my yard is 90% covered in trees. This generates massive amounts of leaves each fall that I'm still working on getting rid of. I prefer to compost them rather then burn them or pay to haul them away as I could use the compost and getting rid of them just seems like a stupid idea. The issue is I know that you need to mix the leaves/branches (brown) with green things like grass and kitchen scraps and so on. In my first compost pile I let my grass grow for a month and then mixed the clippings into about 5% of my leaves and shredded branches. This worked great at first, everything started going brown, and the where the grass and chips where bunched together got hot and white spots appeared on everything. I flipped it weekly and kept checking the moisture. just today I went to flip it the 4th time and found it's not hot and most of the grass is gone. my assumption is I need more green stuff but my yard will never generate enough to handle the number of leaves I have. Can I buy anything to add that simulates whatever the grass puts into the pile? do leaves and sawdust just take years to break down and I'm SOL on speeding it up? Any suggestions?