Mississippi River water levels are reaching near-record lows. Sections of the middle Mississippi River may become obstructed in December by rock outcrops in southern Illinois. The Army Corps of Engineers plan to remove the rock pinnacles in February, but river navigation industry leaders say that's not soon enough.
The popular website Intrade allows its users to bet on the odds of almost anything — like whether Syrian President Bashar al-Assad will get ousted by a certain date, or whether the movie Argo will win best picture at the Oscars.
This week, Ireland-based Intrade announced that U.S. users will have to unwind their bets and shut down their accounts by the end of the year. That's after the Commodity Futures Trading Commission sued Intrade for operating an unregistered exchange.
Facebook has a long history of upsetting its users by suddenly announcing a change to its privacy settings. In 2009, as a way to quiet the critics, Facebook set up a system for its customers to vote on changes. If enough of them were unhappy, the company would back down. Now, Facebook wants to get rid of the voting.
Superstorm Sandy sparked a lot of interest in rising sea levels when it swept across the Northeast last month and flooded parts of the coast. Over the next century, more water — and higher sea levels — could come from melting ice in Greenland and Antarctica. How much has been unclear.
But now scientists have developed a much clearer view of how quickly that ice has been melting over the past two decades. And that will help researchers forecast the rate of sea-level rise in the years to come.
Before Secretary of State Hilary Rodham Clinton passes the reins to her successor, she's got a few loose ends to tie up. One of them is mapping out the U.S.'s continuing efforts to combat AIDS around the world.
So today she unveiled a "blueprint" for what she called an "AIDS-free generation."
Now Clinton isn't talking about ending the HIV pandemic altogether. Rather, she hopes to prevent most new infections from occurring in the first place and to stop HIV-positive people from developing AIDS.