Solar energy conversion offers a solution to help mitigate global warming
...eplace expensive silicon with inexpensive titanium dioxide and chemical dyes. Its artificial photosynthesis p...l components to convert sunlight, water and carbon dioxide directly into fuels like hydrogen, methane and ethanol. Its program on thermoelectric materials take...National Academies Advisory: March 5 lecture on ocean acidification
Most carbon dioxide emissions are absorbed by the ocean, where the gas reacts with seawater to form carbonic acid that can dissolve the shells and skeletons of marine organisms, including corals. At the eighth annual Roger Revelle Commemorative Lecture, Ken Caldeira fr...AGU Journal highlights -- February 23, 2007
...declined linearly with increasing levels of carbon dioxide in the air. Such creatures grow their shells by a ...(IPCC) predict that the partial pressure of carbon dioxide in the atmosphere could more than double by 2100, causing ocean acidity to increase. Because increa...AAAS panel will focus on the impact of livestock production on the planet
...estock sector accounts for 9 percent of all carbon dioxide emissions derived from human-related activities, as well as 37 percent of methane emissionsprimarily gas from the digestive system of cattle and other domesticated ruminantsand 65 percent of nitrous oxide gases, mostly from manure. The problems sur...Scientists will discuss creating a culture of sustainability February 19 at AAAS
...s and Japanhave generated 80 percent of the carbon dioxide contributing to rapid climate change," Schneider said. "Yet a ton of carbon emitted in Beijing does the same thing as a ton of carbon produced in Boston or Brussels. If we are to have a sustainable planet, everyone must be engaged in reducing emissio...Gene chips forecast ecological impacts of climate change
...the atmosphere and the role of the ocean in carbon dioxide sequestration, marine ecosystems will experience temperature changes combined with changes in ocean pH ocean acidification. As a consequence of the elevated levels of the greenhouse gas, carbon dioxide, the predictions for ocean acidification ar...Cellulosic ethanol: Fuel of the future?
...said, noting that plants absorb atmospheric carbon dioxide during photosynthesis, which compensates for the CO2 that is released when biofuels burn. Environmental costs Some environmentalists criticize the use of biofuels by arguing that planting large quantities of corn or grass to produce ethanol wil...Orbiter provides new hints of past groundwater flows on Mars
...subsurface fluids -- probably water, liquid carbon dioxide or a combination of the two -- once flowed abundantly in the western Candor Chasma region of Mars. Okubo will discuss the paper during a 15 February news briefing at the 2007 AAAS Annual Meeting in San Francisco. The briefing also will include spe...Nottingham scientist fights climate change
...ng work, which is developing ways of taking carbon dioxide (CO2) out of the atmosphere, could play a key role in future efforts to reduce global climate change. His research could also reduce the need to store highly pressurised CO2 underground. Carbon abatement technologies, including carbon capture, stor...Cold climate produced by algae contributed to onset of multicellular life
...the new theory, the coldness was due to low carbon dioxide concentration brought about by strong algal growth...ion. This in turn increased the atmospheric carbon dioxide level and ended the severe glaciations and the reign of unicellular algae, initiating the developmen...Grape expectations for healthier wine
...ge for months and are usually treated with sulphur dioxide to prevent decay. Although the sulphur dioxide is effective, it is corrosive and can cause severe allergic reactions in some people. Wine-makers ha...Cold storage solution for global warming?
...ered two centuries ago, the possible use of carbon dioxide hydrate as a means to help resolve problems of glo...eena Camps' PhD project have indicated that carbon dioxide hydrate should form stable structures in sediments under oceans. By employing geophysical technique...World's oldest rocks show how Earth may have dodged frozen fate of Mars
... supporting this theory. The study shows carbon dioxide in Earth's atmosphere could have sustained surface temperatures above freezing before 3.75 billion years ago according to the researchers, led by University of Chicago Assistant Professor Nicolas Dauphas. Co-authors on the study, which appeared onli...CESAR could hail cheaper and greener small aircraft
...ass would also mean less fuel burn and less carbon dioxide being pumped into the atmosphere. Dr Schofield, who works in the Power Conversion Group within The School of Electrical and Electronic Engineering, said: "With the increasing popularity of air travel, the demand for smaller commercial aircraft is l...Sea level on the rise -- in real and virtual worlds
...urnal Science today, the authors found that carbon dioxide concentration followed the modelled scenarios almo...s have underestimated it. Measurements of carbon dioxide through facilities such as the Australian Bureau of Meteorology's Cape Grim observatory in Tasmania ...Traveling in the right direction -- lessening our impact on the environment
...age climate change impact of 11.3 tonnes of carbon dioxide - twice the national average. This means they earn...roduce on average almost four times as much carbon dioxide emissions. The research, based on a survey of almost 500 people in Oxfordshire, found that air tra...Researchers find link between food odors and lifespan in fruit flies
...the flies' metabolic rates by analyzing the carbon dioxide they give off. At the cellular level, this metabo...the flies' metabolic rates by analyzing the carbon dioxide they give off. At the cellular level, this metabolic process is essentially the same in all organis......r gas bill. Factors such as temperature, carbon dioxide (CO2) concentration and relative humidity must be controlled as accurately as possible for optimum crop growth. Van Ooteghem designed an optimal control system for a solar greenhouse with an improved roof cover, heat regulation system and humidity re...Scientists map air pollution using corn grown in US fields
...ons nationwide. This novel way to measure carbon dioxide produced by burning coal, oil and natural gas will...es in the air. Tracking fossil-fuel-emitted carbon dioxide will be important as countries throughout the world adhere to the Kyoto Protocol, an agreement among...Rotting leaf litter study could lead to more accurate climate models
...tter decomposition rates, you are enhancing carbon dioxide release to the atmosphere. Our study provides algorithms to better predict the rates of these processes under a wide range of conditions." The researchers found that the rate of decomposition, not nitrogen release, was affected by the two key variab...