. ▁With ▁many ▁foss il ▁fu els ▁such ▁as ▁coal , ▁natural ▁gas ▁and ▁oil ▁resulting ▁in ▁ 8 6 % ▁of ▁the ▁primary ▁energy ▁produced ▁in ▁the ▁world ▁as ▁of ▁ 2 0 0 6 , ▁the ▁E PA ▁has ▁developed ▁many ▁programs ▁that ▁promote ▁efficient ▁energy ▁use ▁and ▁improve ▁environmental ▁quality ▁without ▁disturb ing ▁our ▁energy ▁supply . ▁ ▁Pol ic ies ▁and ▁programs ▁The ▁E PA ▁has ▁created ▁over ▁ 4 0 ▁programs ▁and ▁policies ▁towards ▁helping ▁to ▁deal ▁with ▁bio fu els ▁and ▁green house ▁g ases ▁as ▁well ▁as ▁find ▁ways ▁to ▁be ▁more ▁energy ▁efficient ▁and ▁help ▁to ▁slow ▁down ▁climate ▁change . ▁Their ▁climate ▁programs ▁provide ▁models ▁and ▁processes ▁to ▁invent ory ▁green house ▁gas ▁em issions ▁and ▁evaluate ▁the ▁effects ▁of ▁global ▁change ▁on ▁the ▁environment , ▁human ▁he ath , ▁and ▁the ▁US ▁economy . ▁Similarly , ▁the ▁E PA ▁has ▁also ▁created ▁the ▁C lean ▁C ities ▁Program ▁which ▁supports ▁public ▁and ▁private ▁partners hips ▁that ▁organ ize ▁clean ▁burning ▁alternative ▁fuel ▁vehicles ▁and ▁help ▁to ▁create ▁the ▁associated ▁fuel ing ▁infrastr ucture ▁to ▁improve ▁the ▁United ▁States ’ ▁energy ▁security ▁and ▁air ▁quality . ▁ ▁Research , ▁tools ▁and ▁technology ▁The ▁Dist ributed ▁Energy ▁Program ▁is ▁a ▁highly ▁successful ▁program ▁util ized ▁by ▁the ▁E PA ▁to ▁support ▁cost - effect ive ▁research ▁and ▁development ▁aim ed ▁towards ▁costs ▁and ▁emission ▁reduction , ▁as ▁well ▁as ▁impro ving ▁the ▁reli ability ▁and ▁performance ▁of ▁the ▁US ▁electric ▁energy ▁infrastr ucture . ▁The