"In its annual review, the UN says the gap between carbon cutting plans and the reductions required to keep temperature rises below 2 degrees Celsius is 'alarmingly high'.
Pledges made so far cover only one-third of the cuts needed by 2030 to keep below that goal, the review warns.
Even if all the promises are kept, temperatures might still rise by 3 degrees by 2100.
However, cost-effective options are available that can close the gap."
Matt McGrath reports for BBC News October 31, 2017.
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Source: BBC News, 10/31/2017
