Things that matter
Washington, DC
Greenland 2019
Punta Arenas 2018
Arctic 2014
Antarctica 2014
Greenland 2013
Antarctica 2013
Antarctica 2012
Greenland 2011
Antarctica 2011
Antarctica 2009
Greenland 2012
Greenland 2010
Antarctica 2008
Greenland 2008
Ellesmere Island 2007
Maine