Sparkling wine is a type of wine that contains carbon dioxide, which creates bubbles. This effervescence can occur naturally during fermentation or be added later. Sparkling wines can be made from various grape varieties and are produced in many regions around the world, with notable styles including Champagne, Prosecco, and Cava. The sweetness of sparkling wine can vary, ranging from dry to sweet. It is often enjoyed during celebrations and special occasions, but it can also be paired with a variety of foods. The unique characteristics of sparkling wine make it a popular choice for many wine enthusiasts.