sunscreen' layer, according to new research published Feb. 10 in Nature. (2021-02-17)

Record sunshine during first COVID-19 lockdown largely caused by unusual weather
Exceptional weather conditions were mainly responsible for high solar radiation, not the aerosol reduction due to the shutdown of industry and reduced traffic in the first lockdown / International research team continues to develop climate simulations that take into account influences of the COVID-19 pandemic. (2021-02-16)

RUDN University biologists studied the effect of jungles on global warming
Biologists from RUDN University described the role of tropical rainforests in the production of methane, the second most harmful greenhouse gas after CO2. It turned out that some areas of rainforests not only consumed methane but also emitted it. (2021-02-16)

Electricity source determines benefits of electrifying China's vehicles
Researchers have concluded air quality and public health benefits of EVs -- as well as their ability to reduce carbon emissions -- in China are dependent on the type of transport electrified and the composition of the electric grid. (2021-02-16)

The vertical evolution of volatile organic compounds vary between winter and summer
Scientists have discovered that pollution concentration varies between seasons. A new study, conducted in the North China Plain, determined where volatile organic compounds (VOCs) are distributed within the vertical layers of the atmosphere, and found notable changes from winter to summer. (2021-02-15)

Emissions of banned ozone-depleting substance back on decline
After a mysterious and sharp increase between 2012 and 2017 that could be traced to eastern China global emissions of a potent (and banned) substance notorious for depleting the Earth's ozone layer - the protective barrier that absorbs the Sun's harmful UV rays - have fallen rapidly in recent years and are now as low as never before since measurements began in this region in 2008, according to new atmospheric analyses published in Nature today. (2021-02-11)

Brazil: Air conditioning equipment days of use will double without climate action
Increasing demand for space cooling in Brazil will increase greenhouse gas emissions by 70-190% due to air conditioners, depending on how much we will mitigate climate change. A study carried out with the contribution of CMCC@Ca'Foscari explains the relationship between climate change, space cooling needs, and electricity demand in different regions of the country. (2021-02-10)

Research shows emissions of banned ozone-depleting substance are back on the decline
Global emissions of a potent substance notorious for depleting the Earth's ozone layer -- the protective barrier which absorbs the Sun's harmful UV rays -- have fallen rapidly and are now back on the decline, according to new research. (2021-02-10)

Traffic reductions due to COVID-19 boost air quality in some states but not all
Dramatic decreases in traffic caused by COVID-19 shutdowns improved air quality in car-dependent states but didn't offset additional forms of pollution in other parts of the country. (2021-02-10)

Reductions in CFC-11 emissions put ozone recovery back on track
An international research team, including scientists from MIT, have observed a global reduction of the banned ozone-depleting chemical CFC-11, after it spiked unexpectedly several years ago. (2021-02-10)

Limiting warming to 2 C requires emissions reductions 80% above Paris Agreement targets
Even if all countries meet their Paris Agreement goals for reducing emissions, Earth has only a 5% chance of staying below 2 C warming this century, a 2017 study showed. But reductions about 80% more ambitious, or an average of 1.8% drop in emissions per year rather than 1% per year, would be enough to meet the agreement's stated goal, analysis shows. (2021-02-09)

High greenhouse gas emissions from Siberian Inland Waters
Rivers and lakes at high latitudes are considered to be major sources for greenhouse gas emissions to the atmosphere, but these losses are poorly constrained. In a study published in Nature Communications, UmeƄ University researchers and collaborators quantify carbon emissions from rivers and lakes across Western Siberia, finding that emission are high and exceed carbon export to the Arctic Ocean. (2021-02-09)

The pandemic lockdown leads to cleaner city air across Canada, Concordia paper reveals
Researchers at Concordia University found that emission levels dropped dramatically over the course of the pandemic. They measured downtown air quality monitoring station data from eight Canadian cities and compared their concentration levels of nitrogen dioxide, carbon monoxide and sulfur dioxide between February and August 2020 to the figures recorded over the same period in 2018 and 2019. They also used satellite imagery and urban transportation fuel consumption figures to investigate emissions traffic congestion data provided by tracking technology embedded in phones and cars worldwide. (2021-02-09)

Low carbon transport at sea: Ferries voyage optimization in the Adriatic
What CO2 savings are potentially attainable through path optimization? How much can ferries' carbon intensity be decreased? What is the role of waves and currents? A new study led by the CMCC Foundation shows how the future least-CO2 ferry routes could look like. (2021-02-09)

RUDN University ecologist suggested a way to reduce greenhouse gas emissions in animal farming
An ecologist from RUDN University suggested a method to evaluate and reduce the effect of animal farms on climate change and developed a set of measures for small farms that provides for the complete elimination of greenhouse gas emissions. (2021-02-09)

Coal and COVID-19: How the pandemic is accelerating the end of fossil power generation
COVID-19 has not only caused a temporary drop in global CO2 emissions, it has also reduced the share of power generated by burning coal - a trend that could in fact outlast the pandemic. This is the key result of a new study by a team of economists based in Potsdam and Berlin that looked at COVID-19's impact on the energy system and demand for electricity. (2021-02-08)

Ditching the car for walking or biking just one day a week cuts carbon footprint
Swapping the car for walking, cycling and e-biking even just one day a week makes a significant impact on personal carbon emissions in cities. (2021-02-08)

Man-made borders threaten wildlife as climate changes
Walls and fences designed to secure national borders could make it difficult for almost 700 mammal species to adapt to climate change, according to new research. (2021-02-08)

