As I previously stated, it's useless to expect the truth at the pro or nay sites on climate change. All of them manipulate the data to suit their own argument.
Thankfully, Industry won't accept bullshit from the governments involved. They need to know when they can transport stuff over a safe Ice Road. To that end, the NWT government has: http://www.dot.gov.nt.ca/_live/pages/wpPages/roadConditions.aspx - - following the link gives the opening and closing dates for the Ice Roads http://www.dot.gov.nt.ca/_live/pages/wpPages/Open_Close_Date_Winter_Roads.aspx So, we can easily see when it is cold enough to create the Ice Road and when it has warmed up enough so the Ice Road must be closed.
What the Ice Road report shows is that it was warmer in the Canadian Arctic in the middle 1990s and the last few years have been among the coldest on record.
The Department of Transport maintains the Ice Report for Canadian Arctic Sea Ice. The portal can be found here: http://ice-glaces.ec.gc.ca/app/WsvPageDsp.cfm?ID=1&Lang=eng - - the last week's ice can be seen here: http://ice-glaces.ec.gc.ca/Ice_Can/ANIM-CMMBCTCA.gif The Annual Ice Atlas is here: http://ice-glaces.ec.gc.ca/App/WsvPageDsp.cfm?Lang=eng&lnid=11&ScndLvl=no&ID=11660 here it is in a table: http://ice-glaces.ec.gc.ca/App/WsvPageDsp.cfm?Lang=eng&lnid=11&ScndLvl=yes&ID=11762
What the Sea Ice Reports show is that in 1989 there was more Sea Ice than ever measured since 1953, then the Sea Ice began to reduce and in 2007 there was less Sea Ice than ever measured since 1953. Since then, the Sea Ice has increased.
There is a report referenced on the site because 2007 shocked the people at DOT. The report is here: http://adaptation.nrcan.gc.ca/projdb/pdf/73_e.pdf
The conclusion of the report is that it was wind that was responsible and not Global Warming.
I'm more inclined to believe information that is developed to aid in transportation than information that is tweaked to represent a side of the Climate Change debate.
While I understand why you deem this information more reliable than others (an assessment that I agree with), this is merely one datapoint. If you're going to extrapolate from this one data point (ice-roads) the reality or lack thereof of global warming you have a different problem. The ice roads are not the entire world and tell us nothing about what is going on with the world's climate.