up the land it takes to grow your food,
collect your water, produce the materials
for the building you live in, the clothing you wear
and all the other things you use or consume...
add it all up, and that's your ecological footprint.
measure your ecological footprint in land.
It's expressed in acres or better yet in hectares.
One hectare is 100 x 100 square meters.
An acre is about 4047 square meters, so
a hectare measures about two-and-a-half acres.
would you want to know how big your footprint is?