This is probably the answer :
http://blog.mdwholesale.com/how-to-f...he-right-side/
The culprit seems to be the design of the Honda exhaust system, specifically an anti-corrosion coating on the muffler and/or exhaust system. When the muffler gets really hot and road debris gets on the muffler, this coating gives off the rubber burnt smell. It is probably worse in wet and snowy conditions when more debris gets thrown onto the muffler.
I own a 2005 Honda Accord and I also have this problem.
Joe