Environment

Work out the CO2e of a regular commute by transport mode, per week and per year, using UK DEFRA conversion factors

Estimate the CO2e of a flight from its distance and cabin class, using UK DEFRA conversion factors with and without radiative forcing

Estimate how many trees it would take to absorb a given amount of CO2, and roughly how long that takes, using a widely cited UK rule of thumb

Estimate a yearly household carbon footprint from home energy, car travel, diet and flights, using UK DEFRA conversion factors

Estimate household water use per person per day and where it typically goes, against the UK average

Estimate the CO2e saved by recycling given weights of aluminium, steel, glass, plastic and paper, using WRAP figures

Work out the annual cost and CO2e of home electricity and gas use, and the effect of changing one of them, using UK DEFRA conversion factors