Ming76
environmentaly friendly这是标准的 
energy-saving and environmentally friendly形容词,节能环保的
energy-efficient and eco-friendly这样简洁明了
TheLow-CarbonEconomicNowadays,withmoreandmoreseriousproblemsuchastheglobalincreasingtemperture,themeltingiceandtherisingsea-levering,peoplearerecognizingtheimportantofdevelopingthelow-Therearemanywayswecandotoreachtheloe-Fristly,Secondly,weshouldhavethesave-energyconsciousanddosomethingwhichwecanmake,forinstance,usingthebusrantherthancarwhenyougoout,re-usethethingthatcanberecycleused,Lastbutnotleast,weshouldplantmoretreesorothergreenplants,inwhichwaywecannotonlyimprovetheenvironment,Inmyopnion,themostimportantthingtoreachthelow-Onceeveryonehavethesenceoflow-carboneconomicandhavetheactionbythemselves,望被采纳!