Antifreeze smell while driving along w/smoke out of AC vents?

Hello all,

I'm have been getting a very strong smell of antifreeze the last few days while driving. Today, i had a low coolant light come on and i started to see smoke come out of the A/C vents. Additionally, when i stepped out of my car this morning i noticed that the carpet is wet under the acceleration and brake pedal.

What is causing this?

How can i fix it?

As always...thanks for your help.