NOTICIAS RECIENTES SOBRE CALIDAD DEL AIRE

Carbon-loving materials designed to reduce industrial emissions

Researchers are advancing gas membrane materials to expand practical technology options for reducing industrial carbon emissions.

02.Jul.2020


Arctic plants may not provide predicted carbon sequestration potential

The environmental benefits of taller, shrubbier tundra plants in the Arctic may be overstated, according to new research.

02.Jul.2020


In the Arctic, spring snowmelt triggers fresh CO2 production

Studies have shown the Arctic is warming roughly twice as fast as the rest of the world, and its soil holds twice the amount of carbon dioxide as the atmosphere. New research finds that water from spring snowmelt infiltrates the soil and triggers fresh carbon dioxide production at higher rates than previously assumed.

02.Jul.2020


Scientists shed new light on how seabirds cruise through air and water

New insight on how four species of seabirds have developed the ability to cruise through both air and water has just been published.

30.Jun.2020


Extreme warming of the South Pole

The South Pole has been warming at more than three times the global average over the past 30 years, according to recent research.

30.Jun.2020


Size matters for bioenergy with carbon capture and storage

New research has shown that Drax power station in North Yorkshire is the optimal site for the carbon capture and storage facilities that will be needed reduce carbon emissions and achieve the targets of 2016 Paris Climate Agreement.

29.Jun.2020


Global ripple effect of shifting monsoons

Scientists ran a series of simulations to produce the most elaborate set of projections to date that illustrates possible changes in nine monsoon regions across five continents.

29.Jun.2020


Air pollution's connection to infant mortality

The study of sub-Saharan Africa finds that a relatively small increase in airborne particles significantly increase infant mortality rates. A cost-effective solution may lie in an exotic-sounding proposal.

29.Jun.2020


Global warming will cause ecosystems to produce more methane than first predicted

New research suggests that as the Earth warms natural ecosystems such as freshwaters will release more methane than expected from predictions based on temperature increases alone.

29.Jun.2020


Atmospheric processes likely caused puzzling haze over China during COVID-19 shutdown

New research indicates that significant enhancement of secondary aerosol formed in the atmosphere via gas-to-particle conversion, together with long-lasting regional transport, may be the cause of severe haze over China despite a dramatic reduction in emissions during the COVID-19 shutdown.

29.Jun.2020


Satellite analyzes Saharan dust aerosol blanket

Dust storms from Africa's Saharan Desert traveling across the Atlantic Ocean are nothing new, but the current dust storm has been quite expansive and NASA satellites have provided a look at the massive June plume. NASA-NOAA's Suomi NPP satellite showed the blanket of dust had moved over the Gulf of Mexico and extended into Central America and over part of the eastern Pacific Ocean.

27.Jun.2020


Ancient Maya reservoirs contained toxic pollution

Reservoirs in the heart of an ancient Maya city were so polluted with mercury and algae that the water likely was undrinkable. Researchers found toxic levels of pollution in two central reservoirs in Tikal, an ancient Maya city that dates back to the third century B.C. in what is now northern Guatemala. New findings suggest droughts in the ninth century likely contributed to the depopulation and eventual abandonment of the city.

26.Jun.2020


More evidence of causal link between air pollution and early death

Strengthening U.S. air quality standards for fine particulate pollution to be in compliance with current World Health Association (WHO) guidelines could save more than 140,000 lives over the course of a decade, according to a new study.

26.Jun.2020


New process could safeguard water quality, environment and health

Researchers have developed a new way to quickly find and remove wastewater pollutants, which can reduce their impact on the environment.

26.Jun.2020


Traffic density, wind and air stratification influence concentrations of air pollutant NO2

Traffic density is the most important factor for much the air pollutant nitrogen dioxide (NO2). However, weather also has an influence, according to a new study, which evaluated the influence of weather conditions on nitrogen dioxide concentrations in Saxony 2015 to 2018. It was shown that wind speed and the height of the lowest air layer are the most important factors that determine how much pollutants can accumulate locally.

26.Jun.2020


Measuring air pollution could help London transport planners fight COVID-19

Measuring air quality across London could help fight COVID-19 by providing a rapid means of deciding whether to reduce public transport movement -- given strong links between exposure to air pollution and COVID-19 transmission, a new study reveals.

