We talk about reducing emissions from aviation, but fill our aircraft up with high polluting fuel. It packs a lot of energy for its weight, and it is this energy that has really enabled commercial flight.

Rolls-Royce has signed an agreement with Air bp that will reduce lifecycle carbon emissions for gas turbine tests carried out at three of its sites and support one of the organisation's key sustainability commitments.

Synthetic fuel derived from renewable energy is essential. Air bp sustainability director Andreea Moyes and senior advisor for hydrogen and eFuels Peter Nowobilski explain how eSAF is key to achieving low-carbon goals.