Economy Vulnerable nations plead to raise ambition of climate targets by 2020 Updated : November 23, 2018 05:42 AM IST Through the summit's "Jumemmej Declaration", the forum's leaders committed to strengthening their national climate efforts by 2020 in order to pressure world governments to act. "Jumemmej" is a Marshallese word of seafaring origin calling for vigilance to keep a watch against threats. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.