PT - JOURNAL ARTICLE AU - Rattan Lal TI - Beyond COP 21: Potential and challenges of the “4 per Thousand” initiative AID - 10.2489/jswc.71.1.20A DP - 2016 Jan 01 TA - Journal of Soil and Water Conservation PG - 20A--25A VI - 71 IP - 1 4099 - http://www.jswconline.org/content/71/1/20A.short 4100 - http://www.jswconline.org/content/71/1/20A.full