" Carbon footprint "
Meaning:
A measure of the amount of carbon dioxide (CO2) emitted during an industrial or domestic process.
Example:
I just can't junk my Ford Mustang. I know it's a gas guzzling muscle car but I'll try to improve my carbon footprint some other way.
Where did it originate?:
UK - late 20th century.
Where is it used?:
Hear the idiom spoken:
