Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jul 18, 2014
This week: philanthropist David Rubenstein donates more than $12 million to help restore Arlington House, a memorial to George Washington and the home of Confederate General Robert E. Lee; a new report show national parks continue to be economic engines for their local communities; the Obama Administration is dedicating nearly $10 million to help tribal communities deal with the effects of climate change; the Bureau of Ocean Energy Management announces the proposed sale of 340,000 acres off the New Jersey coast for wind energy leases; USGS is testing the use of satellites to track polar bear movements in the Arctic; and it's a new global map of the planet Mars.