Cleaning Up the Mississippi River
Professor R. Eugene Turner reconstructed a 100-year record chronicling water quality trends in the lower Mississippi River by compiling water quality data collected from 1901 to 2019. The Mississippi River is the largest river in North America with about 30 million people living within its watershed. He tracked pH levels and concentrations of bacteria, oxygen, lead and sulphate in this new study. (2021-02-08)

New research reveals drivers of regionally different ozone responses to the COVID-19
Professor Ding Aijun explored global air-quality changes during COVID-19 lockdowns and regional disparities in O3 responses to emission reductions. They integrated multiple observational datasets, including global air quality monitoring network and satellite retrievals, to shed more light on the regional differences in interactions between emissions, atmospheric chemistry, and meteorological conditions. (2021-02-07)

Fingerprint for the formation of nitrous oxide emissions
Scientists led by Eliza Harris and Michael Bahn from the Institute of Ecology at the University of Innsbruck have succeeded in studying emissions of the greenhouse gas N2O under the influence of environmental impacts in an unprecedented level of detail. The study, which has now been published in Science Advances, is thus also a starting point for the creation of models that could predict future trends in the greenhouse gas emission dynamics of ecosystems under global climate change. (2021-02-05)

Arctic stew: Understanding how high-latitude lakes respond to and affect climate change
To arrive at Nunavut, turn left at the Dakotas and head north. You can't miss it--the vast tundra territory covers almost a million square miles of northern Canada. Relatively few people call this lake-scattered landscape home, but the region plays a crucial role in understanding global climate change. (2021-02-05)

Global warming found to be culprit for flood risk in Peruvian Andes, other glacial lakes
Human-caused warming is responsible for increasing the risk of a glacial outburst flood from Peru's Lake Palcacocha, threatening the city below. This study is the first to directly link climate change with the risk of flooding from glacial lakes, which are growing in number and size worldwide. (2021-02-04)

Huge methane emission rise follows extreme rainfall in East Africa
Recent heavy rainfall in East Africa has led to substantially larger seasonal emissions of a potent greenhouse gas, new research shows. (2021-02-03)

Study indicates US cities underestimate their GHG emissions by nearly 20%
Professor Kevin Gurney of Northern Arizona University's School of Informatics, Computing, and Cyber Systems and colleagues have compared the self-reported emissions inventories published by 48 major US cities to estimates from a state-of-the-art emissions information system. As described in Nature Communications, Gurney and his research collaborators found large differences and a systematic under-reporting of urban emissions by cities. (2021-02-02)

NREL reports sustainability benchmarks for plastics recycling and redesign
Researchers developing renewable plastics and exploring new processes for plastics upcycling and recycling technologies will now be able to easily baseline their efforts to current manufacturing practices to understand if their efforts will save energy and reduce greenhouse gas emissions. Benchmark data calculated and compiled at the National Renewable Energy Laboratory (NREL) provide a measurement -- at the supply chain level -- of how much energy is required and the amount of greenhouse gases emitted from the production of a variety of plastics in the United States. (2021-02-02)

COVID-19 lockdowns temporarily raised global temperatures
The lockdowns and reduced societal activity related to the COVID-19 pandemic affected emissions of pollutants in ways that slightly warmed the planet for several months last year, according to new research led by NCAR. The counterintuitive finding highlights the influence of airborne particles, or aerosols, that block incoming sunlight. (2021-02-02)

Land-use to solve climate change: a focus on livestock
The land sector can strongly contribute to climate change mitigation if sustainable land-use options are applied. A study led by the CMCC Foundation highlights that land-based mitigation options at small-scale landscape level can lead towards carbon neutral livestock systems while providing an additional wide range of ecological, environmental and socio-economic co-benefits at local level. (2021-02-01)

Virtual conference CO2 emissions quantified in new study
The virtual conferencing that has replaced large, in-person gatherings in the age of COVID-19 represents a drastic reduction in carbon emissions, but those online meetings still come with their own environmental costs, new research from the University of Michigan shows. (2021-02-01)

Human activity caused the long-term growth of greenhouse gas methane
Decadal growth rate of methane in the atmosphere varied dramatically over the past 30 yeas with three distinct periods of slowed (1988-1998), quasi-stationary (1999-2006) and renewed (2007-2016) phases. An inverse analysis with atmospheric chemistry transport modeling explained these variations consistently. While emissions from oil and gas exploitation and natural climate events caused the slowed growth and the temporary pause, those from coal mining in China and livestock farming in the tropics drove the renewed growth. (2021-01-29)

Methane emissions from coal mines are higher than previously thought
Methane emissions from coal mines are likely higher than previously calculated, because of emissions from abandoned mines and higher content in deep coal seams. (2021-01-29)

Lasing mechanism found in water droplets
As reported in Advanced Photonics, Chen's NTU team recently discovered that when a water droplet interacts with a surface to form a contact angle, the interfacial molecular forces determine the geometry of a droplet resonator. Dramatic mechanical changes at the interface play a significant role in the optical oscillation of droplet resonators. (2021-01-28)

Otago study examines attitudes toward climate change risk
A University of Otago study explored factors which influence Americans' levels of concern over climate change, providing discussion on how those factors could impact mitigation efforts. (2021-01-28)

More than just CO2: It's time to tackle short-lived climate-forcing pollutants
Climate change mitigation is about more than just CO2. So-called 'short-lived climate-forcing pollutants' such as soot, methane, and tropospheric ozone all have harmful effects. Climate policy should be guided by a clearer understanding of their differentiated impacts. (2021-01-27)

Up-trending farming and landscape disruptions threaten Paris climate agreement goals
UC Irvine Earth system science researchers conducted an analysis of greenhouse gas emissions from agriculture and land use since 1961, finding some opportunities for mitigation as well as areas where curtailment will require sacrifices. (2021-01-27)

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