Category 19
Sustainability & waste
Make energy, emissions, water, reuse, recycling, and waste trade-offs visible.
14 practical tools
All 14 calculators are available now with visible formulas and assumptions.
Vehicle emissions estimate
What emissions follow from distance and a user-supplied emissions factor?
Flight emissions estimate
What emissions follow from flight distance and the entered factor?
Electricity emissions
What emissions follow from electricity use and the local grid factor?
Home heating emissions
What emissions follow from heating energy and the entered factor?
Solar emissions avoided
What grid emissions could solar generation displace?
Water saving impact
How much water does a lower-flow habit save over time?
Compost diversion
How much organic waste can be diverted from general waste?
Reusable item break-even
How many uses make a reusable item cheaper than disposables?
Household waste per person
How much waste does each household member generate?
Recycling diversion rate
What percentage of total waste is recycled or composted?
Standby energy emissions
What emissions come from always-on devices over a year?
Packaging weight ratio
What share of shipped weight is packaging?
Low-carbon commute impact
What emissions difference follows from changing commute modes?
Product reuse carbon break-even
How many reuses offset a reusable product’s extra production footprint?