26.Jun.2020


Airborne chemicals could become less hazardous, thanks to a missing math formula

Researchers have figured out a way to calculate surface viscosity just by looking at a stretched droplet as it starts to break.

25.Jun.2020


Global pollution estimates reveal surprises, opportunity

Using recent satellite observations, ground monitoring and computational modeling, researchers have released a survey of global pollution rates. There are a couple of surprises, for worse, but also, for better.

25.Jun.2020


Wildfire smoke has immediate harmful health effects

Exposure to wildfire smoke affects the body's respiratory and cardiovascular systems almost immediately, according to new research.

24.Jun.2020


Air pollution major risk for cardiovascular disease regardless of country income

From low-income countries to high-income countries, long-term exposure to fine particulate outdoor air pollution is a major contributor to cardiovascular disease and death, a new study found. But even small reductions in air pollution levels can result in a reduction of disease risk.

23.Jun.2020


Decline in green energy spending might offset COVID-era emissions benefits

Researchers have documented short-term environmental benefits during the COVID-19-related lockdown, but that silver lining could be far outweighed by a long-term decline on clean energy investments, a new study finds.

22.Jun.2020


Fluorocarbon bonds are no match for light-powered nanocatalyst

Engineers have created a light-powered catalyst that can break the strong chemical bonds in fluorocarbons, a group of synthetic materials that includes persistent environmental pollutants.

22.Jun.2020


Artificial night sky poses serious threat to coastal species

A study shows the presence of artificial light originating from cities several kilometers away (also known as artificial skyglow) disrupts the lunar compass species use when covering long distances.

22.Jun.2020


How a historic drought led to higher power costs and emissions

Researchers studied the impact of a historic drought in California on economic and environmental impacts for electric power systems.

20.Jun.2020


Human activity on rivers outpaces, compounds effects of climate change

The livelihoods of millions of people living along the world's biggest river systems are under threat by a range of stressors caused by the daily economic, societal and political activity of humans -- in addition to the long-term effects of climate change, researchers report.

19.Jun.2020


Wind farms on the Black Sea coast could endanger bat populations in Eastern Europe

The Via Pontica, an important migration route for birds in Eastern Europe, runs along the Black Sea coast of Romania and Bulgaria. Bats also use this route. In this region, numerous wind farms have been installed in recent years because of good wind conditions. A research team has now demonstrated that this leads to high death rates of migrating bats and potentially large declines even in populations living in other countries.

17.Jun.2020


Women commuting during rush hour are exposed to higher levels of pollutants

Studies have shown associations between exposure to traffic-related air pollution and adverse health outcomes, including preterm birth and low birthweight. A new study finds higher exposure to pollutants among women during personal vehicle trips versus time not in the car, and these differences were greater for trips taken during rush hour.

17.Jun.2020


Air quality impacts early brain development

Does living close to roadways pose a risk to the developing brain? A study found a link between traffic-related air pollution and an increased risk for changes in brain development relevant to neurodevelopmental disorders.

17.Jun.2020


Why the Mediterranean is a climate change hotspot

A new analysis uncovers the basis of the severe rainfall declines predicted by many models.

17.Jun.2020


Antarctic sea ice loss explained in new study

Scientists have discovered that the summer sea ice in the Weddell Sea sector of Antarctica has decreased by one million square kilometers -- an area twice the size of Spain -- in the last five years, with implications for the marine ecosystem.

17.Jun.2020


Uncovering hidden flow patterns in coastal waters likely leads to faster disaster response

With more accurate modeling data, response teams can better predict the search area grid from the air, and reduce emergency response time when lives are on the line.

17.Jun.2020


How the giant sequoia tree protects itself

A three-dimensional network of fibers makes the bark resistant to fire and rock fall.

17.Jun.2020


Using sunlight to save satellites from a fate of 'space junk'

Satellites are almost always illuminated by the sun, apart from short transitions to Earth's shadow. The light that a satellite reflects can help reveal the solution to a structural malfunction.

17.Jun.2020


Crop residue decisions affect soil life

New findings share how prescribed fire and no-till management impact soil microbes.

