Research and development of electric propulsion systems for aircraft is continuing, in spite of the sector’s financial woes due to Covid-19. Catherine Early reports
Giles Crosse looks at UN efforts to remove the barriers that have prevented the plethora of remote sensing tools now available to bring about change on the ground
Gary Davis and Dr Richard Tipper of Ecometrica argue that outdated inventory-based systems have to be replaced with direct accounting methods if we are to meet the Paris Agreement