British Antarctic Survey (BAS) recently captured this video footage of a huge crack in the Larsen C Ice Shelf, on the Antarctic Peninsula.
Currently a huge iceberg, roughly the size of Norfolk, looks set to break off Larsen C Ice Shelf, which is more than twice the size of Wales. Satellite observations from February 2017 show a growing crack in the ice shelf which suggests that an iceberg with an area of more than 5,000 km² is likely to calve soon.
Researchers from the UK-based MIDAS project, led by Swansea University, have reported several rapid elongations of the crack in recent years. BAS scientists are involved in a long-running research programme to monitor ice shelves to understand the causes and implications of the rapid changes observed in the region. They shot this footage as they flew over the ice shelf on their way to collect science equipment.
During the current Antarctic field season, a glaciology research team has been on Larsen C using seismic techniques to survey the seafloor beneath the ice shelf. Because a break up looks likely the team did not set up camp on the ice as usual. Instead they made one-off trips by twin otter aircraft supported from the UK’s Rothera Research Station.
Ice shelves in normal situations produce an iceberg every few decades. There is not enough information to know whether the expected calving event on Larsen C is an effect of climate change or not, although there is good scientific evidence that climate change has caused thinning of the ice shelf. Once the iceberg has calved, the big question is whether Larsen C will start to retreat.
Donald Trump was the focus of President Obama’s jokes at the 2011 White House Correspondents’ Dinner. It was there that Trump resolved to run for president, adviser Roger Stone tells FRONTLINE in “The Choice 2016,” coming to PBS Sept. 27.
Thank you Dr. Banks for touching on a topic that is rarely addressed in medicine. An estimated 1.4 million people or 0.6 percent of U.S. adults identify as transgender, according to a new study. “The findings from this study are critical to current policy discussions that impact transgender people,” said Jody Herman, an author of the study. “Policy debates on access to bathrooms, discrimination, and a host of other issues should rely on the best available data to assess potential impacts, including how many people may be affected.”
I know that many doctors are uncomfortable with the topic, but I think that education is key.
In a creative stroke inspired by Hollywood wizardry, scientists have designed a simple way to observe how bacteria move as they become impervious to drugs. The experiments are thought to provide the first large-scale glimpse of the maneuvers of bacteria as they encounter increasingly higher doses of antibiotics and adapt to survive—and thrive—in them.
While the vast majority of Americans consider themselves unprejudiced, many of us unintentionally make snap judgments about people based on what we see—whether it’s race, age, gender, religion, sexuality, or disability. The Love Has No Labels campaign challenges us to open our eyes to our bias and prejudice and work to stop it in ourselves, our friends, our families, and our colleagues. Rethink your bias at http://www.lovehasnolabels.com