If the Louisiana is getting smaller it is due to

If the Louisiana is getting smaller it is due to the rising oceans, right?
http://mobile.nytimes.com/2014/10/04/opinion/gail-collins-the-walrus-and-the-politicians.html?referrer=
Gail Collins thinks rising oceans, (but assume we all know that):
""You'd think that the people in charge of the states where climate change was wreaking the most havoc would be in the forefront of the battle to push it back. But no.""

But what if instead of rising oceans, it is a sinking Louisiana?
http://www.livescience.com/4186-real-reason-louisiana-sinking.html

Would this still be caused by global warming, or just human caused world change? I can believe in human caused world change. Man caused global warming, not so much.