0 0 8 . ▁Pe at ▁collection ▁is ▁the ▁most ▁violent ▁attack ▁for ▁the ▁wild ▁nature . ▁In ▁pe at ▁collection ▁bog ▁is ▁dra ined ▁and ▁pe at ▁layer ▁is ▁collected ▁for ▁several ▁meters . ▁Forest ▁is ▁often ▁plant ed ▁in ▁the ▁area ▁after ▁the ▁pe at ▁collection . ▁Reg ener ation ▁is ▁possible , ▁but ▁the ▁complete ▁reg ener ation ▁of ▁the ▁bog ▁will ▁take ▁tens ▁of ▁thousands ▁of ▁years . ▁In ▁the ▁USA ▁it ▁was ▁calculated ▁in ▁ 2 0 0 2 ▁( S cience ▁ 2 9 7 ▁ 9 5 0 ▁ 2 0 0 2 ) ▁that ▁wet lands ▁are ▁econom ically ▁more ▁valuable ▁than ▁agricult ural ▁fields . ▁The ▁increase ▁of ▁bog ▁b iod iversity ▁support ▁from ▁$ 6 . 5 ▁billion ▁to ▁$ 4 5 ▁billion ▁can ▁give ▁$ 4 4 0 0 – 5 2 0 0 ▁billion . ▁econom ical ▁benefit ▁( in ▁the ▁world ). ▁ ▁New ▁invest ments ▁Pe at ▁is ▁the ▁most ▁popular ▁energy ▁source ▁in ▁Finland ▁for ▁new ▁energy ▁invest ments ▁ 2 0 0 5 - 2 0 1 5 . ▁The ▁new ▁energy ▁plants ▁in ▁Finland ▁starting ▁ 2 0 0 5 - 2 0 1 5 ▁have ▁as ▁energy ▁source : ▁pe at ▁ 3 6 % ▁and ▁hard ▁coal ▁ 1 1 % : ▁combined : ▁ 4 7 %. ▁The ▁major ▁carbon ▁dio x ide ▁em itting ▁pe at ▁plants ▁during ▁ 2 0 0 5 - 1 5 ▁are / will ▁be ▁( CO