Compare true environmental costs

A single Bitcoin transaction consumes ~1,500 kWh of electricity, produces ~680 kg CO₂e, and requires ~16,000 liters of water — enough to fill a backyard swimming pool.

Environmental impact of an e-reader (e.g. Kindle) amortized over 50 books. Manufacturing produces ~168 kg CO₂e, making each book ~3.4 kg CO₂e.

One hour of HD streaming consumes about 0.08 kWh total, producing ~36g CO₂.

Generating a single AI image consumes approximately 0.002–0.007 kWh of electricity, resulting in roughly 2–7 grams of CO₂.

A 20km round trip in a gasoline car produces approximately 3.2 kg of CO₂ from fuel combustion alone, plus tire/brake microparticles and fuel production impacts.

One EV kilometer produces ~53g CO₂e (EU grid + battery manufacturing), with 30% more tire microplastics than gasoline cars due to heavier batteries.

A 200g steak carries ~12 kg CO₂e across its full lifecycle and requires ~3,080 liters of water.

One liter of cow's milk produces ~3.2 kg CO₂e globally, mostly from enteric methane and feed production. About 8x the footprint of oat milk.

Each kilogram of food waste produces ~2.5 kg CO₂e — more than the food's own weight. This includes production emissions plus methane from landfill decomposition.

Conventional tomatoes average 1.4 kg CO₂e/kg globally, ranging from 0.3 (open-field, warm) to 7+ (heated greenhouse, Northern Europe).

Organic open-field tomatoes produce ~0.95 kg CO₂e/kg — similar to conventional. The advantage is near-zero pesticide toxicity; the trade-off is higher land use per kg.

One liter of oat milk produces ~0.4 kg CO₂e — about one-eighth of cow's milk. It also uses far less water and land.

A plant-based burger patty produces ~0.5 kg CO₂e — about 90% less than an equivalent beef patty. Most emissions come from ingredient production and refrigerated transport.

One liter of bottled water in PET produces ~160 g CO₂e and leaves 25g of plastic waste. Hundreds of times the carbon footprint of tap water.

One liter of EU tap water produces just 0.35 g CO₂e — nearly 500x less than bottled water. Zero waste, zero packaging, strictly regulated quality.

Manufacturing a new car produces 5,600–8,500 kg CO₂e and uses ~130,000 liters of water. Amortized over 15 years: ~440 kg CO₂e and 8,700 liters/year — before a single kilometer driven.

A new smartphone has a ~70 kg CO₂e lifecycle footprint, with 80% from manufacturing. Amortized over 3 years: ~23 kg CO₂e per year. Mineral mining causes significant harm.

A single fast fashion t-shirt requires ~2,700L water, produces 6–8 kg CO₂e, and releases toxic dyes. Average garment worn only 7 times.

A used/refurbished smartphone produces ~3.5 kg CO₂e per year of use — 91% less than buying new. The refurbishment process emits only ~15 kg CO₂e vs ~60 kg for manufacturing.

A 300-page paperback generates approximately 1.5 kg CO₂e, primarily from paper production. Paper is highly recyclable (90% in OECD countries).

One pack of cigarettes produces 0.28 kg CO₂e and consumes 74 liters of water. But emissions are the smallest problem — tobacco kills 8 million people/year, and cigarette butts are the world's most lit...

A cotton tote bag produces ~27 kg CO₂e and requires ~10,000 liters of water to make. At 150 uses the per-use impact is small, but it must be used 50+ times to beat a plastic bag.

A grocery paper bag produces ~64 g CO₂e and requires ~3.8 liters of water to manufacture. Its carbon footprint is roughly 4x that of an HDPE plastic bag.

An HDPE plastic bag produces just ~15 g CO₂e — a fraction of a paper bag's footprint. The problem is persistence: it survives 500+ years and fragments into microplastics.

Recycling one aluminum can saves 95% of the energy vs primary production. Aluminum is infinitely recyclable without quality loss.

A medium-sized dog produces ~2.1 kg CO₂e per day, primarily through food. Annual footprint (~770 kg) exceeds the food carbon footprint of many humans.

A 10-minute shower uses ~90 liters and requires ~2.6 kWh thermal energy, producing ~0.8 kg CO₂e with EU average heating mix.

Two paper towel sheets produce ~15 g CO₂e and 5g of non-recyclable waste per hand-drying. Small per use, but hundreds of billions are used globally each year.

One warm-air hand dryer use produces ~7 g CO₂e (EU grid) and generates zero waste. Significantly lower impact than paper towels.

A gasoline push mower burns ~1.5 liters/hour producing ~3.5 kg CO₂e. The real problem is air pollution: one hour of mowing produces smog-forming emissions equal to driving 40 new cars for an hour.

One tumble dryer load uses 1.0–2.7 kWh depending on technology, producing ~1.3 kg CO₂e with the EU average grid. It is one of the most energy-intensive household appliances.

Hand washing dishes with a running tap produces ~1.1 kg CO₂e and uses ~50 liters of water per equivalent load — more than double a dishwasher's eco mode.

One 60°C wash load produces ~0.58 kg CO₂e and uses 60 liters of water. Dropping to 30°C roughly halves the energy use and carbon footprint.

One eco-mode dishwasher cycle produces approximately 0.47 kg CO₂e and uses about 10 liters of water — less than half the emissions of typical hand washing.

A 30°C wash produces ~0.25 kg CO₂e — less than half of a 60°C wash. Modern detergents clean effectively at low temperatures while reducing microfiber release.

A Helsinki-Bangkok return flight produces ~2,500 kg CO₂e per economy passenger — more than a quarter of one person's sustainable annual carbon budget.

A Helsinki–London return flight produces ~550 kg CO₂e per economy passenger, including radiative forcing from contrails and NOx at altitude.

An average EU oil-heated home burns ~5.5 liters of heating oil per winter day, producing ~16.5 kg CO₂e. Oil heating generates 130x more particulate emissions than natural gas.

A ground-source heat pump (COP 4) uses ~6.25 kWh electricity to deliver the same heat as 5.5 liters of oil, producing ~1.6 kg CO₂e per winter day — ~90% less than oil heating.