Climate impact estimates made by the airports themselves are overly optimistic and largely ignore factors such as inbound flights

Cumulative emissions 2025-2050,

million tonnes of CO2 equivalent

Impact presented by applicant airport

NEF maximum impact model

Bristol

2.0

12.1 Mt CO2

Leeds Bradford

2.4

14.3

Southampton

10.1

16.1

Stansted

5.2

42.4

0

10

20

30

40

Cumulative emissions 2025-2050,

million tonnes of CO2 equivalent

Bristol

2.0

12.1 Mt CO2

Impact presented by applicant airport

Leeds Bradford

NEF maximum impact model

2.4

14.3

Southampton

10.1

16.1

Stansted

5.2

42.4

0

10

20

30

40