Obama Plans to Boost U.S. Forces in Afghanistan, Set Benchmarks

President Barack Obama plans to send 4,000 more U.S. troops to Afghanistan to train local forces and set benchmarks for progress in battling militants there and in Pakistan, administration officials said.

The president’s new strategy for turning the corner in the eight-year-old war, to be announced this morning, comes amid increased insurgent activity and before Afghanistan’s presidential and provincial elections scheduled for Aug. 20.

Obama also would support legislation to boost economic aid to Pakistan to $1.5 billion a year in exchange for that country cracking down on Taliban and al-Qaeda militants hiding out along border, the officials, who briefed reporters last night, said.

The administration began outlining the new strategy for members of Congress yesterday. Obama also will be discussing it with other leaders of the North Atlantic Treaty Organization when he meets with them for a summit April 3-4 on the French- German border. The administration has been pressing the allies to shoulder more responsibility in Afghanistan.

The 4,000 extra U.S. troops, which are in addition to the 17,000 military personnel Obama already has ordered to the country, will prepare Afghan forces to take a bigger role. All the extra troops are scheduled to be in the country by fall.

“They are going to stress training the Afghans,” House Defense Appropriations subcommittee Chairman John Murtha said after a briefing by Defense Secretary Robert Gates and Admiral Michael Mullen, chairman of the Joint Chiefs of Staff.

‘Realistic’ Goals

Murtha, a Pennsylvania Democrat, said the goals of the strategy are “realistic.” He described them as: “Train the Afghans and then get the hell out of there.”

The new U.S. approach also includes strengthening Pakistan through more aid, as proposed by Senators John Kerry, a Massachusetts Democrat, and Richard Lugar, an Indiana Republican.

Kerry, chairman of the Senate Foreign Relations Committee, said parts of the plan “are very constructive and positive,” citing the need to get trainers into the country. He said he’s still concerned about terrorist bases in Pakistan.

The administration plans stepped up diplomacy in the region, as well. Secretary of State Hillary Clinton welcomed Iran’s planned participation next week in an international conference on Afghanistan. Iran “has a role to play in the region, and we hope it will be a constructive role,” Clinton said yesterday in Mexico.
Sources : http://www.bloomberg.com/apps/news?pid=20601087&sid=afZ_eWlhL6a0&refer=home

New Evidence From NSF-funded ANDRILL Demonstrates Climate Warming Affects Antarctic Ice Sheet Stability

A five-nation scientific team has published new evidence that even a slight rise in atmospheric concentrations of carbon dioxide, one of the gases that drives global warming, affects the stability of the West Antarctic Ice Sheet (WAIS). The massive WAIS covers the continent on the Pacific side of the Transantarctic Mountains. Any substantial melting of the ice sheet would cause a rise in global sea levels.

The research, which was published in the March 19 issue of the journal Nature, is based on investigations by a 56-member team of scientists conducted on a 1,280-meter (4,100-foot)-long sedimentary rock core taken from beneath the sea floor under Antarctica's Ross Ice Shelf during the first project of the ANDRILL (ANtarctic geological DRILLing) research program--the McMurdo Ice Shelf (MIS) Project.

The National Science Foundation (NSF), which manages the U.S. Antarctic Program (USAP), provided about $20 million in support of the ANDRILL program. The other ANDRILL national partners contributed an additional $10 million in science and logistics support.

"The sedimentary record from the ANDRILL project provides scientists with an important analogue that can be used to help predict how ice shelves and the massive WAIS will respond to future global warming over the next few centuries," said Ross Powell, a professor of geology at Northern Illinois University.

"The sedimentary record indicates that under global warming conditions that were similar to those projected to occur over the next century, protective ice shelves could shrink or even disappear and the WAIS would become vulnerable to melting," Powell said. "If the current warm period persists, the ice sheet could diminish substantially or even disappear over time. This would result in a potentially significant rise in sea levels."

ANDRILL--which involves scientists from the United States, New Zealand, Italy and Germany--refines previous findings about the relationship between atmospheric carbon dioxide concentration, atmospheric and oceanic temperatures, sea level rise and natural cycles in Earth's orbit around the Sun, through the study of sediment and rock cores that are a geological archive of past climate.

The dynamics of ice sheets, including WAIS, are not well understood, and improving scientists' comprehension of the mechanisms that control the growth, melting and movements of ice sheets was one of NSF's research priorities during the International Polar Year (IPY). The IPY field campaign, which officially ended March 2009, has been an intense scientific campaign to explore new frontiers in polar science, improve our understanding of the critical role of the polar regions in global processes, and educate students, teachers, and the public about the polar regions and their importance to the global system. NSF was the lead agency for U.S. IPY efforts.

The cores retrieved by ANDRILL researchers have allowed them to peer back in time to the Pliocene era, roughly 2 million to 5 million years ago. During that era, the Antarctic was in a natural climate state that was warmer than today and atmospheric carbon dioxide levels were higher. Data from the cores indicate the WAIS advanced and retreated numerous times in response to forcing driven by these climate cycles.

Powell and Tim Naish, director of Victoria University of Wellington's Antarctic Research Centre, served as co-chief scientists of the 2006-2007 ANDRILL project that retrieved the data and are lead authors in one of two companion studies published in Nature.

Naish said the new information gleaned from the core shows that changes in the tilt of Earth's rotational axis has played a major role in ocean warming that has driven repeated cycles of growth and retreat of the WAIS for the period in Earth's history between 3 million and 5 million years ago.

