The environmentally-devout sipper will appreciate this eco newsflash: The organization that represents the Champagne houses and Champagne growers is officially launching a new standard bottle to cut the region’s carbon emissions.

Here’s the skinny on the new bottle: It’s 2 ounces lighter so it will reduce annual CO2 output by 8,000 metric tons, equivalent to the annual CO2 emissions of 4,000 cars. That’s one fascinating computation, with bubbly and car emissions in the same equation.

For those worried there will be 2 ounces less to sip, no need to panic. The 750 milliliter bottle is merely thinner; it still contains the same amount of bubbly.

The organization behind the bottle, the one that spent years testing it, is called the Comite Interprofessionnel du Vin de Champagne (CIVC) and it has the goal of cutting carbon emissions by 25 percent by 2020. How many cars factor into that equation? Get a calculator and report back.