Environment: Peak District "Pollution" versus T5

An interesting juxtaposition on BBC Breakfast. School kids helping to track the "pollution" emanating from the Peak District's weathered peats. And the Queen due to open Heathrow's sparkling Terminal Five. Which is worse? Allegedly the peat bogs chucking out rather than soaking up CO2 are SEVERAL TIMES worse than the whole of Heathrow.

Interesting stuff. When natural processes and a naturally occuring gas are termed "pollution" are we getting rather mired in gobbledy gook?