Ocean's 'twilight zone' may be a key to understanding climate change
... major study sheds new light on the role of carbon dioxide once it's transported to the oceans' depths. The research indicates that instead of sinking, carbon dioxide is often consumed by animals and bacteria and recycled in the "twilight zone," a dimly lit area 100 ...Volcanic eruptions, ancient global warming linked
...lease of large amounts of greenhouse gases carbon dioxide and methane into the atmosphere, and definitively...e that massive release of greenhouse gases carbon dioxide and methane from the "out-gassing" of the lava flows and heating of organic-rich sediments in basin...Florida Tech explores microalgae for biofuel
...s salinity, nutrient concentrations, pH and carbon dioxide to test optimum conditions for growth. "Alternative energy is desperately needed for sustaining the economy, national security and to respond to environmental concerns. Microalgae cultivation is an attractive alternative and the warm Florida climate ...Satellites play vital role in understanding the carbon cycle
...act that human activities are pumping extra carbon dioxide into the atmosphere, by fossil fuel burning and de...is well known. Because of this, atmospheric carbon dioxide concentrations are higher today than they have been over the last half-million years or so. Scientis...2007 Communicator Award goes to glaciologists from Bremerhaven
...wo main greenhouse gases in the atmosphere, carbon dioxide and methane. The team has also been involved in deep core drilling projects in Greenland, by the German Climate Research Programme (DEKLIM) and the Klima in historischer Zeit (The Climate in Historical Time) programme, which aims to reconstruct the c...3.2 billion-year-old surprise: Earth had strong magnetic field
...ated the ideal crystals, Tarduno employed a carbon dioxide laser to heat individual crystals much more quickly than older methods, further lessening the chance of contamination. With the Universitys ultra-sensitive SQUID he could measure how much magnetism these individual particles contained. The data sugge...The global carbon budget -- proper accounting means paying attention to inland waters
...nutrient cycling, and productivity. Because carbon dioxide is a greenhouse gas, with the ability to influence temperature, an accurate global carbon budget is needed to address climate change. On Earth, carbon is continually cycling through terrestrial systems, inland waters, the ocean, and the atmosphere...Titanium dioxide -- It slices, it dices ...
...al Chemistry,* uses ultraviolet light and titanium dioxide and could be ideal for new microfluidic lab-on-a-c...semiconductor material, titanium dioxide. Titanium dioxide is a photocatalystwhen exposed to ultraviolet light its surface becomes highly oxidizing, converting...... is ultimately used to transform low-energy carbon dioxide from the air into high-energy compounds like glucose and starch. With chloroplasts being a plant's basic lifeline, it is crucial for a cell to be informed about their functional state. In earlier work, Chory's lab discovered that one important func...Engineering the heart piece by piece
... conditions such as temperature, oxygen and carbon dioxide levels, nutrients and pH level. This can then encourage the cells to begin producing the kinds of molecules needed to signal to and connect with other cells, and to produce the extracellular matrix that supports cells in tissue. The U-M Artificial...ACS News Service Weekly PressPac -- March 21, 2007
...new health risks High concentrations of nitrogen dioxide gas inhaled for even very brief periods following...ic exposure to low and moderate levels of nitrogen dioxide could damage the lungs. However, there was no clear information on the health risks of brief, high-l...Battlefield and terrorist explosions pose new health risks
CHICAGO, March 26 High concentrations of nitrogen dioxide gas inhaled for even very brief periods following...ic exposure to low and moderate levels of nitrogen dioxide could damage the lungs. However, there was no clear information on the health risks of brief, high-l...Test finds manufactured nanoparticles don't harm soil ecology
...reaking down organic material and producing carbon dioxide and other compounds. Results of the study are publ... bacterial community in the soil samples. Carbon dioxide levels in the soil, or soil respiration, the soil microbes' response to added nutrients, and enzyme ...Winner of Tyler Environmental Prize announced
... methane captured for reuse, the savings in carbon dioxide emissions would amount to taking 200,000 to 400,000 cars off the road, according to van Lier. Lettinga said that anaerobic treatment "is becoming the method of choice for the treatment of practically any type of wastewater. We foresee that in due ...Progress toward artificial photosynthesis?
...rman . Plants can do it: they simply grab carbon dioxide out of the air and covert it into biomass. In this process, known as photosynthesis, the plants use light as their energy source. Chemists would also like to be able to use CO2 as a carbon source for their synthetic reactions, but it doesnt work just...Smithsonian scientists report new carbon dioxide study
...hich doubling the atmosphericgreenhouse gas carbon dioxide (CO2) in a scrub oak ecosystem caused areduction in carbon storage in the soil. The scientists said these findings add a new perspective on the capacityof Earth's soils to store carbon, and a measure of caution suggestingthat elevated CO2, by alteri...Regardless of global warming, rising CO2 levels threaten marine life
...acidity is rising as sea water absorbs more carbon dioxide released into the atmosphere from power plants and..." In previous studies, increasing levels of carbon dioxide in the atmosphere led to a reduction in ocean pH and carbonate ions, both of which damage marine eco......y to rebound from the increase in inorganic carbon dioxide in the atmosphere and oceans. Dr. Frank Millero,...tudy, has compiled a complete review of the carbon dioxide system ranging from the potential outcomes of the increase in dissolved inorganic carbon dioxide in ...Scientists uncover link between ocean's chemical processes and microscopic floating plants
... that increased levels of ocean acidity and carbon dioxide concentrations have resulted in unexpected changes...ment. The researchers simulated present-day carbon dioxide concentrations and ocean acidity, and carbon dioxide levels expected at the end of this century and ...