Planet health
VITALITY
Six trackers, one ledger. History stays on this device (vitality-history-v1). Tap Today to edit again.
History
Saved on this device only. Tap a day to view; only Today is editable.
Today I am tracking
Commute
Distance and how you actually traveled today.
Produced: 450.0000 g = 5.0000 km × 90 g/km · Credit vs car: 475.0000 g
All six categories feed the same score—switch cards anytime. Today auto-saves after you pause typing.
Bus / transit — smog tint when trip emits CO₂.
You vs nature
Same tree rule as Recovery (≈21 kg CO₂ / tree / year).
Commute footprint: 450.00 g CO₂-e in this model (5.00 km, bus).
One rough backyard-tree yardstick pulls on the order of 57.5 g CO₂ from the air per day in this app's teaching model. Your number above is about 7.82× that daily slice—i.e. it would take about 7.82 such tree-days of uptake to match this slice alone (order-of-magnitude only).
Plants: grass and moss fix carbon too, but per square metre per day it's usually tiny next to a whole tree's canopy and roots—so we anchor comparisons on the tree/day number instead of a blade of grass.
Ocean life: phytoplankton and the marine carbon pump move gigatonnes globally, but that's not something a personal log can allocate to you—so we don't convert streaming hours into “plankton seconds.” The tree line keeps the comparison honest and tangible.
Vitality balance index
Raw: 51.3514 · clamped to [0, 100] for the dial
241.28 L CO₂ at STP (~121 party balloons if ≈2 L each).
Show score formula
Score = 100 × 475.0000 / (475.0000 + 450.0000) = 51.3514
Vs walking: 450.0000 g CO₂ for this 5.0000 km trip. Solo car gap avoided: 475.0000 g.
Ledger
Every line uses the same factors as your score.
Activity sum
925.0000 g
| Category | Produced | Saved / credit |
|---|---|---|
| Commute 5.00 km × 90 g/km | 450.0000 g | 475.0000 g |
| Hydration (plastic) 0 × 82 g/bottle | 0.0000 g | 0.0000 g |
| Travel (flight) 0.00 km × 180 g/km | 0.0000 g | 0.0000 g |
| Home electricity 0.000 kWh × 386.4 g/kWh | 0.0000 g | 0.0000 g |
| Food (meals) 0 veg × 390 g + 0 meat × 2150 g; savings vs meat baseline for veg slots | 0.0000 g | 0.0000 g |
| Streaming 0.00 h × 47.6 g/h | 0.0000 g | 0.0000 g |
| Totals | 450.0000 g | 475.0000 g |
| Pool shares: 51.3514% good · 48.6486% pollution (of produced + saved) | ||
Impact stack
One horizontal bar: green = all "good" credits, warm tones = each pollution source (exact gram values in tooltip).
Recovery plan
Today's total pollution from the ledger is 450.0000 g (0.450000 kg CO₂-e). To offset that in one year with the 21 kg/tree rule-of-thumb, plant about 0.0214 mature trees.
2-year outlook
If you switch to Bus 3× per week for your 5.0000 km one-way commute (round trip each day), modeled savings vs solo car are 296.4000 kg CO₂-e by 2028 (exact formula: 2 × 52 × 3 × 2 × km × (185 − 90) g/km ÷ 1000).