Woods Hole Oceanographic Institution (WHOI) scientists have discovered that bacterial communication could have a significant impact on the planet’s climate.
In the ocean, bacteria coalesce on tiny particles of carbon-rich detritus sinking through the depths. WHOI marine biogeochemists Laura Hmelo, Benjamin Van Mooy, and Tracy Mincer found that these bacteria send out chemical signals to discern if other bacteria are in the neighborhood. If enough of their cohorts are nearby, then bacteria en masse commence secreting enzymes that break up the carbon-containing molecules within the particles into more digestible bits. It has been suggested that coordinated expression of enzymes is very advantageous for bacteria on sinking particles, and Hmelo and her colleagues have uncovered the first proof of this in the ocean. (more…)
*Former prime minister’s speech honours Alan Gotlieb, former ambassador to U.S.*
Former prime minister Brian Mulroney, the man entrepreneur Peter Munk described as “one of our greatest statesmen,” attributed much of his success – and Canada’s under his leadership – to the personal relationships he and his ambassador cultivated with leaders south of the border.
Mulroney spoke at a University of Toronto conference, Diplomacy in the Digital Age, Oct. 13, an event held in honour of Alan Gotlieb, the former ambassador to the United States who served three prime ministers. (more…)
AUSTIN, Texas — An international team of scientists that includes two University of Texas at Austin researchers has found that Ecuador’s Yasuní National Park, which sits on top of massive reserves of oil, is in the single most biodiverse region in the Western Hemisphere.
The announcement is part of a final push for the Yasuní-ITT Initiative at the United Nations General Assembly. The initiative proposes that Ecuador receive compensation for half of the revenues the nation would lose by protecting the estimated 846 million barrels of oil that lie beneath the forest. (more…)
PASADENA, Calif. – A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere.
The study, published online Sunday, Oct. 2, in the journal Nature, finds the amount of ozone destroyed in the Arctic in 2011 was comparable to that seen in some years in the Antarctic, where an ozone “hole” has formed each spring since the mid-1980s. The stratospheric ozone layer, extending from about 10 to 20 miles (15 to 35 kilometers) above the surface, protects life on Earth from the sun’s harmful ultraviolet rays. (more…)
*New computer modeling study, led by a Berkeley Lab scientist, could help revise understanding of permafrost’s role in global warming*
Billions of tons of carbon trapped in high-latitude permafrost may be released into the atmosphere by the end of this century as the Earth’s climate changes, further accelerating global warming, a new computer modeling study indicates.
The study also found that soil in high-latitude regions could shift from being a sink to a source of carbon dioxide by the end of the 21st century as the soil warms in response to climate change. (more…)
ANN ARBOR, Mich.— A radical new approach to thwarting Internet censorship would essentially turn the whole web into a proxy server, making it virtually impossible for a censoring government to block individual sites.
The system is called Telex, and it is the brainchild of computer science researchers at the University of Michigan and the University of Waterloo in Canada. They will present it Aug. 12 at the USENIX Security Symposium in San Francisco. (more…)
GAINESVILLE, Fla. — After a 10,000-year absence, wildfires have returned to the Arctic tundra, and a University of Florida study shows that their impact could extend far beyond the areas blackened by flames.
In a study published in the July 28 issue of the journal Nature, UF ecologist Michelle Mack and a team of scientists including fellow UF ecologist Ted Schuur quantified the amount of soil-bound carbon released into the atmosphere in the 2007 Anaktuvuk River fire, which covered more than 400 square miles on the North Slope of Alaska’s Brooks Range. The 2.1 million metric tons of carbon released in the fire — roughly twice the amount of greenhouse gases put out by the city of Miami in a year — is significant enough to suggest that Arctic fires could impact the global climate, said Mack, an associate professor of ecosystem ecology in UF’s department of biology. (more…)
*comScore Announces Availability of Canadian Online Banking Insights Report*
TORONTO, Canada, July 27, 2011 – comScore, Inc., a leader in measuring the digital world, today announced the availability of the comScore Canadian Online Banking Insights report, providing a detailed look into emerging trends in the Canadian online banking industry. Based on comScore’s opt-in research panel of approximately 40,000 Canadian Internet users, the detailed quarterly reports include web site visitation, online marketing metrics, transaction benchmarks and mobile banking data that yield critical insights into emerging trends and consumer behavior in the Canadian online banking industry.
“We are excited to introduce a solution to the Canadian financial services industry leveraging comScore’s industry-leading measurement solutions and expertise in the online banking sector,” said comScore vice president Bryan Segal. “At comScore, we have long provided actionable insights into a broad range of online financial services such as credit cards, brokerage and mobile banking, which have helped our clients optimize their strategic digital marketing decisions. Through comScore’s Canadian Online Banking Insights report, financial services firms in Canada now have access to a wealth of competitive insights to help them understand the industry landscape and maximize the return on their digital investment.” (more…)
