KEY POINTS
  • The UN climate summit in Glasgow, U.K., this year is projected to have a carbon footprint that roughly doubles that of the last global summit in 2019, according to a report by professional services firm Arup.
  • According to estimates, the two-week COP26 summit, which ends on Friday, will emit about 102,500 tons of carbon dioxide — that's the equivalent of total average annual emissions for more than 8,000 U.K. residents.
  • About 60% of the summit emissions are estimated to come from international flights, while other large contributors include accommodations, policing for the event and transportation to and from venues.
GLASGOW, SCOTLAND - NOVEMBER 11: António Guterres, Secretary-General of the United Nations, speaks during the Global Climate Action High-level event.

The United Nations climate summit in Glasgow, U.K., this year is projected to have a carbon footprint that roughly doubles that of the last global summit in 2019, according to a report by Arup, a London-based professional services firm.

The two-week COP26 climate summit, which ends on Friday, will emit about 102,500 tons of carbon dioxide — that's the equivalent of total average annual emissions for more than 8,000 U.K. residents.