The biofuel fueling the H145 is a second-generation biofuel - the SAF of choice of the aviation industry - which significantly reduces CO2 emissions because they are produced from residual and waste materials, usually from the food industry, such as used vegetable oils and fats. As a result, the fuel has no negative impact on agricultural food production.

https://www.aviationpros.com/engines-components/aircraft-engines/electric-green-engine-technology/press-release/21225915/safran-group-first-rescue-helicopter-flies-on-sustainable-aviation-fuel