But lakes do not have universally rising water levels. The oceans do, primarily due to ice melt in Greenland and Antarctica, as well as warming ocean water temperatures that makes the volume expand. Since all oceans are connected, the process is worldwide and universal.
Lakes, on the other hand, often suffer from evaporation losses due to higher ambient temperatures or improper water management of tributary rivers, which actually leads to shrinkage. Look at what's happening at the Dead Sea (actually a lake) which is nowadays living up to its name and really dying, or the Aral Sea which was a one of the largest lakes in Asia and has lost about 90% of its surface area in a mere 30 years. In the US, there are Lake Powell and to a lesser extent Lake Mead that are drying up rapidly and water levels have dropped about 100 ft from their earlier levels.
The latter ones are a real pity, they were my favorite boating places in the US because of their breathtaking scenic beauty, but they have now lost most of their charm.