Trends
The problem is that most of the trends are not that drastic and are lost in seasonal variations. Again, I'm not sure the scientists have a choice about how to present the data in a visible way.
If you look at the actual Northern Hemisphere ice graph, or the blue line on the world sea ice graph, the trend is obviously downward, but it's pretty hard to see anything drastic there.
And again, the Southern ice pack seems stable, or even going up. What's up with that?
I would give much to see this detailed data pushed back to 1900. Too bad we weren't launching satellites back then.
Some scientists have done a pretty good job working with what's available, though. Here's a good reference.