Some good news is coming out of Antarctica this week, as the countries who manage the region are currently in meetings to discuss new controls over the fleets of passenger ships that have been swarming its icy waters. Tourism to the Antarctic has jumped from 10,000 visitors a decade ago to over 45,000 this past year, the AP reports , and with that comes increased concern about environmental impact to the already precarious region. While the current rules state that visitors cannot leave any garbage or human waste behind in the waters, there have been few regulations on the types of vessels allowed to travel to Antarctica, and what kind of fuel they can use. This is of particular concern because there have been several incidents in the past few years, including the sinking of the Explorer , in which ships have either run aground or have not been strong enough to withstand an impact with an iceberg. According to the AP,