"It also appears that when atmospheric carbon dioxide concentrations reached 400 parts per million around four million years ago, the associated global warming amplified the effect of the Earth's axial tilt on the stability of the ice sheet," he said.

"Carbon dioxide concentration in the atmosphere is again approaching 400 parts per million," Naish said. "Geological archives, such as the ANDRILL core, highlight the risk that a significant body of permanent Antarctic ice could be lost within the next century as Earth's climate continues to warm. Based on ANDRILL data combined with computer models of ice sheet behavior, collapse of the entire WAIS is likely to occur on the order of 1,000 years, but recent studies show that melting has already begun."

The second ANDRILL study in Nature--led by David Pollard of Pennsylvania State University and Rob DeConto from University of Massachusetts--reports results from a computer model of the ice sheets. The model shows that each time the WAIS collapsed, some of the margins of the East Antarctic Ice Sheet also melted, and the combined effect was a global sea level rise of 7 meters above present-day levels.

Whether the beginnings of such a collapse could start 100 years from now or within the next millennium is hard to predict and depends on future atmospheric CO2 levels, the researchers said. However, the new information from ANDRILL contributes a missing piece of the puzzle as scientists try to refine their predictions of the effects of global warming.

The most recent report of the Intergovernmental Panel on Climate Change (IPCC) noted that because so little is understood about ice sheet behavior it is difficult to predict how ice sheets will contribute to sea level rise in a warming world. The behavior of ice sheets, the IPCC report said, is one of the major uncertainties in predicting exactly how the warming of the globe will affect human populations.

"From these combined data modeling studies, we can say that past warming events caused West Antarctic ice shelves and ice grounded below sea level to melt and disappear. The modeling suggests these collapses took one to a few thousand years," Pollard said.

Pollard and DeConto also underscored the role of ocean temperatures in melting of the ice.

"It's clear from our combined research using geological data and modeling that ocean temperatures play a key role," DeConto said. "The most substantial melting of protective ice shelves comes from beneath the ice, where it is in contact with seawater. We now need more data to determine what is happening to the underside of contemporary ice shelves."

The ANDRILL Science Management Office, located at the University of Nebraska-Lincoln, supports science planning and the activities of the international ANDRILL Science Committee (ASC). Antarctica New Zealand is the ANDRILL project operator and has developed the drilling system in collaboration with Alex Pyne at Victoria University of Wellington and Webster Drilling and Exploration.

The U.S. Antarctic Program and Raytheon Polar Services Corporation (RPSC) supported the science team at McMurdo Station and in the Crary Science and Engineering Laboratory, while Antarctica New Zealand supported the drilling team at Scott Base.

Award to Recognize Phoenix Mars Lander Team

The team that developed and operated NASA's Phoenix Mars Lander mission will receive the 2009 John L. "Jack" Swigert Award for Space Exploration from the Space Foundation.

During five months of operations at a Martian arctic site after landing on May 25, 2008, the Phoenix spacecraft confirmed the presence of frozen water just below the surface, identified potential nutrients and other substances in the soil, and observed snow in the atmosphere.

The Space Foundation, based in Colorado Springs, Colo., announced Feb. 19 that it will present the award to the Phoenix team on March 30, during the foundation's 25th National Space Symposium, in Colorado Springs.

The annual award honors the memory and legacy of Apollo 13 astronaut Jack Swigert.

The Phoenix team is a collaboration of several organizations. Phoenix Principal Investigator Peter H. Smith of the University of Arizona, Tucson, is supported by an international team of science co-investigators. NASA's Jet Propulsion Laboratory, Pasadena, Calif., provided project management, mission management, and technical collaboration with the science and spacecraft teams. Lockheed Martin Space Systems, Denver, provided spacecraft development, assembly and testing, and flight-system mission operations support. International contributions have been provided by the Canadian Space Agency; the University of Neuchatel, Switzerland; the universities of Copenhagen and Aarhus, Denmark; the Max Planck Institute, Germany, and the Finnish Meteorological Institute.

Eye-socket camera films from inside the head

The Eyeborg Project

There's a blurred line between challenge and opportunity.

Having lost his eye in a childhood accident and suffered a lot of pain, Rob Spense, a 36-year-old filmmaker, has decided to do something that'll put filming and seeing into just one eye, quite literally.

His work is called the Eyeborg project, and involves his friend Kosta Grammatis, a photographer/engineer, and a team of ocularists, inventors, and engineering specialists. The team is building a prosthetic eye that can capture and transmit video.

While the idea is simple, it's a great engineering challenge. For the project to be successful, the smallest, lightest, most power-efficient technologies have to be found and implemented.

The team is using the world's smallest CMOS camera for the project. This device is about 1.5 millimeters squared. It's so small that if you sneeze while it's resting on your open palm, you might never find it again.

The eye camera captures and sends video signal wirelessly using an RF transmitter as small as the tip of a pencil. According to Kosta, the data will be sent to a recorder placed in a backpack. The eye-socket camera is powered by a lithium polymer battery that fits inside the prosthesis.

Rob and the team are currently working on a documentary about the Eyeborg Project and the experience of living with a bionic eye.

Their work could ultimately help San Francisco artist Tanya Vlach who is looking for technology to use for her own bionic eye-cam.

Source news.cnet.com/8301-17938_105-10190801-1.html