Having one fewer child will save 58.6 tonnes of CO2-equivalent per year

Tonnes of CO2-equivalent per year for one person undertaking each action

Have one

fewer child

58.6

Live car free

2.4

Avoid one

roundtrip

transatlantic

flight

1.60

Hang-dry clothes

0.21

Buy green

energy

1.47

Switch electric

car to car free

1.15

Upgrade

light bulbs

0.10

Recycle

0.21

Replace typical

car with hybrid

0.52

Eat a plant-

based diet

0.82

Wash clothes

in cold water

0.25

Live car free

2.4

Upgrade

light bulbs

0.10

Recycle

0.21

Avoid one

roundtrip

transatlantic

flight

1.60

Hang-dry

clothes

0.21

Have one

fewer child

58.6

Wash clothes

in cold water

0.25

Buy green

energy

1.47

Replace typical

car with hybrid

0.52

Switch electric

car to car free

1.15

Eat a plant-

based diet

0.82