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Tag: "gases" at biology news

Chemical in many air fresheners may reduce lung function

...ts. VOCs are a diverse set of compounds emitted as gases from thousands of commonly used products, including tobacco smoke, pesticides, paints, and cleaning products. VOCs are also released through automotive exhaust. The researchers found that of the common VOCs analyzed, which included benzene, styrene, ...

Researchers develop flood-tolerant California rice

...is and respiration. Submerged, the plants lack the gases needed to produce sugar for cellular energy, resulting in death if submergence persists beyond four days. Bailey-Serres notes that access today to information about the rice genome ?all the genetic material in the chromosomes of rice ?has greatly ...

Tiny airborne particles are a major cause of climate change

... scale, an even greater impact than the greenhouse gases effect. Attempts to understand how these particles... bottom line, the warming effect of the greenhouse gases and the (mainly cooling) aerosol effect may balance each other out so that the net global climate ch...

Ammonia-loving archaea win landslide majority

...y. "Perhaps the measured amounts of greenhouse gases such as nitric oxide and nitrous oxide are not pro...ear, if and in what amounts the archaea form these gases as byproducts. This is only known from some of the respective bacteria," Schleper adds. ...

Tropical forest CO2 emissions tied to nutrient increases

... in the past century due to build-up of greenhouse gases in the atmosphere, primarily CO2. According to the academy, the warming process has intensified in the past 20 years has been accompanied by retreating glaciers, thinning arctic ice, rising sea levels and longer growing seasons in many regions. ...

Arctic coring expedition continues to yield new clues

...to the time the last massive amounts of greenhouse gases were released into the Earth's atmosphere ?a period calculated to have occurred 55 million years ago, and known as the Paleocene/Eocene thermal maximum, or PETM. Researchers have long recognized that a massive release of greenhouse gases, ...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...search, which focuses on measuring the movement of gases between the prairie and the atmosphere. Ham collects data via a mini-network of six meteorological towers on the Konza Prairie and the Rannells Flint Hills Prairie Preserve. The Konza towers are a component of the regional network, Ameriflux. Counte...

Stormy days ahead for coral reefs

...e effect of the increased production of greenhouse gases is an increase in the acidity of the ocean. This is likely to reduce the stability of coral reefs, and amplify the damage done by tropical storms in coming decades. Moreover, other effects of global warming and human activity could impair reef...

Far more than a meteor killed dinos

...the nudging by releasing vast amount of greenhouse gases into the atmosphere over a period of more than a million years leading up tothe mass extinction. By the time Chicxulub struck, the oceans were already 3-4 degrees warmer, even at the bottom, she says. "On land it must have been 7-8 degrees warmer,"...

'Fruit fly dating game' provides clues to our reproductive prowess

...the nudging by releasing vast amount of greenhouse gases into the atmosphere over a period of more than a million years leading up tothe mass extinction. By the time Chicxulub struck, the oceans were already 3-4 degrees warmer, even at the bottom, she says. "On land it must have been 7-8 degrees warmer,"...

NASA study: Alaskan fires affected Houston air quality in 2004

... field research project sampled a variety of trace gases and aerosols ?tiny particles suspended in the air ... Understanding the transport and transformation of gases and aerosols over long distances is needed for improved understanding and air-quality forecasting. ...

Coral reefs are increasingly vulnerable to angry oceans

...e effect of the increased production of greenhouse gases is an increase in the acidity of the ocean. This is likely to reduce the stability of coral reefs, and amplify the damage done by tropical storms in coming decades. Other effects of global warming could limit the capacity of the reefs to bounce bac...

Researchers link ocean organisms with increased cloud cover and potential climate change

...ds can dramatically alter the impact of greenhouse gases on our changing climate. "It shows that there ...he amounts of this and other potentially important gases emitted from the ocean, and to better characterize the effort of organics on cloud droplet formation...

Sequencing of the oyster mushroom genome

... cycle ?carbon dioxide being one of the principal gases of the greenhouse effect ?and holds great potential for use in bioremediation –biodegradation of contaminants ? reasons why, together with other crops such as the yucca or cotton, it has been chosen for genome sequencing by the mentioned North Americ...

U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen

...rns oil straight into hydrogen and carbon monoxide gases by heating it to about 1,000 degrees C. About 70 percent of the hydrogen in the oil is converted to hydrogen gas. Similarly, using a nearly saturated solution of glucose in water, the process heats the sugar so fast that it, too, breaks up into synga...

Breathing easy: When it comes to oxygen, a bug's life is full of it

...many, will talk on “Spiracular control of tracheal gases in insects.?Hetz and his colleagues, noting that some insects close their spiracles during rest, have concluded that the insects?respiratory system is designed to deliver large amounts of oxygen while they are active. The drawback is that, when they ...

Volcanic eruptions, ancient global warming linked

...onse to the release of large amounts of greenhouse gases ?carbon dioxide and methane ?into the atmosphere, ...tists speculate that massive release of greenhouse gases ?carbon dioxide and methane ?from the "out-gassing" of the lava flows and heating of organic-rich se...

Biodiesel won't drive down global warming

...entially result in greater emissions of greenhouse gases than from conventional petroleum derived diesel. T...RI Consulting compared the emissions of greenhouse gases by the two fuels across their overall life cycles from production to combustion in cars. The res...

Ethanol vehicles pose a significant risk to human health, study finds

...produce virtually no toxic emissions or greenhouse gases and cause very little disruption to the land-unlike ethanol made from corn or switchgrass, which will require millions of acres of farmland to mass-produce. It would seem prudent, therefore, to address climate, health and energy with technologies tha...

Global 'sunscreen' has likely thinned, report NASA scientists

...balance to the warming of our planet by greenhouse gases ?sunlight blocked by dust, pollution and other aer...rom GISS, showed that due to increasing greenhouse gases and aerosols, the planet warmed at the same time that direct solar radiation reaching the surface de...

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