1- I estimated how much I used car and taxis in a week 2.500 kilometers.
Then I calculated my total for a year .... 2.500 x 52=130.000 kilometers.
2- Then estimated how much I traveled by plane last year.
1 trip from Pereira to San Andres .... 232.56 Kilometers.
3- I estimated how much I used buses and subways last year
and divided it buy two because you produce less carbon dioxide when you
use public transportation.... 20 Km x 52 /2=520 Kilometers.
Finally, add I estimates 1-3 together to obtain a total estimate.
My total estimated travel is 650.000 Kilometers per year.