News articles tagged with 'dioxide'
Nanoparticles used in common household items caused genetic damage in mice
— 17 Nov 2009 15:34 | HealthTitanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study... — full story
Volatile gas could turn Rwandan lake into a freshwater time bomb
— 17 Nov 2009 15:19 | EnvironmentA dangerous level of carbon dioxide and methane gas haunts Lake Kivu, the freshwater lake system bordering Rwanda and the Republic of Congo... — full story
Health care accounts for 8 percent of US carbon footprint
— 11 Nov 2009 12:18 | HealthThe American health care sector accounts for nearly a tenth of the country's carbon dioxide emissions, according to a first-of-its-kind calculation of health care's carbon footprint... — full story
How size matters for catalysts
— 6 Nov 2009 12:40 | ChemistryUniversity of Utah chemists demonstrated the first conclusive link between the size of catalyst particles on a solid surface, their electronic properties and their ability to speed... — full story
UC Davis researchers identify dominant chemical that attracts mosquitoes to humans
— 28 Oct 2009 13:10 | HealthScientists at the University of California, Davis, have identified the dominant odour naturally produced in humans and birds that attracts the blood-feeding Culex mosquitoes, which... — full story
Treaty to limit CO2 should be followed by similar limits on other greenhouse pollutants
— 26 Oct 2009 16:38 | EnvironmentWhen world leaders meet in Copenhagen in December to hash out a treaty limiting carbon dioxide emissions, they should begin planning a future summit to address other pollutants - from... — full story
Accounting error in climate treaties could lead to more deforestation
— 26 Oct 2009 15:46 | EnvironmentA team of 13 prominent scientists and land-use experts has identified an important but fixable error in legal accounting rules for bioenergy that could, if uncorrected, undermine efforts... — full story
Arctic now traps 25 percent of world's carbon - but that could change
— 16 Oct 2009 09:25 | EnvironmentThe arctic could potentially alter the Earth's climate by becoming a possible source of global atmospheric carbon dioxide. The arctic now traps or absorbs up to 25 percent of this gas... — full story
Improving China's acid rain control strategy
— 15 Oct 2009 09:18 | EnvironmentScientists are reporting the first evidence that China's sharp focus on reducing widespread damage to soil by acid rain by restricting sulphur dioxide air pollution may have an unexpected... — full story
Last time carbon dioxide levels were this high: 15 million years ago
— 9 Oct 2009 11:57 | EnvironmentYou would have to go back at least 15 million years to find carbon dioxide levels on Earth as high as they are today, a UCLA scientist and colleagues report 8 October in the online... — full story