Daniel Ungar began on a path to what he considers his life project 25 years ago as a mechanical engineer designing agricultural machinery. Now, as CEO of Compost Or Ltd in Tel Aviv, Israel, he is helping tackle one of his country's most pressing challenges -- dealing with human and other organic wastes in an environmentally responsible and cost-efficient manner. Compost Or Ltd processes that green waste with about 40% of Israel's treated biosolids -- about 20,000 metric tons per month -- into a high-grade product for agricultural application. He adds that heavy metals are not an issue because of Israel's tough standards with regard to treating wastewater and keeping industrial wastewater out of the municipal wastewater stream. Compost Or processes about 15,000 metric tons of biosolids and about 5,000 metric tons of green waste/month, yielding about 7,000 to 8,000 cubic meters of finished compost for agricultural application at a rate of about 24-32 m3/acre.