Until a few decades ago, food traveled much less than today. Looking only at supermarket shelves, our tables and pantries, we hardly notice what season we're in. Supply is so vast and varied that the we can find pretty much anything (from Coconuts to chestnuts, mangos to oranges) and everything seems to be local and within easy reach.
But it isn't. Do you know how much CO2 is released into the atmosphere for each kilogram of fruit produced overseas and transported to our country?