the total amount of greenhouse gases (including carbon dioxide and methane) that are generated by our actions
carbon foorprint
multiply
to understand or find (something, such as a reason or a solution) by thinking.
sort out
the distance between the place where food is grown or made and the place where it is eaten
food miles
keep something cold (such as in fridge)
refrigerate
the increase in temperature of the earth's atmosphere
global warming
feeling ashamed because you have done something that you know is wrong
guilty
the process of wrapping goods
packaging
a place where rubbish is left
rubbish dump
a building where rubbish is recycled
recycling centre
put something into a box, bag, etc
package
it doesn't take a lot of power to work
energy-efficient
goood to environment
eco-friendly
gases in the earth's atmosphere that trap heat
greenhouse gases
