Nearly 200 countries pledged to cut carbon emissions from commercial aviation on Friday, marking the global community's most ambitious pledge to regulate international air travel's contributions to climate change.
The International Civil Aviation Organization, a United Nations agency known by the abbreviation ICAO that represents 193 member states, announced the new goal at the conclusion of its triennial summit in Montreal, Canada. The result of almost a decade of negotiations, the non-binding target that the agency called a "long-term aspirational goal" asks countries to reach net-zero emissions from cross-border air travel by 2050.
