Hong Kong, March 30 -- The International Civil Aviation Organisation (ICAO) has raised the technical standards for emissions and noise covering both in-development and in-production commercial aircraft. Read More ICAO said the new standards adopted by the ICAO Council addressed the complex realities of bringing new technologies to market. "The ICAO CO2 emissions standard was made 10% more stringent today and is applicable to new aircraft type designs as of 2031," ICAO said. "In addition to this, a complex more stringent CO2 emissions standard was also adopted that will apply to new deliveries of in-production aircraft types from 2035. These more stringent ICAO standards have been developed to ensure the latest technologies are used in aircr...