Tag: "fossil" at biology news
Cellulosic ethanol: Fuel of the future?
...reenhouse gases, not because we are running out of fossil
fuels, he added. ''There are reserves of coal for 200 years at least, and coal can be liquefied into fuel, but it produces an awful lot of CO2,'' he explained. Biofuels, on the other hand, are carbon-neutral sources of energy, Somerville said, noti...
Is biodiversity the future of farming?
...umerous animal species. Salatin's farm uses little fossil
fuel, yet the farm is highly productive. The 57-hectare farm annually produces 30,000 dozen eggs, 10,000 to 12,000 broilers, 100 beef animals, 250 hogs, 800 turkeys, and 600 rabbits. A study by George Boody and colleagues has calculated, on a wate...
Nottingham scientist fights climate change
...ing. Greenhouse gases, generated by the burning of fossil
fuels and other human activities, are so-called because they trap more of the Suns heat leading to the temperature increases associated with climate change. Martin Rees, President of the Royal Society, said: "Tackling global warming is not only a ...
Little creatures, big blooms
...llates form the basis of the food chain, and their fossil
record has been found in sediments as far back as ...e so sensitive to environmental change, looking at fossil
dinoflagellates in the San Francisco area and other coastal areas provides a valuable baseline for p...
Pitt professor contends biological underpinnings
.... Among other scientific observations, gaps in the fossil
record could bolster Schwartz's theory because, for Schwartz, there is no "missing link." In an examination that further challenges the Darwinian model, Schwartz and cowriter Bruno Maresca, a professor of biochemistry at the University of Salerno,...
Shedding new light on proteorhodopsin
...icant boost for efforts to develop alternatives to fossil
fuel energy sources. Microbes that can simultaneously harvest energy from several different sources may be better at producing biofuels than microbes that can only utilize a single energy source. The results of this study appear in a paper publish...
Climate change only one symptom of a stressed planet Earth
...ury further than the changes that will result from fossil
fuel emissions alone. Kenneth Denman, IPCC WGI Chapter 7 Coordinating Lead Author (Senior Scientist, Canadian Centre for Climate Modelling and Analysis, University of Victoria): The IPCC climate models have started down the road towards becoming Ea...
Energy institute will put Illinois at forefront of farm bioenergy production
...breaking down plant material for use in biofuels), fossil
fuel bioprocessing (converting heavy hydrocarbons to cleaner fuels) and carbon sequestration (removing or preventing increases in atmospheric carbon), socio-economic systems (social and economic issues related to these new technologies) and biofuels ...
Something new under the sun
...ses the climate is often adjusted with the help of fossil
fuels: the heating in the greenhouse is switched on. Furthermore the greenhouse can be ventilated to decrease humidity and reduce the temperature. Thanks to modifications and Van Ooteghem's new control system less energy is lost and excess heat is re...
Does evolution select for faster evolvers?
...ion appear to increase with time. For example, the fossil
record indicates that single-celled life first appeared about 3.5 billion years ago, and it then took about 2.5 billion more years for multi-cellular life to evolve. That leaves just a billion years or so for the evolution of the diverse menagerie of...
How fish conquered the ocean
...gen, Norway. "To the contrary", Dr Finn says, "the fossil
record shows that the ancestors of the bony fishes...ace as evidenced by their sudden appearance in the fossil
records of marine sediments. The basis for this successful radiation is unexplained and has intrigue...
Paleontologists discover most primitive primate skeleton
... the primate family tree by comparing skeletal and fossil
specimens representing more than 85 modern and ext...n by Bloch and his team altered this idea. "These fossil
finds from Wyoming show that our earliest primate ancestors were the size of a mouse, ate fruit and ...
Study finds mercury prevalent in many western fish
...away as China, the burning of heavy oils and other fossil
fuels, and even forest fires. In the survey, the researchers did find 13 fish from eight different sites that had very high mercury concentrations levels of 1.0 microgram or higher likely indicating a point source. These high levels could be cause...
Aerosol pollution slows down winds and reduces rainfall
...tiveness compared to other energy sources, such as fossil
fuels. ''The more pollution, the greater the reduction of wind speed,'' Jacobson says. Aerosol particles may be responsible for the slowing down of winds worldwide. Wind supplies about 1 percent of global electric power, according to Jacobson. Slow...
Scientists map air pollution using corn grown in US fields
...n. 22, 2006 -- Scientists at UC Irvine have mapped fossil
fuel air pollution in the United States by analyzi...or and regulate the release of carbon dioxide from fossil
fuel sources to limit greenhouse gas warming," said James Randerson, associate professor of Earth sy...
Nitrogen study may improve ecological predictions
...ion releases more carbon each year than all of the fossil
fuel combustion produced by humans, the researchers note in their study. "If we hope to better predict carbon dynamics, climate change and other issues, we first must understand these basic ecological processes," Harmon said. In plant decomposition, ...
Toward more effective paleolgenetic analysis
... by modern DNA. An extensive study of around 250 fossil
bones from 600 to 50 000 year old herbivores was c...tochondrial DNA from freshly excavated, untreated fossil
bones was amplified with a success rate of 46%. However, the rate is a mere 18% for fossil
Paleontologists to discuss 'gap' fossils that link fish and land animals
...ircle, paleontologists discovered a remarkable new fossil
species that is the most compelling evidence yet o..., Va. They will talk about their finding, show the fossil
and discuss the evolutionary leap from fish to land animals and how their discovery bridges that gap...
40,000-year-old skull shows both modern human and Neandertal traits
...d chronologically intervening specimens. But this fossil
is a major addition to the growing body of fossil, genetic and archaeological evidence indicating significant levels of biological and cultural interaction between modern humans and the anatomically archaic populations (including the Neandertals) the...
Why are lions not as big as elephants?
...en shown to have higher rates of extinction in the fossil
record than smaller species even prior to the evolution of man. Carnivores at the upper limits of body mass would have been heavily reliant on abundant large prey to both minimize energy expenditure and maintain high rates of energy intake. Slight en...
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