Delaminating. If some of the countertop material has started to delaminate try heating the area gently with an iron and then resting something heavy on the area. Especially with a newer home, this may soften the glue and allow it to reattach. Be very careful with the heat setting on the iron or you will have to study the "burned surface replacement" section of my site.
If the laminate is loose on an edge and heating it doesn't work, carefully lift up the loose area and scrape out the old glue as best you can. Then use a toothpick to spread carpenters glue in a thin layer over the cleaned area and clamp the laminate in place. If you put a piece of wax paper over the cracked edges and then a thin wood block where the clamp tightens down you will prevent damage to wither the top of bottom of the counter.
Before you put a lot of effort into these repairs I would suggest you look at the section on countertop replacement to see if would make sense. Replacement countertops are not that expensive or difficult to install and make a tremendous difference in the look and feel of the room.