Seeds are surreptitiously hitching a ride on human visitors to Antarctica, threatening to sow invasive species in one of the last remaining pristine environments on Earth. About 20 percent of visitors to the frozen continent bring stowaway seeds on their clothing and luggage, according to a new study. The research highlights the potential risk to Antarctica’s indigenous species, but also the impressive traveling abilities of plants.
In a break from their usual business of overthrowing South American governments, covering up alien landings, and broadcasting coded messages through my fillings, the CIA has revived a program that teams up spies and scientists for the study of climate change. Through the program, scientists get access classified images of the polar ice caps, as well as the chance to pick the targets of off-duty spy satellites.
This Thursday, NASA will kick off the largest aerial survey ever undertaken of Earth's polar regions. The effort will help fill a multi-year gap between the satellite missions that usually track changes in ice, and should also help scientists understand how the changing ice sheets might contribute to sea level rise around the world.
Think you've done the ultimate road trip? Think again. That tour de force can only be rightfully claimed by a team of scientists who spent this winter driving 2,000 miles across East Antarctica -- at a top speed of about 9 miles per hour.
In late December, twelve American and Norwegian scientists set out to complete the second segment of a two-season overland traverse of East Antarctica. This year's expedition began with the team traveling in two groups, with one heading first to 'Camp Winter' to repair the vehicles that were damaged during Season 1 and then driving to the South Pole, and the second group testing equipment at McMurdo Station before meeting up with group one at the South Pole. The entire team then headed to Troll Station, a Norwegian research station located about 150 miles from the East Antarctic coast, stopping at various points along the way to fly unmanned aerial vehicle (UAV) missions and drill for ice core samples.
An iceberg 160 square miles breaks loose to leave one of the world's largest ice shelves hanging by a thread
By Abby SeiffPosted 03.25.2008 at 5:58 pm 9 Comments
At 5,282 square miles the Wilkins Ice Shelf is one of the largest on the Antarctic Peninsula. It is also the latest casualty of global warming.
Satellite images released today by the British Antarctic Survey and the National Snow and Ice Data Center reveal a massive collapse over the past month—disintegration resulting in, most recently, a breakaway iceberg seven times the size of Manhattan.