The white paper 'New Aero' discusses the aviation industry's need to embrace transformative propulsion paradigms to address environmental challenges and regulatory shifts. With a focus on environmentally sustainable flights, the paper proposes a vision for the future that prioritizes performance, safety, and economic viability while ensuring environmental stewardship. Highlighting the limitations of batteries and conventional sustainable fuels, the paper asserts that hydrogen is the most viable solution for electric aviation, offering a pathway to a significantly improved future in air travel. The paper underscores the urgency of reducing greenhouse gas emissions in the aviation sector, noting the industry's significant contribution to global CO₂ emissions. It emphasizes the need for radical innovation in propulsion systems to meet stringent climate targets and avoid potential regulatory consequences. The 'flygskam' movement is mentioned as a growing call for responsible air travel, urging the industry to evolve operational practices and technologies. Comparing various energy sources for aviation, the paper discusses the limitations of batteries and sustainable fuels in meeting the sector's requirements. While sustainable and biofuels offer some emission reductions, they still rely on combustion and face challenges related to feedstock availability. Hydrogen emerges as a promising option due to its high energy density, low emissions, and independence from scarce materials. Despite challenges in hydrogen production, its potential for near-zero CO₂ emissions and competitive lifecycle costs position it as a cornerstone for a sustainable aviation future.