Your climate plan
Put the course together in one realistic plan: find the few choices that make up most of a personal footprint, skip the ones that barely register, and add a step for adapting and one for reaching beyond yourself.
MEET ARMAN
A real week, not an ideal one
Arman lives in a large city with a metro. He drives about 15,000 km a year, mostly alone. Once a year he flies long-haul to visit his sister abroad. His flat is heated with gas and cooled with an old air conditioner. He eats beef or lamb most days. And he feels guilty every time he's handed a plastic straw.
Arman wants to do something that actually counts, without turning his life upside down. Let's put rough numbers on his choices.
Car: 15,000 km × 7 L/100 km = 1,050 litres of petrol
1,050 L × about 2.3 kg CO2 per litre
Flight: one long-haul return trip, economy
Straws: one plastic straw a day for a year
Charger: a phone charger left plugged in all yearCar ≈ 2.4 tonnes CO2 a year
Flight ≈ 1–2 tonnes CO2 (more if contrails are counted)
Straws well under 1 kilogram
Charger about a kilogram or twoRough, rounded estimates. The point is the scale: the car and the flight are thousands of times bigger than the straws.
Check yourself
Arman can make one change this year. Which one cuts his emissions the most?
- Refusing every plastic straw for the rest of the year
- Unplugging all his chargers every single night
- Taking the metro instead of driving half the time
- Rinsing and recycling every bottle and can he uses
Show the answer
Taking the metro instead of driving half the time
Right. Halving his driving saves roughly 1.2 tonnes a year, more than a lifetime of straws and chargers combined.
The big four in most footprints
- Getting around: how much you drive, in what, and how often you fly, especially long-haul.
- Home energy: heating and cooling, how well the home holds its temperature, and where the electricity comes from.
- Food: beef and lamb have by far the largest footprint per gram of protein, because cattle and sheep release methane. Wasting less food helps too.
- Stuff: buying fewer, longer-lasting things, since each one carries the emissions of making it.
What feels green vs what moves the numbers
Feels big, is small
Refusing straws and bags, unplugging chargers, reusable cups. Fine habits, often good for other reasons like litter and oceans, but each is worth kilograms, not tonnes.
Feels ordinary, is big
One fewer long-haul flight, a car-light commute, sealing and insulating a gas-heated home, eating much less beef and lamb. Each can be worth hundreds of kilograms to tonnes a year.
Check yourself
Sort each change by how much it typically cuts a year
- Skipping one long-haul return flight
- Refusing plastic straws
- Swapping beef for beans or chicken most days
- Unplugging a phone charger at night
- Commuting by metro instead of driving alone
- Sealing drafty windows in a gas-heated flat
Show the answer
Big lever: Skipping one long-haul return flight, Swapping beef for beans or chicken most days, Commuting by metro instead of driving alone, Sealing drafty windows in a gas-heated flat
Small lever: Refusing plastic straws, Unplugging a phone charger at night
BEYOND YOUR FOOTPRINT
Your reach is bigger than your footprint
One person's footprint is a few tonnes; the systems around you are millions. So a good plan also includes one outward step: talking about what you're doing, pushing for better options at work or in your building, supporting good public transport and clean power. And it includes one adaptation step from lesson 11, like a heat plan for an older relative.
If Arman convinces his office to allow two days a week of remote work, a dozen colleagues cut their commute too. That can outweigh his own car trips.
Build your plan in five steps
- 1 · Find your big lines
Roughly estimate your driving, flights, home heating and cooling, and how often you eat beef or lamb. Ignore the rest for now.
- 2 · Pick one or two
Choose the biggest line you can realistically change, not the one that looks most virtuous.
- 3 · Make it concrete
Write the when and the how: 'On Mondays, Wednesdays and Thursdays, I take the metro.'
- 4 · Add one adaptation and one outward step
A heat or water plan for your household, and one conversation or request that reaches beyond you.
- 5 · Review in three months
Keep what stuck, fix what didn't, then pick the next line.
Check yourself
Arman will still fly to his sister's wedding this year. Since he can't be perfect, his plan to drive less and eat less beef isn't worth doing.
Show the answer
False
False. Emissions add up tonne by tonne, and so do savings. Cutting his driving and beef can save well over a tonne a year whether or not he takes that flight. A plan that fits a real life beats a perfect plan nobody follows.
Check yourself
Arman writes three draft plans and asks you which one to start with. Which is the best mix of impact and realism?
- Switch to reusable bags and straws, recycle everything, and change nothing else
- Take the metro three days a week, eat beef less, and seal his windows
- Sell the car, go fully vegan and never fly again, all from next Monday
- Buy carbon offsets for everything and carry on exactly as before
Show the answer
Take the metro three days a week, eat beef less, and seal his windows
Yes. It targets three of his biggest lines with changes he can keep up. He can add a heat plan for his mother and one outward step, then review in three months.
Course recap
- A few choices dominate most footprints: driving, flying, home heating and cooling, and beef and lamb.
- Straws, bags and chargers are worth kilograms; the big levers are worth hundreds of kilograms to tonnes.
- A good plan is concrete, realistic and reviewed: one or two big lines, a clear when and how, a check-in after three months.
- Add one adaptation step and one step that reaches beyond you; skip guilt, and don't let offsets replace real cuts.