Biocontrol of invasive water hyacinth contributes to socioeconomic and health improvements in Africa
...er enters the tunnels and causes the plant mats to sink as the plants deteriorate further. Wind and wave action can accelerate the destruction of the weed started by the insects. No herbicide spraying was used in the Ugandan program, only mechanical removal and biocontrol, yet by 2000, 90% of the weed w...Global warming is evaporating Arctic ponds, new study shows
...ces of shifting wetlands such as these from carbon sink to potential carbon sources are frightening, they say. Ponds, the dominant source of surface waters in many Arctic regions, are hot spots of biodiversity, as well as habitat for many birds, insects, and other organisms, the researchers point out. ...Scientists close in on missing carbon sink
...ct tropical ecosystems are a more important carbon sink than previously thought. The models had generally indicated that tropical ecosystems were a net source of 1.8 billion tons of carbon, largely because trees and other plants release carbon into the atmosphere as a result of widespread logging, burning...Northern forests less effective than tropical forests in reducing global warming
...ct tropical ecosystems are a more important carbon sink than previously thought. The models had generally indicated that tropical ecosystems were a net source of 1.8 billion tons of carbon, largely because trees and other plants release carbon into the atmosphere as a result of widespread logging, burning...Marine phytoplankton changes form to protect itself from different predators
...le, the carbon becomes part of fecal packages that sink into the deep ocean where a portion of that carbon is sequestered thereby reducing atmospheric carbon dioxide, a leading greenhouse gas. If consumed by smaller creatures like ciliates, less of the carbon sinks to the deep sea and more remains in th...Discovery in orange cauliflower may lead to more nutritious crops
...oes, altering genes to increase both the metabolic sink and beta-carotene synthesis. Orange cauliflower was first discovered in a farmer's white cauliflower field in Canada about 30 years ago and is now available at supermarkets....Climate policy: It's good to be in the 'RED'
... The efficiency of the tropical forest as a carbon sink might in fact diminish over time, but the authors expect that it will not disappear completely. The political challenges to reducing deforestation in the tropical developing world are varied and complex. Traditionally, many countries have viewed th...'Short-circuit' found in ocean circulation
...cess in the Southern Ocean allows cold waters that sink to the abyss to return to the surface more rapidly than previously thought. This affects the Southern Ocean circulation, which links all the other oceans, and is also relevant to uptake and release of carbon dioxide by the sea transport between t...Ocean's 'twilight zone' may be a key to understanding climate change
.... The problem, say scientists, is that particles sink slowly, perhaps 10 to a few hundred meters per day, but they are swept sideways by ocean currents traveling many thousands of meters per day. To collect sinking particles, oceanographers use cones or tubes that hang beneath buoys or float up from sea...Biofuels: More than just ethanol
...le displaced fossil is the largest greenhouse gas sink followed by soil carbon sequestration. This research shows that farmers will have a variety of biofuel crop options available in the future and that these biofuel crop rotations will have different environmental impacts. Detailed studies of the en...Plastic that degrades in seawater could be boon for cruise industry and others
...are denser than saltwater, they have a tendency to sink instead of float, Storey says. That feature also could prevent them from washing up on shore and polluting beaches, he notes. The plastics are undergoing degradation testing at the U.S. Army Natick Soldier Research, Development, and Engineering Cen...Microfossils unravel climate history of tropical Africa
...tant physiological properties. When such molecules sink to the sea floor and are buried in sediments where oxygen does not penetrate, they can be preserved for thousands of years. The ratios between the different molecules from the algal cell membrane can be used to approximate the past temperature of the...Smithsonian scientists report new carbon dioxide study
...munities, may turn the soilfrom a potential carbon sink into a carbon source. This could offsetsome of the...stable terrestrial carbon pool,also may serve as a sink for excess carbon. During the course of their study, Smithsonian scientists foundthat the amo...Leicester researcher to lead global team tackling carbon 'time-bomb'
...ical peatland is a vast, globally-important carbon sink which locks away the greenhouse gas CO2. But once the carbon allocation to the system is discontinued by forest removal and the peat is drained, the surface peat oxidises and loses stored carbon rapidly to the atmosphere. This results in progressive...Physicists reveal water's secrets in journal Science
..., whereas the solid state of other compounds would sink in their liquids." Among its many properties, water also can absorb large amounts of heat before it begins to get hot, and it releases heat slowly during cooling. Otherwise, pools of water, from puddles to oceans, might boil during the day or freez...Exploring polar regions, understanding climate
...es and reindeer herds belonging to nomadic people, sink into mud. However, new sea routes that up till now have been blocked by ice are also opening up. The International Polar Year 2007/08 comes at a time when discussion over climate change is both topical in the media, and at the forefront of peoples ...Yale biologists 'trick' viruses into extinction
...use they lack a nucleus and could be engineered as sink habitats that greatly outnumber the T-cell source habitats in the body." ...Cold storage solution for global warming?
...ard, while carbon dioxide hydrates are a potential sink for greenhouse gas emissions. This work also has application in other fields such as space research into hydrates on other planetary bodies." ...Wanderlust -- deep-sea fauna under Antarctic ice shelf
...to as grazers. Myriads of single-celled algae that sink down to the seafloor are literally grazed by herds of sea cucumbers. The oceanographer Enrique Isla is excited about further processing the collected data back in the Marine Sciences Institute (ICM) in Barcelona. "Our measurements of environmental pa...Resilient form of plant carbon gives new meaning to term 'older than dirt'
...low but progressively important atmospheric carbon sink on geologic time scales. It could even influence current predictions about carbon cycling and soil carbon storage in response to increasing amounts of carbon dioxide in the atmosphere, the co-authors conclude....