No Green Sheep

This is the first in a multi-part series looking at different forms of transport.
Buses are generally loved by people who care about the environment. But, do they actually earn this reputation?
4-10 mpg
Different studies point to an average fuel efficiency of around 4-10mpg1,2
40-100 pmpg (passenger-miles per gallon)
Statistics for the UK in 2008 state an average occupancy [...]

I was recently informed that boiling water in a kettle on the hob requires less energy than boiling water in an electric kettle. I wasn’t convinced as the informer had no numbers to back it up. So, I’ve done a little research and found that it is actually true.
The Numbers
The sources I have come across [...]

A common thinking is that if you want to be green you should only work for a green company. I am not convinced that this is the best philosophy if you care about making the world a better place.
If nobody green works at a non-green company then it may never improve
If all the people who [...]