17.Jun.2020


Half of the world's population exposed to increasing air pollution

Half of the world's population is exposed to increasing air pollution, new research has shown.

17.Jun.2020


Switching from general to regional anaesthesia may cut greenhouse gas emissions

Switching from general to regional anaesthesia may help cut greenhouse emissions and ultimately help reduce global warming, indicates a real life example at one US hospital over the course of a year.

16.Jun.2020


New species extinction target proposed for global nature rescue plan

A scientist proposes a prominent political target to give discussions of species conservation more vigor. Together with a group of experts from other research institutions, he proposes to limit species extinctions to 20 per year.

16.Jun.2020


A carbon sink shrinks in the Arctic

Ice melts in the Arctic Ocean were thought to be drawing large amounts of carbon dioxide out of the atmosphere, acting as a carbon sink and helping to mitigate greenhouse gases. But new research shows that may not be the case in all areas, particularly in the Canada Basin, where the carbon sink is shrinking, inhibiting the ocean's ability to absorb carbon dioxide from the atmosphere into the deep ocean and store it there.

15.Jun.2020


Carbon emission from permafrost soils underestimated by 14%

Picture 500 million cars stacked in rows. That's how much carbon -- about 1,000 petagrams, or one billion metric tons - -is locked away in Arctic permafrost.

15.Jun.2020


Exposure to air pollution impairs cellular energy metabolism

Exposure to air particulate matter impairs the metabolism of olfactory mucosal cells, according to a recent study. The results can contribute to a better understanding of how air pollutants may harm brain health, as the olfactory mucosa can act as a key pathway to the brain.

15.Jun.2020


Protecting bays from ocean acidification

As oceans absorb more human-made carbon dioxide from the air, a process of ocean acidification occurs that can have a negative impact on marine life. But coastal waterways, such as Chesapeake Bay, can also suffer from low oxygen and acidification. New research identifies one way to protect these waterways -- the presence of submerged aquatic vegetation (SAV).

12.Jun.2020


Radioactive cloud over Europe had civilian background

A mysterious cloud containing radioactive ruthenium-106, which moved across Europe in 2017, is still bothering Europe's radiation protection entities. German researchers now found out that the cloud did not originate from military sources but rather from civilian nuclear activities.

12.Jun.2020


New efficient ships won't be enough to curb shipping sector's environmental damage

New climate research has stated that urgent action on emissions from existing ships is the key to tackling shipping's impact on climate change.

11.Jun.2020


Half the earth relatively intact from global human influence

If we act quickly and decisively, there is a slim window in which we can still conserve roughly half of Earth's land in a relatively intact state, a new study suggests.

11.Jun.2020


Engineers find neat way to turn waste carbon dioxide into useful material

Making catalysts to convert waste carbon dioxide into useful industrial products has been expensive and complicated -- until now. Engineers show it's as easy as playing with Lego.

10.Jun.2020


Considering health when switching to cleaner electricity

Power plants that burn coal and other fossil fuels emit not only planet-warming carbon dioxide, but also pollutants linked to breathing problems and premature death. Policies proposed to mitigate climate change, however, often fail to fully account for the health benefit of switching to cleaner technologies. Researchers show that emphasizing health concerns in such policies can alter the optimal locations of these upgrades.

10.Jun.2020


Volcanic activity and changes in Earth's mantle were key to rise of atmospheric oxygen

Evidence from rocks billions of years old suggest that volcanoes played a key role in the rise of oxygen in the atmosphere of the early Earth.

09.Jun.2020


Water vapor in the atmosphere may be prime renewable energy source

A new study finds that water vapor in the atmosphere may serve as a potential renewable energy source in the future.

09.Jun.2020


Entire Roman city revealed without any digging

For the first time, archaeologists have succeeded in mapping a complete Roman city, Falerii Novi in Italy, using advanced ground penetrating radar (GPR), allowing them to reveal astonishing details while it remains deep underground. The technology could revolutionize our understanding of ancient settlements.

08.Jun.2020


Researchers advance fuel cell technology

Researchers have made a key advance in solid oxide fuel cells (SOFCs) that could make the highly energy-efficient and low-polluting technology a more viable alternative to gasoline combustion engines for powering cars.

08.Jun.2020