According to David MacKay, in his TED talk A reality check on renewables, a plan to solve the worlds energy problems should involve $6$ levers. Each of the following is a lever he suggested using EXCEPT:

According to David MacKay, in his TED talk A reality check on renewables, a plan to solve the worlds energy problems should involve $6$ levers. Each of the following is a lever he suggested using EXCEPT:

Use more nuclear power

Read your meters to use less energy

Import energy generated using renewables from other countries

Develop more efficient modes of transportation

Grow biofuels in $8$km strips next to major highways

Installing better home insulation and more efficient heating devices

non of these they are all levers dicussed by david macmay