edom ▁of ▁expression ▁is ▁a ▁corner stone ▁of ▁dem ocracy ▁and ▁a ▁corner stone ▁of ▁international ▁human ▁rights ▁declarations . ▁ ▁Definition ▁ ▁As ▁of ▁ 2 0 0 6 , ▁the ▁Finn ish ▁Ministry ▁of ▁Trade ▁and ▁Indust ry ▁( K TM ) ▁pe at ▁described ▁pe at ▁as ▁a ▁" slow ly ▁renew able ▁bi om ass ▁fuel ". ▁The ▁definition ▁is ▁from ▁the ▁report : ▁Patrick ▁Cr ill ▁( USA ), ▁Ken ▁H arg re aves ▁( UK ) ▁and ▁Mr . ▁At te ▁Kor h ola ▁( F IN ) ▁Tur pe en ▁as ema ▁Su omen ▁k as vi hu one ka as ut ase issa ▁( 2 0 0 0 ) ▁ordered ▁by ▁K TM . ▁This ▁report ▁has ▁been ▁critic ised ▁by ▁several ▁scient ists . ▁For ▁example , ▁environment ▁exper ts ▁and ▁university ▁academ ics ▁Mr . ▁Ra imo ▁He ik kil ä ▁( O ulu ), ▁Mr . ▁T ap io ▁Lind holm ▁( H els ink i ) ▁and ▁Mr . ▁He ik ki ▁Sim ola ▁( Jo ens u u ) ▁wrote ▁an ▁oppon ent ▁review ▁in ▁ 2 0 0 7 . ▁In ▁short : ▁The ▁use ▁of ▁pe at ▁fuel ▁releases ▁carbon ▁that ▁was ▁bound ▁long ▁before ▁the ▁industrial ▁revolution . ▁The ▁renew al ▁of ▁pe at ▁layers ▁in ▁thousands ▁of ▁years ▁is ▁ins ign ific ant ▁compared ▁to ▁the ▁carbon ▁em issions ▁of ▁the ▁pe at ▁fuel ▁in ▁regard ▁to ▁the ▁climate ▁change . ▁It ▁is ▁highly ▁question able