Karbonomics

Freelance · Design, Advisor

v1 of a consumer carbon-tracking and spending-insights product, from definition to a polished MVP.

Karbonomics helps people understand the carbon footprint of what they spend. I defined v1 and led design across the consumer app and a companion dashboard for merchants, taking it from early product definition to a polished MVP backed by a reusable design system.

The challenge was making carbon feel personal and actionable rather than abstract. The answer was to start from something everyone already has, their spending, and turn it into a few clear shapes and small goals people can actually win.

Starting from spending

Nobody keeps a carbon diary, but everyone has a bank statement. The home screen starts empty with a single ask: connect an account. Transactions are matched to a category and converted to CO₂e as they arrive, so the first real view is already personal instead of an empty dashboard waiting for input.

Connect card
An empty home that asks for one thing, then fills itself from real spending
Connect your bank account to track your emissions and reach your targets
Connect, pick a bank and watch it sync
empty state → bank → transactions mapped to category + kgCO₂e · 30-day total revealed on completion

One ring for the month

The home screen reduces thirty days of spending to one number and five shapes. Each blob is a spending category, and tapping one isolates it. A Total / Challenge switch swaps the same ring for progress against daily, weekly and monthly goals, so the screen people open most answers both "how am I doing?" and "what can I do next?".

Footprint ring
Thirty days of spending as one number and five shapes
Karbonomics
Past 30 Days
795
kgCO₂e
Lifecycle greenhouse emissions (shown as CO₂e) are calculated for 1 product in your basket, based on multiple factors.i
Tap a shape, or switch to Challenge
5 categories · tap a blob to isolate · total ↔ challenge progress (daily / weekly / monthly)

Challenges small enough to win

Reduction targets are framed as challenges at three cadences, from a meat-free day to a second-hand month. Each card is a soft illustrated shape rather than a chart, the projected saving shows up the moment you join, and progress wraps around the tile you chose.

Challenges
Small, winnable goals at three cadences, with the saving shown before you commit

Daily Challenges

Pick one daily challenge to start
Tap a challenge to join it
3 cadences × 3 challenges · one active per cadence · projected kgCO₂e saving · progress ring

The business side

The same data powers a dashboard for merchants: total footprint, average digital product carbon footprint (dPCF), emission trends against reduction targets, and a relative score showing how a product compares with competitors in its category. Store integrations pull the catalogue in, so the numbers start populated rather than blank.

Business dashboard
The same carbon data, aggregated for merchants and fed by their stores
Carbon Footprint Metrics
Total Carbon FootprintTotal GHG emissions across all products or services (CO₂e)
0 kgCO2e
Average dPCF per ProductAverage footprint per unit, enabling product-level optimisation
0 kgCO2e
Emission TrendsProgress against reduction targets
24 Jul135,923 kg+13.7%target
Relative Product CFA product's footprint versus competitors in its category
300
Your Relative Emissions Score is lowLast check on 21 Apr
KPI cards · emission trend vs targets (scrub) · relative product CF score 0–1000 · store sync