Takamitsu Kato, who runs an okonomiyaki (Japanese-style savory pancake) restaurant in Hiroshima, has chosen to do his part to reach net-zero emissions — even if it means a rise in his utility costs.

It wasn't an easy decision to make during the coronavirus pandemic, but Kato, 32, is one of a growing number of business owners and companies in the Chugoku region that are proactively joining the global trend toward decarbonization.

“Do you know what this is?” Kato asks his customers over the griddle. On the table is a “carbon neutral” certificate with a green logo made of wood, which is given to businesses and other organizations that use liquefied petroleum gas (LPG).